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The demise of American offshore wind

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Europe has 37 gigawatts of offshore wind capacity. China is catching up rapidly.  Across the globe, offshore wind is an increasingly important source of clean, renewable power.  The United States had previously set ambitious goals to join the international effort.  But in the aftermath of the 2024 election, offshore wind in the US is basically dead in the water, pun intended.

The Bureau of Ocean Energy Management announced at the end of July that it is rescinding all designated Wind Energy Areas on the U.S. Outer Continental Shelf, effectively ending all offshore wind development across the Gulf of Mexico, the Gulf of Maine, the New York Bight, California, Oregon, and the Central Atlantic.  Additional policy measures announced by the Department of the Interior ended special treatment for what it called “unreliable energy sources, such as wind.” 

The two significant offshore wind projects underway in the US are both under serious attack by the administration and by newly emboldened special interests.  Vineyard Wind in Massachusetts, with 17 turbines already in operation, is under assault by tourist town forces and fishing groups.  Empire Wind, in New York, which resumed construction after efforts by Governor Kathy Hochul, is under pressure by various special interest groups that are urging President Trump to halt the project.

The current administration has very public and very pronounced antipathy towards wind power in general and towards offshore wind in particular.  And this has brought to a rapid halt billions of dollars in investments and will eliminate tens of thousands of jobs.

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US offshore wind, long ‘dead,’ now really dead

Photo, posted September 15, 2016, courtesy of Lars Plougmann via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Geothermal energy may be safe

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The Trump Administration is outwardly hostile to renewable energy, especially solar and wind power.  Federal support for these energy sources that are by far the most rapidly growing energy sources across the globe is being gutted while fossil fuels are being propped up.

There is also renewed enthusiasm for nuclear power and, somewhat surprisingly, geothermal heat.   Geothermal is a renewable and clean energy source that has long been mostly overlooked and underfunded.  The main reasons are its expense and the fact that its large-scale use is unproven. 

Historically, geothermal energy has relied upon naturally occurring features such as hot springs and shallow underground heat sources.  However, technological breakthroughs that began in 2013 have led to enhanced geothermal systems, or EGS.  EGS makes use of the fact that if you drill deep enough into the earth pretty much anywhere, you will encounter substantial amounts of heat.  EGS plants pump water three miles down or more where it encounters rock that reaches over 500 degrees.  The piping hot water is then brought to the surface where it spins turbines to generate electricity.

Several companies are developing EGS in the U.S.  financed by tech companies seeking power for their AI activities, the Defense Department, and even by fossil fuel companies who use comparable drilling technology for fracking.

The so-called Big Beautiful Bill passed by Congress in July that eliminates tax credits for wind and solar energy preserves tax credits for geothermal projects.

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Why U.S. Geothermal May Advance, Despite Political Headwinds

Photo, posted September 30, 2019, courtesy of Stephen D Strowes via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

The world is warming and it’s happening faster

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This summer has already seen unprecedented heat in many places.  It started with a record-breaking heat dome in June in the United States.  Alaska had its first-ever heat advisory that month.  Europe has seen triple-digit temperatures in cities like Paris, Madrid, and Rome and even in places like Austria, Sarjevo, Bulgaria, Croatia, and Serbia.  On June 28th, a temperature of 96.8 degrees was measured in Biasca, Switzerland.

According to the latest report by the Intergovernmental Panel on Climate Change, the world is getting hotter, faster.  Human-caused global warming is now increasing by 0.27 degrees Celsius per decade.  That rate was recorded at 0.2 degrees in the 1970s and has been increasing ever since.

Climate scientists have long predicted that the rate of warming in the atmosphere would speed up, which has been evident from measurements for quite a while.  But now, these trends that have mostly been seen in charts and graphs are playing a growing role in people’s lives.

Each increase in the global mean temperature brings about a relatively larger increase in atmospheric extremes that include powerful downpours and severe droughts and wildfires.  According to climate models, extreme rainfall intensifies by 7% with each degree Celsius of atmospheric warming.  But recent data indicates that such record-shattering events are increasing at double that rate.

The current US administration may not accept the reality of the changing climate, but the planet really doesn’t care what it believes.

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The World Is Warming Up. And It’s Happening Faster.

