Planet Earth Weekly

Climate Change and Renewable Energy: Saving Our Planet for Future Generations


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Removing Carbon Dioxide from our Atmosphere

Carbon Engineering

Cleaning CO2 from our atmosphere.

“CarbonEngineering:“Commercialization of Direct Air Capture (DAC) technology that captures CO2 directly from the atmosphere at an affordable price.”

By Linn Smith

According to NASA, in a report from June 2019, CO2 in our atmosphere reached 412ppm (parts per million) which hasn’t been seen in human history. CO2 is the gas that we humans are rapidly releasing into our atmosphere, trapping heat similar to a greenhouse. It is a result of burning fossil fuels such as coal.

Fossil Fuels

Coal and Oil Formation

The Rise in Earth’s Temperature

Earth’s average temperature has risen 1.62 degrees F since late 1800’s, with most of the rise in temperature occurring in the past 35 years. The 5 warmest years have occurred since 2010! At this point in history the answer to survival of life on our planet is multifaceted. We must work to not only offset our personal CO2 emissions, but also seek ways of CO2 removal from our atmosphere before it’s too late
.

Carbon Offsets

A carbon offset is an action everyone can take. It means compensating for your emissions in one part of your life by working to cut CO2 emissions somewhere else or contributing to programs that are working to combat global warming.

Unless you’re driving an electric or hybrid, an average car can emit about 5 tons of carbon dioxide into the atmosphere each year. Can you plant enough trees in your yard to offset your car pollution? Probably not.

There are many online sites that will calculate your CO2 footprint with recommendations to offset emissions, such as planting trees, or you can go to the EPA website and use their carbon footprint caluculator to calculate the carbon footprint of you and your family.

Clean Energy

Clean Energy: Make It a Priority!

Planting Trees to Offset Your Carbon Footprint

According to http://www.urbanforestrynetwork.org, “On average, one acre of new forest can sequester about 2.5 tons of CO2 a year. Young trees absorb about 13 pounds per tree each year. Trees reach their most productive stage of carbon storage at about 10 years, at which point they are estimated to absorb 48 pounds of CO2 per year.”

An MIT study states that the average CO2 emissions emitted per person per year in the U.S.. is 20 metric tons, compared to the world average of 4 tons.

Carbon Engineering

CO2 is turned into clean fuel.

Carbon Engineering

Jennifer Wilcox states in her TedTalk that we have the technology to clean up the atmosphere, but it has been too expensive until now. Companies are currently working to bring down this cost. One company, Carbon Engineering, www. carbonengineering.com, is focusing on “commercialization of Direct Air Capture (DAC) technology that captures CO2 directly from the atmosphere at an affordable price.” They do this in a “closed loop where the only major inputs are water and energy and the output is a stream of pure, compressed CO2 that can be stored underground or converted into fuels using AIR To FUEL technology.”

“AIR to FUEL uses CO2 captured from the atmosphere to synthesize clean transportation fuels. It uses renewable electricity to generate hydrogen from water, and then combines it with CO2 captured from atmosphere to produce hydrocarbon fuels such as diesel, gasoline and Jet-A, all with little or no fossil carbon emissions to the atmosphere. Individual facilities can be built to capture one million tons of CO2 per year which is equivalent to 250,000 average cars per year.”

Combating Climate Change

Cleaning our atmosphere

Carbon Engineering

Combating global warming

We all have a responsibility to do our part with no more excuses! We can’t wait for someone else to do it. For survival on earth, we need to stabilize the ppm (parts per million) of greenhouse gases in our atmosphere. The outcome of doing nothing about our changing climate is mass extinction of species, including our own, caused by extreme weather and our changing climate.

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The Island of Greenland Responds to Climate Change

Climate change

The rapidly melting artic

“The melting of the ice on Greenland is significant!”

By Dr. John J. Hidore

There is no doubt that Planet Earth is warming relatively fast. Data of all kinds supports this allegation. The data include biological, geological, hydrological and climatological. The year 1880 has been established as the beginning of a period of accelerated warming due to the increased use of fossil fuels and a growing population. From 1880 to 1979, the global temperature increased 0.1°F (0.05ºC) above the pre-industrial average. By 2016, the global temperature had climbed 1.4°F(0.6ºC).

