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The cicadas are coming

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After hiding underground for the last 17 years, billions of cicadas are taking to the skies this summer.  This batch of insects, known as Brood XIV, will cover more of the U.S. than any other 17-year brood.  New York and at least 13 other states – Georgia, Kentucky, Maryland, Massachusetts, New Jersey, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, and parts of Indiana are being serenaded by the sound of cicadas in May and June.

There are 15 broods of periodical cicadas that emerge every 13 or 17 years.  They come out when soil temperatures reach 64 degrees.  Around the world there are annual cicadas while periodical cicadas can only be found in the eastern United States.

Once the insects emerge, they will issue their noisy, chirping mating calls for just a few weeks before they lay eggs and die.  The offspring from the eggs will burrow underground and remain dormant or in the nymph stage feeding on tree roots for another 17 years.  Surfacing in vast numbers is a way to overwhelm predators and ensure that at least some cicadas survive to reproduce. 

The emergence of these insects provides a bounty of food to squirrels, lizards, birds, and other creatures.  A study found that once cicadas emerge, the population of cuckoos, blue jays, and red-bellied woodpeckers grows.

As the climate changes, the timing of cicada cycles may also change.  Warmer weather will lead to cicadas emerging earlier in the year.  Eventually, even the time they spend underground may shorten.

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After 17 Years Underground, Massive Cicada Brood to Swarm U.S.

Photo, posted July 16, 2017, courtesy of Renee Grayson via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Pollution in downwind states

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Air pollution is a serious health threat.  It is associated with asthma and can lead to chronic disease, cancer, and premature death.  Globally, air pollution kills 7 to 9 million people, and 200,000 Americans die from it each year.

There are multiple sources of air pollution including automobiles, power plants, and other industrial activities.  Exposure to pollutants such as nitrogen oxide, sulfur dioxide, and particulate matter does not require living or working near their sources.  Winds can carry pollution great distances including across state lines.  

The Clean Air Act included the EPA’s “Good Neighbor Plan”, which requires “upwind” states to implement plans to reduce emissions from power plants and other industrial sources.  However, three states – Indiana, Ohio, and West Virginia – along with various industrial companies and trade organizations sued the EPA when it tried to enforce these plans.  A recent Supreme Court decision to block a federal rule curbing interstate air pollution further complicates efforts to reduce emissions.

As a result, there is a disproportionate burden on downwind states.  They face major challenges in demonstrating and attributing air pollution to sources across state lines and pursuing legal actions to get the EPA to address their problems.

A recent study by the University of Notre Dame looking at all the complex issues related to interstate pollution underscored how the regulatory system continues to be hamstrung when attempting to address a serious threat to human health and the environment.

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Downwind states face disproportionate burden of air pollution

Photo, posted February 19, 2021, courtesy of David Wilson via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Hydrogen hubs

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The Infrastructure Investment and Jobs Act of 2021 earmarked $7 billion in federal funding aimed at accelerating the commercial-scale deployment of hydrogen as well as driving down its cost.  Clean hydrogen is considered to be a key technology for cleaning up hard-to-decarbonize industrial sectors like refining, chemicals, and heavy-duty transport. 

On October 13th, the Department of Energy named seven regional clean hydrogen hubs which will provide clean hydrogen production, storage, delivery, and end-use components.  The so-called H2Hubs are expected to collectively produce three million metric tons of hydrogen annually. 

One selected project is the Appalachian Hydrogen Hub that includes West Virginia, Ohio, Kentucky, and Pennsylvania.  Another is the California Hydrogen Hub, that will produce hydrogen exclusively from renewable energy and biomass.  Then there is the Gulf Coast Hydrogen Hub, centered in the Houston, Texas region.  A fourth hub is the Heartland Hydrogen Hub, which includes Minnesota, North Dakota, and South Dakota.  A fifth hub is the Mid-Atlantic Hydrogen Hub, that includes Pennsylvania, Delaware, and New Jersey.  The sixth is the Midwest Hydrogen Hub that includes Illinois, Indiana, and Michigan.  Finally, there is the Pacific Northwest Hydrogen Hub that includes Washington, Oregon, and Montana.

Each of these hubs involve multiple partner organizations in their regions and each has specific goals and strategies. The seven centers are located all around the country and are intended to jumpstart a national network of clean hydrogen producers, consumers, and connective infrastructure.

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Hydrogen hubs have arrived. Here are the big winners of the $7 billion sweepstakes

Photo, posted August 17, 2010, courtesy of David Stanley via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

An Iron-Air Battery Plant | Earth Wise

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Lithium-ion batteries are the standard energy source for electric vehicles, and they are also the dominant technology for storing energy in the electric grid.  However, they are not the only game in town.  There are other battery technologies that have various potential advantages over lithium-ion and some of them are getting the chance to show what they can do.

One is the iron-air battery.  Unlike lithium-ion batteries that require expensive and strategically challenging materials like lithium, cobalt, nickel, and graphite, iron-air batteries make use of one of the most common elements in the earth’s crust.

Iron-air batteries operate on a principle known as “reversible rusting”.  When discharging, the battery takes in oxygen from the air and converts iron into rust.  While charging, electrical current converts rust back into iron and the battery releases oxygen.  Batteries consist of a slab of iron, a water-based electrolyte, and a membrane that feeds a controlled stream of air into the battery. 