Photo, posted August 28, 2013, courtesy of Tadas Balčiūnas via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

It’s only getting warmer

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Climate science is not popular with the current administration.  Phrases like “climate crisis”, “clean energy”, and “climate science” itself are prohibited from websites, reports, regulations, and other communications by government employees and federal funding recipients.  Once again, the United States is turning away from climate mitigation efforts and will have a drastically reduced ability to forecast disasters and head off their worst consequences.

Meanwhile, global warming continues, and the planet can’t withdraw from its consequences.

The hottest year in nearly two centuries was recorded in 2024.  According to a new report by the World Meteorological Organization, there is an 80% chance that at least one year over the next four will surpass 2024 as the warmest year on record. 

The consequences of warming will probably vary widely across the world.  But likely occurrences include rapid thawing of Arctic Sea ice, drier seasons in the Amazon, excess rain in places like Alaska, northern Europe, and the Sahel in north-central Africa.  Hotter temperatures lead to more evaporation of water from plants and soil, leading to droughts and failed crop seasons.  The warmer atmosphere holds more moisture, which increases the chance of flooding from downpours and stronger hurricanes.

Ignoring what is going on with the climate or thinking that it will only impact other people in other places is nothing short of foolhardy.  The planet does not care about politics.  What is happening to the climate will be in just about everyone’s backyard soon enough.

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‘It’s pretty bleak’: A warming planet is poised to get even hotter, forecasters warn

Photo, posted December 1, 2015, courtesy of Adam Matsumoto via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Americans breathe unhealthy air

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According to the American Lung Association’s annual State of the Air report, at least 156 million Americans – 46% of the population – live with unsafe levels of ozone, particulate pollution, or both.

The report analyzed ozone and particulate pollution levels between 2021 and 2023, during which the worst wildfire season on record took place in Canada.  The report ranked pollution levels in counties and cities across the country on a grading scale from A to F.  At least 156 million people live with air that got the poorest grade of F for at least one of three pollutants.   At least 42 million people live in counties that failed all three pollutant standards measured.

While the report attempts to provide a complete picture of air quality around the country, about two-thirds of counties lack air quality monitoring for ozone or particulate pollution. 

The wildfires in Canada are responsible for much of the increase in air pollution in the past several years.  However, climate projections suggest that the conditions that fueled those fires are likely to become increasingly common.

Air quality standards in the United States have generally been improving since the Clean Air Act was enacted by Congress in 1970.  Since that time, levels of key pollutants have dropped by nearly 80%.  But millions of Americans are still breathing polluted air, leading to both acute and chronic health conditions.

Plans by the Trump administration to loosen environmental regulations and cut funding for air quality research are likely to only make matters worse.

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Almost Half of Americans Breathe Unhealthy Air, Report Finds

Photo, posted June 8, 2023, courtesy of Anthony Quintano via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Soaring coffee prices

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Wholesale coffee prices hit record highs in the midst of the Trump administration’s deportation and tariff dispute with Colombia.  But coffee prices have already been trading near 50-year highs for a while as a result of shortages related to extreme weather and increased global demand.

In recent years, repeated droughts and flooding have put pressure on the global supply of coffee.  These climate swings have caused prices to soar, much as they have for other staples like cocoa, olive oil, and orange juice.  All the while, the global demand for coffee has kept rising.

Coffee is one of the world’s most consumed beverages, but it can be grown only under very specific conditions, namely in misty, humid, and tropical climates, and in rich soil free of disease.   The United States imports nearly all of its coffee – there is only a small amount grown in Hawaii.  Otherwise, the US is the world’s largest coffee importer.  With a limited number of sources for the beans, global coffee prices are very susceptible to the effects of extreme weather.

More than half of the world’s coffee production comes from arabica beans, and Brazil is the largest exporter.  A severe drought there this summer devastated the harvest that typically runs from May to September.   In Vietnam, a severe drought followed by heavy rains harmed the world’s largest source of robusta, the second most popular coffee variety.

People tend to think of coffee as a commodity and not so much as an agricultural product, subject to the vagaries of weather and having prices that fluctuate accordingly.  The bottom line is that drinking coffee is likely to become a bigger strain on one’s own bottom line.