Arctic Ocean

Melting of the Arctic Sea Ice

Northern Hemisphere is Warming Faster than the Southern

Climate normals are periods of 30 years that move forward every 10 years. The current normal being used is that of the period 1980-2010. When compared to the 30 year global average for the period 1980-2010, the northern hemisphere is warming faster than the average for the earth as a whole. It is also warming faster than the southern hemisphere. The reason the Northern Hemisphere is warming faster than the southern Hemisphere is due to the fact that most of the earth’s land mass is in the Northern Hemisphere.

climate change

The exchange of energy is causing rapid arctic melting.

The Arctic Region is the Most Rapidly Warming Region in the Northern Hemisphere

The Arctic is the coldest region in the Northern Hemisphere. The region consists of the sea surrounding the North Pole and land that rings the sea. The arctic is warming faster than mid-latitude or tropical regions. It is warming more than twice as fast as the average for the earth. The reason for this is, as ice and snow melt on the fringes of the arctic, the ratio between reflection and absorption of solar energy changes drastically. In the winter the sea is covered by a veneer of ice and the surrounding land is generally covered by snow. With the onset of summer the increased solar radiation results in the melting of the ice and the snow melting off the land. The more snow and ice that melts, the faster the arctic warms. This change results in what is known as a positive feedback mechanism. More and more energy is absorbed rather than reflected or used to melt the ice. As the melting season lengthens the land and atmosphere above it warm faster than areas further south. While the Arctic is still the coldest region in the Northern Hemisphere, it is warming more rapidly than other areas.

Climate Change is altering the World’s largest Island

Greenland has the most extensive ice cover of any island on the planet. In much of the region the ice is more than a mile ( O.6 km) thick. The melting of the ice sheet has been monitored by satellite since 1979. The ice sheet normally starts to melt at the end of May. In 2016 the ice began to melt in mid-April. The higher temperatures resulted in early melting of the ice sheet. In the second week of June there was melting over nearly half of the ice surface. This was a record area of melting for this date. Part of the reason for the extensive melting this year was the light snow cover during the past winter. It melted fairly quickly allowing the sunshine and warmer air to increase melting in the older snow and ice beneath. How much melting occurs on any given day depends on wind direction and cloud cover.

The year of 2012 was the record year for total melting of the ice sheet. The town of Narsarsuaq recorded a temperature of 76.6°F. In that year there was a net loss of some 200 billion tons of ice.

Climate Change, Global Warming

Climate Change Affects Everyone!

Selected High Temperatures

2012 Marsarsuaq May 76.6 °F
2013 Manitsoq July 78.6 °F
2014 Kangerlussuaq Jan 73.8°F
2016 Nuwk June 75 °F

Spring temperatures came early to the Arctic this year. The island of Greenland experienced these early warm temperatures. Average temperatures exceeded normal by several weeks. In some areas the temperatures were as much as 40° F (22°C) above normal. The early warm temperatures have resulted in early and extensive melting of the ice sheet.

The melting of the ice on Greenland is significant because it is the major source of water for the current rise in sea level. If all the ice melted it is estimated that it would raise sea level approximately 24 feet (7.3 meters). Since data has been collected, in the early 1970’s, sea level has risen about ½ inch (1 ¼ centimeters).

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Renewable Energy: Hatch, New Mexico

“The systems are best for high and dry climates, which makes Hatch an optimal location.”

As a resident of New Mexico for 6 years, I have long known the value of Hatch green chili…the Best in the West! But the past several years I have traveled Hwy 26, a lonely stretch of road through seemingly baron land just west of Hatch, passing massive wind and solar fields.

Solar Power

According to VillageofHatch.org here is the data on the impressive energy produced by these solar fields, plus pictures I was able to snap along my route recently:

“The Hatch Solar Energy Center consists of 84 Amonix 60-kW systems on 41 acres of land. The platform and panels are each 50 feet wide and 55 feet high tall. Each panel is made up of three different photovoltaic materials in a single cell so they extract more energy from the range of wavelengths in sunlight. Dual-axis tracking systems maximize energy production throughout the day by allowing the CPV systems to follow the sun. The systems are best for high and dry climates, which makes Hatch an optimal location. The systems require no water in power production, use land better, and produce more energy per acre than any other solar technology— equivalent of planting 3,500 trees every year it operates.”