A Massachusetts-based company called Form Energy is building a $760 million iron-air battery storage facility in the city of Weirton in West Virginia.  Investment financing along with a $290 million government incentive package is paying for the facility. 

The facility is designed to address the need for long-duration energy storage and will be capable of storing electricity for 100 hours at competitive prices.  The battery modules will be about the size of a side-by-side washer/dryer and will contain a stack of 50 3-foot-tall cells.  Such batteries are too big and heavy for use in cars but will be cheaper and higher-capacity than equivalent lithium-ion battery systems.

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Form Energy selects West Virginia for its first iron-air battery plant

Photo credit: Form Energy

Earth Wise is a production of WAMC Northeast Public Radio

More Plastic Pollution On The Way | Earth Wise

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Public concern about plastic pollution has been rising.  More and more of us are choosing reusable grocery bags, metal straws, and reusable water bottles.  We shake our heads at images of immense plastic garbage patches in the ocean. We see reports of birds with 15% of their body weight in plastic.

While all of this is going on, companies like ExxonMobil, Shell, and Saudi Aramco are ramping up production of plastic – which is mostly made from oil, gas, and their byproducts.  They are doing this as a hedge against the growing possibility that the global response to climate change will reduce demand for their fuels.  Plastics are part of the category called petrochemicals, which currently account for 14% of oil use.  Petrochemicals are expected to drive half of oil demand growth over the next 30 years.

The World Economic Forum predicts plastic production will double in the next 20 years.  The fracking boom in the United States has turned this country into a big growth area for plastic production.  Natural gas prices are low which is hurting profits at fracking operations.  But fracking also unearths ethane, which is a feedstock for plastic production.  So plastic is becoming a kind of subsidy for fracking.

The American petroleum industry’s hub has historically been the Gulf Coast of Texas and Louisiana as well as a stretch along the lower Mississippi River.  There is a slew of new projects there.  The industry is also seeking to create a new plastics corridor in Ohio, Pennsylvania, and West Virginia, where fracking wells are rich in ethane.

Society in general may be increasingly concerned about the impact of things like carbon emissions and plastic pollution, but the fossil fuel industry continues to focus entirely on growth and profits.

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The Plastics Pipeline: A Surge of New Production Is on the Way

Photo, posted January 10, 2015 , courtesy of Daniel Orth via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

An Upside Of Climate Change

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In contrast with most countries in the world, the main political factions in the United States have very different views of climate change.  Somehow, one side of the aisle remains skeptical about the changing climate even as temperature records are broken, arctic ice disappears, and powerful storms become increasingly common.

But putting aside the increasingly inexplicable political schism about climate change, there are instances where the consequences of the warming climate are not all dire.  In fact, there are places where climate change is having a positive effect.

One such place is West Virginia, where research studies are finding a real upside to the changing climate.

A recent study of the climate in West Virginia over the period from 1900 to 2016 found the maximum temperatures trended downward, average minimum temperatures ascended, and annual precipitation increased.  On average, West Virginians are now seeing cooler summers, warmer winters and wetter weather.

Given these changes, there have been big changes in agriculture.  Yields of important crops like hay, corn, winter wheat, and soybeans have all increased.  The winter season has shrunk by as much as 20 days and the growing season itself has increased by approximately 13 days.  A number of crops that historically did not fare well in West Virginia may now become viable.  It may even be possible to pursue double cropping, meaning that the longer growing season may allow farmers to raise one crop, harvest it, and then raise and harvest a second crop within the same year.

In the big picture, climate change is shaping up as a global calamity, but for a few people in certain places – such as West Virginia – it may have some real upside.

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The positive implications of…climate change? WVU researcher sees agricultural, food availability and economic possibilities

Photo, posted November 12, 2014, courtesy of Mike via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

The Changing Face of Electricity

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The New York Times recently published an article on how electricity is made in the United States on a state-by-state basis and how it has been changing over the past two decades.  Two conclusions to draw are that the mix of energy sources is wildly different from one state to another and that the mix has been changing rather dramatically in many places.

Overall, the past two decades have seen the dramatic rise in the use of natural gas and a dramatic drop in the use of coal.  Coal plants used to account for over half of the electricity produced in the U.S. at the turn of the 21st century.  Now natural gas has passed coal as the largest energy source at roughly 1/3 of the total generated.

Switching from coal to natural gas is a good thing since modern gas power plants emit only about half the carbon dioxide as modern coal plants.  But industry spin about “clean gas” is just spin.  Gas is not really clean; it is just cleaner than coal.  So, having the electric grid powered by gas is not really going to solve our emissions problems.

That being said, there are still states that make nearly all their electricity with coal.  Indiana, Kentucky, Missouri, Utah, Wyoming, and West Virginia are on that list.  Meanwhile, Delaware, Massachusetts, Mississippi, Nevada, and Rhode Island are powered mostly by gas. Idaho, Oregon, Washington, and Vermont rely heavily on hydropower.

Newer renewables like solar and wind are starting to make major contributions in many states.  Wind contributes only 6% nationwide but is much bigger in places like Iowa, Kansas, Minnesota, the Dakotas, Oklahoma and Texas. 

The face of electricity continues to change.

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How Does Your State Make Electricity?

Photo, posted March 5, 2010, courtesy of Tennessee Valley Authority via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

WAMC Northeast Public Radio

WAMC/Northeast Public Radio is a regional public radio network serving parts of seven northeastern states (more...)