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Why Coffee Prices Are Soaring (Again)

Photo, posted October 13, 2023, courtesy of Pete via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Empire Wind moves forward

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Empire Wind 1, the first offshore wind project that will connect to the New York City grid, has received the financing needed to move forward.  Equinor, the Norwegian state-owned multinational energy company developing the project, closed on a more than $3 billion financing package.

The wind farm will span 80,000 acres in an area 15-30 miles southeast of Long Island.  When completed, it will have a capacity of 810 megawatts.  Equinor has executed a Purchase and Sale Agreement with the New York State Energy Research and Development Authority to purchase power from Empire Wind 1 for 25 years at a strike price of $155/MWh. The operations and maintenance hub for Empire Wind 1 will be at the South Brooklyn Marine Terminal.  Commercial operation is expected by 2027.

The previously-planned Empire Wind 2 project was terminated a year ago because of inflation, interest rates, and supply chain disruptions.  More broadly, the U.S. offshore wind industry has been struggling for the past year. 

With the return of President Donald Trump to the White House, there is much greater uncertainty facing the industry.  As a result of the election, Attentive Energy, a planned 3-gigawatt wind project off the coasts of New York and New Jersey has been put on pause.  Trump’s public disdain for offshore wind energy is likely to create a major slowdown in the growth of the offshore wind pipeline.  On the other hand, the new administration is less likely to have much influence on projects already in progress including 4 gigawatts under active construction and more than 50 gigawatts in other stages of development.

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Empire Wind 1 secures $3B+ financing package, enters ‘full execution mode’

Photo, posted May 2, 2022, courtesy of California Energy Commission via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Protecting New York City From Flooding | Earth Wise

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Hurricane Sandy flooded Lower Manhattan in October 2012, closing Wall Street, blacking out power for 250,000 people, and killing 44 New Yorkers.  Within a year, plans were in motion to build berms, floodwalls, and water gates along the city’s Lower East Side in a $770 million first phase of an overall plan to defend New York City from future floodwaters.

Plans got more and more complicated, and the price tag reached $1.45 billion before the existing plan was scrapped by former Mayor Bill de Blasio’s administration in 2018 without involving the community groups that were instrumental in creating the original plan.  After years of lawsuits and court actions, the revised East Side Coastal Resiliency Project is finally proceeding, now at a price tag approaching $3 billion. The project will include 18 moveable floodgates and will protect 110,000 New Yorkers, including 28,000 low-income public-housing residents and is expected to be completed in 2026.

The original larger overall plan was halted in 2020 after former President Trump mocked it and claimed that it would cost $200 billion.  The current plan, created by the U.S. Army Corps of Engineers and known as the 3B alternative, calls for a combination of deployable flood barriers, floodwalls, seawalls, and elevated promenades wrapping around the lower part of Manhattan.  The cost of the project is estimated to be $61 billion. 

In the meantime, over 10 years after Sandy, a similar storm would have almost the same effect today as Sandy had back then.

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New York City Begins Its Climate Change Reckoning on the Lower East Side, the Hard Way

Photo, posted January 19, 2013 courtesy of Andres Alvarado via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Restoring Environmental Rules Will Take Time | Earth Wise

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Over the previous four years, the Trump administration weakened or rolled back more than 100 rules and regulations on air, water, public lands, endangered species, and climate change.  The Biden administration has vowed to review these changes and restore the environmental protections that were removed or weakened.

The process of restoring environmental protections generally fall into a few broad categories.  Some changes can happen by executive order.  The President can cancel individual fossil fuel infrastructure projects or reinstate federal protection of specific places.  On his first day in office, President Biden rescinded the construction permit for the Keystone XL pipeline.

The President is also expected to restore federal protection to the Bears Ears and Grand Staircase-Escalante national monuments in Utah, which the Trump administration opened up to mining, logging, and drilling.

However, it could take two years or more to restore Obama-era climate change regulations including limits on emissions, rules on industrial emissions of toxic pollutants such as mercury, and protections on wetlands and waterways.

Reinstating comprehensive regulations on air, water, and climate pollution will take years because the Trump administration, rather than eliminating rules entirely, often replaced them with weaker regulations.  Replacing the weak regulations cannot just happen by executive order.  The process involves scientific and economic analysis, and that takes time.