Wind Power

The Macho Spring windfarm is nearby.

Wind Turbines

Along my route I also passed a train carrying at least 30 wind turbine blades…the trip was a visual feast for my “build it green” eyes!

And, while you’re on the drive, stop at Sparky’s in Hatch and get some green chili lemonade, it’s a treat your taste buds won’t soon forget!

Happy Trails!

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Cities Accept the Challenge of Climate Change

“It seems clear now that political organizations other than national governments are going to lead in taking actions to reducing climate change.”

Sustainable living

It’s our responsibility to change.

By Dr. John J. Hidore

November 19, 2018—–Earth’s climate has been changing from the time the planet came into being. It has gone through times when it was much warmer than today and others when it was colder. The climate of today is one that is inseparable from the growth of the human population. The industrial revolution began about 1770 AD and is synonymous with the advent of the steam engine. Steam engines burned fossil fuels, primarily wood or coal.

Planet earth is a single system in which nothing or no process exists in isolation. The burning of fossil fuels began to change the composition of the atmosphere. The temperature of Earth began to warm above what might be expected from natural causes and the term global warming started to appear in literature. Professional conferences by groups of scientists and others began to occur.

In 2015 an international conference on climate change was convened in Paris, France to discuss the problems associated with a changing climate. What is known as the Paris Agreement was ultimately approved by representatives of nearly 200 countries. However, the Agreement does not dictate any actions to be taken by the signatories. Many have done little or nothing concrete to stem climate change

Sierra Club

Sierra Club for Clean Air

Cities, Provinces and Other Regional Governments Take Charge

Many homogeneous political units such as cities, states or provinces began to respond to climate change because governments of these units began dealing with problems of flooding, unhealthy air to breath, increasing heat, etc.

Cities and towns are home to the majority of people now living on the planet. The number living in cities is growing by more than a million each week. By mid-century the percentage of people living in urban areas is estimated to reach 70%.

Groups of cities are now actively working together to reduce greenhouse emissions. As of June 6, 2018, approximately 250 mayors of American cities have officially adopted the Paris agreement. These cities contain about 60 million people. They are part of a group called Mayors National Climate Action Agenda. Among the cities that have agreed to support the Paris Agreement is Pittsburgh, Pennsylvania. This is the very city where U.S. President Trump stated he did not represent Paris and might withdraw the United States from the agreement.

building green

Cities, states and individuals must do their part in preventing climate change.

Reducing Carbon Emissions

Perhaps the most concerted effort being made is to reduce carbon emissions. Carbon dioxide (CO2) is the primary gas in the absorption of energy in the atmosphere. Cities account for about 70% of carbon dioxide emissions. A major part of the effort to reduce emissions is reducing carbon emissions from motor vehicles. Another is switching to renewable fuels for generating electricity. This means eliminating power plants using fossil fuels.

The Sierra Club recently estimated that encouraged by their Beyond Coal campaign, coal-fired power plants have been closing at times at the rate of one every 16 days. This month representatives from more than 70 countries are gathering in Edmonton, Canada, to explore how to develop cities that can create and maintain a climate that adds a minimal of carbon to the atmosphere.

While some national governments, such as that of the United States, refute the whole concept of climate change and do not want to take any action, the people are taking combined action through more localized governments. It seems clear now that political organizations other than national governments are going to lead in taking actions to reducing climate change.

Planning Sustainably

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Trump Rolls Back Clean Air Act

Following are recent changes announced by the Trump administration for rolling back the Clean Air Act. This article was copied from the EPA’s website:

EPA Administrator Pruitt: GHG Emissions Standards for Cars and Light Trucks Should Be Revised
04/02/2018