After four years of shrinking budget and shrinking staff, the Environmental Protection Agency has a lot of catching up to do and will need to prioritize its actions in order to deal with the most damaging consequences of the previous administration.

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Restoring Environmental Rules Rolled Back by Trump Could Take Years

Photo, posted September 25, 2012, courtesy of Tar Sands Blockade via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Drilling Rights In The Arctic National Wildlife Refuge | Earth Wise

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The battle to prevent oil and gas drilling rights from being sold in the Arctic National Wildlife Refuge in Alaska has been going on for 40 years.  The Trump administration spent nearly four years pushing to auction off those drilling rights and finally accomplished it in early January.

The ANWR was created in 1960 and is the largest intact wilderness in the U.S., covering nearly 30,000 square miles in Alaska.  It is an important breeding habitat for polar bears as well as the home of more than 200 other species including caribou, arctic foxes, golden eagles, and snowy owls.  Parts of it are also sacred ground for the indigenous Gwich’in people.

The auction carved out a 5% slice of the refuge for leases and proponents anticipated it would generate billions of dollars in revenues that would offset tax cuts in Alaska.

Of the 22 parcels of land offered, totaling 1.1 million acres, only 12 were bid on at all and the state of Alaska was the sole bidder on 9 of those.  In total, the auction raised a paltry $14 million. 

Whether the remarkable absence of interest was due to a lack of infrastructure or roads around the region, the decline of fossil fuel investments and use during the pandemic, or the anticipation that any leases would be the subject of endless legal battles by indigenous tribes and environmental activists, the net result was that the auction was basically a flop.

President Biden has stated that he is entirely against Arctic drilling, so the new administration is likely to try to repeal or interfere with any drilling leases or other industrial activity in the ANWR. 

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Arctic Oil Drilling Plans Suffer ‘Stunning Setback’ as Almost ‘No One Shows Up’ For the Sale

Photo, posted July 3, 2019, courtesy of Alaska Region U.S. Fish and Wildlife Service via Flickr. Photo Credit: Danielle Brigida/ USFWS

Earth Wise is a production of WAMC Northeast Public Radio.

Do Forests Grow Better With Our Help? | Earth Wise

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Tree planting has become a worldwide cause.  International calls to plant a trillion trees to combat climate change have led to multiple initiatives by countries around the world.  Even the current U.S. administration, with support from businesses and nonprofits has promised to plant over 800 million trees across an estimated 2.8 million acres.  Planting trees is widely seen to be a vital nature-based solution to climate change; a way of moderating its effects as the world works to reduce carbon emissions.  However, recent studies have created some pushback from that view.

The new studies are not opposed to trees.  What they have revealed is that allowing forests to grow back naturally is a better strategy than planting trees.  The new data has shown that, among other things, estimates of the rate of carbon accumulation by natural forest regrowth have on average been 32% too low and, for tropical forests, have been 53% too low.

A new study published in Nature identified 1.67 billion acres that could be set aside to allow trees to regrow.  It excludes land under cultivation or built on, along with various existing valuable ecosystems. 

Natural regrowth allows nature to select which tree species take hold and turns out to happen quite rapidly and in a widespread manner.  The great thing about natural restoration of forests is that it often requires nothing more than human inaction.  Because it requires no policy initiatives, investments, or oversight, data on its extent is rather scarce.  But the data we have reveals that wherever forests have been allowed to recover on their own, it appears to happen rapidly and with great success.

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Natural Debate: Do Forests Grow Better With Our Help or Without?

Photo, posted September 5, 2015, courtesy of Nicholas A. Tonelli via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Environmental Injustice And the Coronavirus | Earth Wise

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Cities and towns across the United States continue to wrestle with the devastating impacts of the COVID-19 pandemic and none have been hit harder than low-income and minority communities.  Places like Detroit, Chicago, and St. James Parish in Louisiana have suffered from decades of economic inequality and pollution in their poorest neighborhoods and many of these same places have experienced some of the highest mortality rates from the virus.

Recent studies have shown a link between high levels of pollution and the risk of death from COVID-19.  Pollution of various kinds are higher in low-income communities and communities of color.  Such communities don’t have a strong political voice so that laws and environmental regulations are not enforced like there are in white, higher-income communities.  Thus, these communities have highways, landfills, factories, chemical facilities, paper mills, and other pollution sources that communities with economic power – and therefore political power – manage to avoid.

People living in low-income communities and communities of color tend to have higher rates of underlying health conditions like diabetes, heart disease, and asthma.  They have less healthy diets – more fast food and fewer grocery stores.  Part of the reason these communities have a higher risk of mortality from COVID-19 infection is that many people have reduced lung capacity as a result of exposure to pollutants.

The Trump administration has been suspending enforcement of environmental regulations during the pandemic.  Communities already affected by environmental injustice will bear the brunt of this decision.  Groups like nursing home populations, meat packers, prisoners and the poor are suddenly highly visible.  COVID-19 is exposing the real differences between the Haves and the Have-Nots in this country.

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Connecting the Dots Between Environmental Injustice and the Coronavirus

Photo, posted May 2, 2006, courtesy of Sean Benham via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

A Victory For Clean Water | Earth Wise

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Many of the nation’s environmental laws are under siege from the current administration, but a recent decision by the U.S. Supreme Court has solidified the Clean Water Act’s place as one of the country’s most effective environmental laws.

The case in question was about whether a wastewater treatment plant in Maui has been violating the Clean Water Act by polluting the ocean indirectly through groundwater.  Since the 1980s, the Lahaina wastewater treatment facility has been discharging millions of gallons of treated sewage each day into groundwater that reaches the waters off of Kahekili Beach, which is a popular snorkeling spot.   Groundwater, like any water beneath the land’s surface, can flow into major waterways such as rivers, streams, and, in this case, the ocean. 

In 2012, the nonprofit Earthjustice sued Maui county on behalf of four Maui community groups. Over the years, the Hawaii district court and the 9th Circuit appeals court ruled in favor of Earthjustice.  Last year, Maui County successfully petitioned the U.S. Supreme court to hear the case, which could have endangered the Clean Water Act.

On April 23, by a 6-3 vote, the court ruled that point source discharges to navigable waters through groundwater are regulated by the Clean Water Act when the addition of pollutants through groundwater is the functional equivalent of a direct discharge into navigable waters.

With this ruling, the Court rejected the Trump administration’s polluter-friendly position in the clearest of terms.  According to the opinion, written by Justice Breyer, the Court could not see how Congress could have intended to create such a large and obvious loophole in one of the key innovations of the Clean Water Act.  This is a victory for clean water.

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The Clean Water Case of the Century

Photo, posted June 30, 2018, courtesy of Kirt Edblom via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Coal Isn’t Even Cheap Anymore

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Coal has historically been very cheap compared with many other energy sources and the reason is that it is so plentiful.  The United States has especially abundant quantities of the stuff – perhaps a quarter of the world’s estimated recoverable reserves.  Estimates are that at the rate at which we are currently using coal here, the remaining reserves would last about 325 years. 

That would be great, of course, if the use of coal was not relentlessly destructive to the environment, hazardous to human health, and a major driver for global warming.  Despite all of that, the Trump administration is a big booster of coal.

But coal has little chance of holding on to its current status, much less having some kind of renaissance.  According to a new report from renewables analysis firm Energy Innovation, nearly 75% of coal-fired power plants in the United States generate electricity that is more expensive than local wind and solar resources.   Wind power, in particular, can at times provide electricity at half the cost of coal.

Wind and solar power are growing by leaps and bounds.  The Guardian reported that by 2025, enough wind and solar power will be generated at low enough prices in the U.S. that it could replace 86% of the entire U.S. coal fleet with lower-cost electricity.

It has been known for some time that there are places where the so-called coal crossover has already taken place.   But this is actually far more widespread than previously thought.  Substantial coal capacity is currently at risk in North Carolina, Florida, Georgia and Texas.  By 2025, Indiana, Michigan, Ohio, and Wisconsin will join their ranks.

The biggest threat to coal is not regulators or environmentalists; it is economics.