WASHINGTON (April 2, 2018) — Today, U.S. Environmental Protection Agency (EPA) Administrator Scott Pruitt is announcing the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that, in light of recent data, the current standards are not appropriate and should be revised. Administrator Pruitt is also announcing the start of a joint process with the National Highway Traffic Safety Administration (NHTSA) to develop a notice and comment rulemaking to set more appropriate GHG emissions standards and Corporate Average Fuel Economy (CAFE) standards.
“The Obama Administration’s determination was wrong,” said EPA Administrator Scott Pruitt. “Obama’s EPA cut the Midterm Evaluation process short with politically charged expediency, made assumptions about the standards that didn’t comport with reality, and set the standards too high.”
Under the Clean Air Act (CAA), EPA sets national standards for vehicle tailpipe emissions of certain pollutants. Through a CAA waiver granted by EPA, California can impose stricter standards for vehicle emissions of certain pollutants than federal requirements. The California waiver is still being reexamined by EPA under Administrator Pruitt’s leadership.
“Cooperative federalism doesn’t mean that one state can dictate standards for the rest of the country. EPA will set a national standard for greenhouse gas emissions that allows auto manufacturers to make cars that people both want and can afford — while still expanding environmental and safety benefits of newer cars. It is in America’s best interest to have a national standard, and we look forward to partnering with all states, including California, as we work to finalize that standard,” said Administrator Pruitt.
Additional Background
As part of the 2012 rulemaking establishing the model year 2017-2025 light-duty vehicle GHG standards, EPA made a regulatory commitment to conduct a MTE of the standards for MY 2022-2025 no later than April 1, 2018. This evaluation would determine whether the standards remain appropriate or should be made more, or less stringent.
In November 2016, the Obama Administration short-circuited the MTE process and rushed out their final determination on January 12, 2017, just days before leaving office. Since then, the auto industry and other stakeholders sought a reinstatement of the original MTE timeline, so that the Agency could review the latest information.
EPA and the U.S. Department of Transportation announced a reestablishment of the MTE process in March 2017. And, in August 2017, EPA reopened the regulatory docket and asked for additional information and data relevant to assessing whether the GHG emissions standards remain appropriate, including information on: consumer behavior, feedback on modeling approaches, and assessing advanced fuels technologies. EPA also held a public hearing on this topic.

For more information: https://www.epa.gov/regulations-emissions-vehicles-and-engines/midterm-evaluation-light-duty-vehicle-greenhouse-gas

https://www.epa.gov/sites/production/files/2018-04/documents/mte-final-determination-notice-2018-04-02.pdf

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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Jostein Gaarder on Climate Change

“Human activity is draining resources and destroying natural habitats.”

By Linn Smith

February 6, 2018—–Besides being a successful author, Jotstein Gaarder works to support both human rights and a sustainable environment. Gaarder clearly states our current world condition concerning the cause and effect of climate change in the following article, which is the foreword to his 20th addition of Sophie’s World. Sophie’s World is a novel he wrote in 1995 which became a best seller around the world. 

This exerpt is from the article, “Sophie’s World in Danger: Living as though everything centres on our time is just as naïve as thinking the Earth is flat” from http://www.independent.co.uk:

“Two decades ago, a history of philosophy by an unknown Norwegian teacher became a most unlikely phenomenon. But how has time changed the writer? And how might he change his book now, if he could? Jostein Gaarder takes up his own story. However, by far the most important philosophical question of our time must be this: how are we going to save our civilization and the basis of our existence?

From time to time I am asked a question. If I had written Sophie’s World today, is there something important I would have added? Is there something I would have placed more emphasis on? The answer is a resounding yes! If I were to write a philosophical novel today, I would have focused a lot more on how we treat our planet.

It is strange to look back after only 20 years and realize that Sophie’s World doesn’t really address this question. The reason may be that over the course of these 20 years we have gained an entirely new awareness of climate change and the importance of biological diversity. An all-important principle in the study of ethics has been the golden rule, otherwise known as the reciprocity principle: do to others what you would like them to do to you. Over time, we have learnt to apply this rule more widely. In the Sixties and Seventies, people came to realize that the reciprocity principle must apply across national borders, both to the north and to the south.

But the golden rule can no longer just apply across space. We have begun to realize that the reciprocity principle applies across time, too: do to the next generation what you would like them to have done to you, had they lived on the planet before us.

It’s that simple. Love thy neighbor as thyself. Obviously, this rule must apply to the next generation and to everyone who lives on the planet after us. They are human beings, too. Therefore, we should not leave behind a planet which is less valuable than the one we have enjoyed. A planet with fewer fish in the sea. Less drinking water. Less food. Fewer rainforests. Fewer coral reefs. Fewer species of animals and plants… Less beauty. Less wonder. Less splendor and happiness.