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Renewables Cheaper Than 75 Percent of U.S. Coal Fleet, Report Finds

Photo, posted May 1, 2011, courtesy of Alan Stark via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

A Quiet Clean Energy Revolution

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While the Trump administration seeks to prop up and promote use of fossil fuels, the country continues to move in the opposite direction.  Last year was actually a pretty positive year for clean energy in the U.S.

In terms of public opinion, 70% of Americans surveyed believe the country should produce 100% of its electricity from renewable energy sources and more than half of survey respondents think renewables are a good idea even if they raise energy bills.

Companies in the U.S. purchased a record 6.43 gigawatts of renewable power, enough to power 1.5 million homes.  The number of corporations entering into renewable energy deals doubled last year.

More than 300 U.S. cities, towns or counties have made commitments to climate action and, as of November, 99 cities have committed to 100% renewable energy, doubling the total from a year ago.

A number of gubernatorial candidates running on ambitious renewable energy platforms were elected in November including those in Illinois, Colorado, New Mexico, Maine and Nevada.

Utilities are responding to the growing demand for clean energy.  Consumers Energy in Michigan plans to cut carbon emissions by 80% and stop using coal.  Iowa-based MidAmerican Energy will become the first U.S. utility to source 100% of its electricity from renewable sources next year.  Xcel Energy, one of the biggest utilities in the country, has committed to be 80% carbon-free by 2030 and go completely carbon-free by 2050.

The fossil fuel industry with its supporters in high places is still kicking and screaming, but there is no doubt that the U.S. energy system is changing, and the quiet clean energy revolution will only pick up more steam in 2019.

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The US Underwent a Quiet Clean Energy Revolution Last Year

Photo, posted August 15, 2009, courtesy of Ken via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Wildlife And The Border Wall

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The border between the United States and Mexico is nearly 2,000 miles long, stretching from San Ysidro, California to Brownsville, Texas.  Discontinuous barriers currently cover approximately 650 miles of our southern border. As the particulars of how to better secure the remaining 1,350 miles of border are worked out, one thing is abundantly clear: extending physical barriers would negatively impact wildlife and the environment.

The Trump Administration has called for a 1,000-mile wall, which would cut across land that includes important habitats for wildlife.  According to an article signed by nearly 3,000 scientists, this plan would “threaten some of the continent’s most biologically diverse regions” by inhibiting species movement and triggering flooding. The paper, which was published in the journal Bioscience, highlights how more than 1,500 native animal and plant species would be affected by the wall, including 62 that are listed as endangered or vulnerable.

An extended border wall would not only impede movement of many wildlife species but it would also put pressure on creatures already in peril, such as the Mexican gray wolf and the Sonoran pronghorn.  Other at risk animals include the ocelot, black bear, and desert bighorn sheep. 

According to researchers, extending the border wall could cause problems for low-flying birds and insects. Even plants, including the endangered wildflower Zapata bladderpod and the threatened whiskerbush cactus, are particularly at risk.

According to a 2011 study, bird-watching and other forms of ecotourism in the Lower Rio Grande Valley brought in more than $344 million in economic activity and approximately 4,400 jobs. 

Preserving our natural heritage must be part of this national security discussion. 

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Nature Divided, Scientists United: US–Mexico Border Wall Threatens Biodiversity and Binational Conservation

Photo, posted December 14, 2014, courtesy of Tony Webster via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

The Fight For Greener Cars

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U.S. automakers have always been reluctant partners in the nation’s efforts to reduce air pollution and improve fuel efficiency. There have been struggles for decades between the carmakers and the government in setting Corporate Average Fuel Economy (or CAFÉ) standards.  During the Obama administration, some of the most demanding fuel economy and emissions standards were mandated.

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Another CO2 Milestone

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The global concentration of carbon dioxide in the atmosphere was measured at 400 parts per million for the first time in recorded history in May of 2013.  It was a brief event at the Mauna Loa Observatory in Hawaii at the time.  Within the next couple of years, however, readings of at least 400 ppm became standard.

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A Giant Wind Farm for Oklahoma

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American Electric Power (AEP) is investing $4.5 billion to build the largest wind farm in the United States at a site in the Oklahoma panhandle.  Known as the Wind Catcher Energy Connection, the 2-gigawatt wind project will include 800 2.5-megawatt wind turbines built by General Electric.

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