Jostein Gaarder

Climate change and responsibility

The 20th century has taught us that people need conventions and obligations which go beyond national boundaries. 

The question we are left with at the beginning of the 21st century is: for how long can we claim human rights without accepting they come with fundamental obligations. The time is ripe for a Universal Declaration of Human Obligations. It no longer makes sense to think about an individual’s rights and freedoms without also thinking about the responsibility of individuals and individual states – not least our responsibility to safeguard the rights of future generations.

At this very moment we are experiencing the consequences of man-made climate change. They are dramatic. However, opinion polls indicate that the people of this world are not particularly concerned. One day in the future, global-warming denial may be considered one of the greatest conspiracies of all time.
The era we live in is exceptional in every way. On one hand, we belong to a triumphant generation, which can explore the universe and map the human genome. On the other, we are the first generation seriously to lay waste to the environment. Human activity is draining resources and destroying natural habitats. We are changing our surroundings to such an extent that people think of our time as an entirely new geological era.

Climate change and sustainable living

Jostein Gaarder

Huge volumes of carbon are contained in plants, animals, the sea, oil, coal and gas. The carbon is just itching to be oxidized and released into the air. The atmosphere on dead planets such as Venus and Mars is mostly CO2, and that would also be the case here if the Earth’s processes didn’t hold the carbon at bay. But from the end of the 18th century, fossil fuels have tempted us like the genie in Aladdin’s lamp. “Release us,” they whispered. And we gave into that temptation. Now we are trying to force the genie back inside the lamp.

If all the remaining oil, coal and gas on this planet is extracted and burnt, our civilization will not survive. But many people and many countries see this as their divine right. Why shouldn’t they use the fossil fuels on their land? Why shouldn’t countries with rainforests chop them down? What’s the difference? What difference will it make to CO2 levels or to biodiversity if one country stops while the rest carry on?

Over the past few centuries, most people here in Norway have been lifted out of poverty. The same is true in many regions of the world. We should not forget that. But this prosperity has come at a high price, a debt we are only now beginning to pay off. Before the Industrial Revolution, the atmosphere contained 275 CO2 parts per million. At the moment of writing, that figure is 400 ppm and it is still rising. Devastating climate change is unavoidable at this rate. Sooner or later we must attempt to return to pre-industrial CO2 levels. 

According to Dr James Hansen, considered by many to be one of the world’s leading climate researchers, we must – initially at least – get this level down to 350 ppm. Only then can we feel reasonably secure that we will escape the worst catastrophes for this planet and for our civilization. But the figure is not going down. It is going up.

If we are to save biodiversity, we need to revolutionize our thinking. Living as though everything centers on our time is just as naive as thinking the Earth is flat. Our time is no more significant than future times. It is only natural that our time is the most significant to us. But we cannot live as though our time is also the most important one for those who come after us. We must respect future times as we respect our own time.
In relationships between individuals and between nations, we have emerged from our “natural state”, characterized by the survival of the fittest. But when it comes to the relationship between generations, unbridled lawlessness still reigns.

Everyone has the right to practice their beliefs, and everyone has the right to hope that our planet can be saved. But that does not guarantee that there will be a new heaven and a new earth awaiting us. It is unlikely that supernatural forces will bring about a Judgement Day. But it is inevitable that we will be judged by our descendants.

Climate change comes down to greed. The destruction of biodiversity comes down to greed. But greed does not trouble the greedy. History is our witness. 

The ethical question is not difficult to answer – what is difficult is living by the answer. But if we forget our descendants, they will never be able to forget us. The question of how widely we should apply the reciprocity principle comes down to identity. What is a human being? Who am I? If I were merely myself – that is, the body sitting here writing – I would be a creature without hope. But my identity goes deeper than my own body and my own short time on Earth. I am a part of – and I take part in – something which is bigger and greater than myself. Humans tend to have a local and short-term sense of who they are. We used to have to scan our surroundings, wary of dangers and prey. That gives us a natural tendency to defend ourselves and protect our own. But we do not have the same natural tendency to protect our descendants, not to mention species other than our own.

Favoring our own genes lies deep within our nature. But we don’t have the same instinct to protect our genes four or eight generations down the line. That is something we must learn – just as we had to learn to respect human rights. Ever since our species emerged in Africa, we have fought a determined battle to prevent our branch of the evolutionary tree from being cut off. That battle has been successful, for we are still here. But we have become so prosperous that we are threatening the basis of our own survival. We have become so prosperous that we are threatening the basis of every species’ survival.
As clever, vain and inventive as we are, it is easy to forget that we are simply primates. But are we really so clever if we put our cleverness and inventiveness ahead of our responsibility for the future of the planet?

No longer can we think only about one another. The planet we live on is an essential part of our identity. Even if our species is destined to die out, we still carry an important responsibility for this unique planet and for the nature we leave behind. Modern humans think we are almost entirely shaped by our cultural and social history, by the civilization which produced us. But we are also shaped by our planet’s biological history. There is a genetic heritage as well as a cultural one. We are primates. We are vertebrates.

It took billions of years to create us. Billions of years to create a human being! But are we going to survive the next millennium?

What is time? First we have the horizon of the individual, then of the family, of culture and of literary culture, but there is also geological time – we come from tetrapods that crawled out of the sea 350 million years ago – and finally, there is cosmic time. Our universe is almost 13.7 billion years old.

But in reality, these periods of time are not as distant from one another as they may seem. We have reason to feel at home in the universe. The planet we live on is precisely one third of the age of the universe, and the class of animals to which we belong, the vertebrates, has existed for a mere 10 per cent of the time our solar system and life on Earth have existed. The universe is no more infinite than that. Or conversely: our roots and our kinship are intricately and deeply woven into the universal soil.

Human beings may be the only living creatures in the entire universe who have a universal consciousness. We have a staggering sense of the immense and mysterious cosmos we are part of. Therefore, not only do we have a global responsibility to save our planet. We have a cosmic responsibility.”

This is the foreword to the 20th anniversary edition of ‘Sophie’s World’ (Weidenfeld & Nicholson, £8.99) published 8th October 2015. Translation © Paul Russell Garrett 2015 is published 8th October 2015.

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 Agrivoltaics: Growing Food for the Future

Agrivoltaics

Agrivoltaics: Food and Solar

“Agrivoltaics combines agriculture with energy efficiency while growing plants beneath solar panels.”

By Linn Smith

January 28, 2018—- Co-location means two or more groups, sharing the same place. Agrivoltaics, also known as Agrophotovoltaics, means using the same piece of land for solar power plus agriculture. Agrivoltaics, or solar farming, is a new way of growing plants, combining agriculture with energy efficiency while growing plants beneath solar panels.

Agrivoltaics: Dual Use of Land

In 1981, Adolf Goetzberger and Armin Zastrow developed the idea to improve overall production of crops. Dr. Goetzberger founded the Fraunhofer Institute for Solar Energy Systems in Germany. His work involved making solar an alternative to fossil fuels. In 1981, he published a paper titled, “Potatoes under the Collector,” which proposed a setup for solar energy systems in combination with agricultural land use.

agrivoltaics

Growing food with solar

Dr. Eicke Weber, Director of the Fraunhofer Institute stated, “In view of the dynamic worldwide growth of solar installations of the last decade and the increase in land usage resulting from solar installation systems, innovative concepts, like agrophotovoltaics (agrivoltaics) which facilitates the dual usage of agricultural land, help to further and accelerate the transformation of the global energy system.”

Dr. Goetzberger used the term Agrophotovoltaics or APV, as a method of harvesting the sun for both power and production of crops. APV is currently an ongoing project in Germany which demonstrates that land for both growing crops and solar electricity are compatible. Dual use of the land is resource efficient, reduces competition for land and opens up a new source of income for farmers.

The APV System

The APV system was installed on organic farmland in Germany in 2015. Approximately seven acres were used to produce crops under the ground-mounted solar panels, which were built about 5 yards off the ground. Four different crops were planted. The land in use not only generates electricity from the solar panels but is also growing food. The solar panels provide a uniform light distribution on the crops using reflection. To prove their theory, they also planted a control plot nearby using the same 4 crops, excluding the solar panels. The scientists wanted to determine which crops would grow best. Result: The crops under the APV system produced about 80% of that of the control crop. This experiment is ongoing and data will be analyzed in 2018.

agrivoltaics

Agrivoltaics: Growing food to feed the planet.

Agrivoltaics and Biosphere2

A similar experiment was being conducted at Biosphere2 when I visited several weeks ago. This research, headed by Barron-Gafford, Assistant Professor, revealed that the solar system above the crops created a warmer environment than normal when no plants were beneath , similar to the heat-island effect that happens in cities surrounded by cement and asphalt. He stated, “So think about it, if you get rid of all the plants when you put in renewables energy, you’ve gotten rid of that cooling potential… plants under the panels would allow the air to circulate and would take up carbon for photosynthesis by opening up their pores, or stomata, while letting water escape from their leaves and you get a warmer environment. We wanted to see if you put the cooling effect back into the system by growing plants beneath the solar panels, you can actually cool those panels back down and mitigate that heat island effect.”

When solar panels get too warm they start to lose their efficiency. By growing plants beneath the panels they can cool down and retain that efficiency, which makes for more renewable energy per parcel of land. The panels also shade the plants, reduce evaporation and the crops require less water to grow underneath.

agrivoltaics

Agrivoltaics

In the future, as world population grows, solar and land for food must not be in competition. The world population today is approximately 7.6 billion. Two hundred years ago it was 1 billion. At the close of the 21st century the population will be more than 11 billion. The question remains…will we be able to feed our planet’s population and meet the demand for clean energy?

Agrivoltaics and Clean Energy

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Puerto Rico: Rebuilding Sustainably

Renewable Resources

 

“Building sustainably in Puerto Rico can take many different forms.” 

By Linn Smith

October 19, 2017—Even though Puerto Rico is going through a devastating time after the hurricane, it is essential that we not only meet the current needs of the people, but also think about its future….rebuilding sustainably. Areas devastated by wind and flooding must not only think about immediate needs, but consider the future way climate change may threaten vulnerable coastal areas. 

There is an agreement among scientists that our warming climate is producing larger, more aggressive hurricanes, and rising oceans are leading to stronger storm surges, destroying and flooding inland areas.

Puerto Rico: Sources of Energy

According to the U.S. Energy Information Administration, Puerto Rico has some renewable solar, wind, hydropower and biomass resources, but relies primarily on imported fossil fuels to meet its energy needs, importing mostly from the U.S.

In 2016, Puerto Ricans paid more for their power than people in any other state except Hawaii, with 47% of electricity coming from petroleum, 34% from natural gas, 17% from coal and only 2% from renewable energy.

The Future of Energy in Puerto Rico

Now is the time to make decisions about Puerto Rico’s future energy needs. How will Puerto Rico get its power in the future? PREPA, the Puerto Rico Electric and Power Company, Puerto Rico’s only utility company, is mismanaged and highly in need of upgrading according to some sources. According to http://www.commondreams.org, it would be a waste to pour more money into this system. Instead, we need to invest funds into local renewables and energy efficient transportation, such as streetcars and light rail trains. 

Richard Heinberg in the article “Disaster in Puerto Rico” stated, “This is a chance to build back sustainably. People tend to maintain their status quo as long as it’s viable, but when in dire straits, they’re more likely to listen and when denial is no longer possible, people are more likely to face reality.”

Eigg renewables

Eigg uses 99% Renewable Energy

Eigg, Scottland: 99% Renewable

According to an article by David Nield, March 2017, http://www.sciencealert.com, researchers from around our planet are visiting the tiny, Scottish island of Eigg, which is using wind, solar and hydo to obtain the island’s power. This system, owned and operated by the island’s residents, has been using sustainable energy since 2009. Eigg Electric uses a combination of sustainable resources to ensure there is always energy. When back-up energy is needed, it’s supplied by several diesel generators with cables linking all the sources of energy together. Renewable energy is used 95% of the time and excess energy is stored in a bank of 100 batteries. When these batteries are full, electric heaters automatically switch on in the church and community hall so nothing is wasted. Eigg’s population has doubled since this system has been in place, but the system is still meeting the needs of the residents. The drawback is that citizens are limited to the amount of power they can use daily from the public utilities
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Ta’u, a small island in Samoa, is also changing from diesel to renewables. Today it’s powered by 5,000 Solar City solar panels and 60 Tesla Powerpack battery storage units. The Powerpack is a massive battery, 16 Powerwall battery pods encased in a weatherproof box, that can store electricity during the day when supply is abundant and discharge it when demand goes up after the sun goes down. This system provides the island with about 99% of its needs.

Tesla solar project in Hawaii.

Tesla and the Powerpack Battery

Tesla has also built a huge solar energy plant on the island of Kauai, one of Hawaii’s main islands. This project will reduce fossil fuel by 1.6 million gallons per year. The island signed a 20 year contract with Tesla to buy solar generated electricity from solar panels installed on the island for 13.9 cents per kilowatt hour. The average price of electricity in Hawaii is 37.34 cents per kwh, the highest rate in the nation. Kauai is the first major solar/storage project for Tesla. Tesla states, “We will work with energy providers around the world seeking to overcome barriers in the way of building a sustainable, renewable energy grid of their own.”

Tesla is also in the process of shipping battery packs to Puerto Rico, but details of the project have not yet been made available. Building sustainably in Puerto Rico can take many different forms and accepting help from Tesla could be a starter.

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Puerto Rico: Build Sustainably


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History of the United State’s Effort to Lead the War on Climate Change

Climate Change

Temperatures are steadily rising on our planet.

The President’s Decision Will Have Major Effects on People, the Environment, and the International Status of our Country.

By Dr. John J. Hidore
June 2, 2017—-The United States has been a world leader for decades in the effort to take action to slow or stop the warming of planet Earth. In 1992 a United Nations conference know as the Earth Summit was held in Rio de Janeiro, Brazil. At that conference the United Nations Framework Convention on Climate Change was adapted. The United States played a key role in that conference, where the to reduction of emissions from greenhouse gases was initiated.

Negotiations were held in Kyoto, Japan in the fall of 1997. Opposition to the Protocol by the corporate world was so great that the negotiations nearly collapsed. Representatives of the United States pleaded for adaption. Then vice President Al Gore led the fight for adoption. The supporter of the document won. The treaty finally came into full force in 2005 when enough countries satisfied the criteria necessary for adaptation.

Melting of the Arctic

The Arctic sea ice is melting at a record rate.

The United States became a leading proponent of the Paris Climate agreement of 2015. The agreement will greatly reduce the emission of greenhouse gases in the years ahead. It was agreed to by almost every country in the world.

Shredding America’s Leadership on Climate Change

America’s leadership in taking action on climate change may be shredded. The GOP now controls the federal government and most state governments. Their position is that profits are more important than people. Greed is the primary ethic driving this policy.

The newly elected president has laid out extensive plans that will essentially prevent any action from being taken to reduce the risk of climate change if it will affect corporate profits. First and foremost the president has repeatedly stated that he would withdraw the United States participation in the Paris Climate agreement. As a major producer of these gases the decision to withdraw from the agreement spits in the face of every other country and every individual living on the planet. His stance on the agreement was a major topic at the Group of Seven (G7) meetings in Taormina, Italy this past month. The group of seven includes Britain, Canada, France, Germany, Italy, and japan in addition to the United States.

Fossil Fuels

Coal and Oil Formation

Since the United States is the second leading country in the production of greenhouse gases, it would severely reduce the importance of the agreement. It is second only to China which has signed onto the agreement. Many very important persons on the international scene have encouraged President Trump to keep this country in the agreement. The first on the current trip to admonish Trump on the environment was the Pope, who gave Trump a copy of his encyclical on the environment. Others that made a strong case for the US staying in the agreement were major players in the European Union.

Effects on People, the Environment, and the International Status of our Country

What the United States does on this issue is of global importance since we are such a large consumer of energy and source of greenhouse gas emissions. At the time of this writing it is unclear what decision the President will make. He can stay with his plan to withdraw us from the world agreement in favor of profits, he can keep us in the agreement and lower our goals for cutting greenhouse gases, or he can decide to keep this country in tune with the rest of the world and honor our pledge to do something about global warming and climate change. If he decides on the latter it will at least do two things. One, announce to the world that profits for American corporations are the number one goal of his administration, and two, decide to further tarnish our image and trust by the rest of the world!

Do your part in reducing CO2!