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Earth Wise

Dirty Air In The National Parks

August 27, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-27-18-Dirty-Air-in-National-Parks.mp3

Our national parks are supposed to be places that allow us to commune with nature.  They offer incredible vistas and amazing sights.  As a result, millions of Americans and visitors from around the world are drawn to these places – too many millions, in fact.

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Global Warming And Air Conditioners

August 24, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-24-18-Global-Warming-and-Air-Conditioners.mp3

All those record high temperatures around the world this summer – such as during the unprecedented heatwave in Japan – put the spotlight on the growing dependence we all have on air conditioning. 

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Greener Concrete

August 23, 2018 By EarthWise 1 Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-23-18-Greener-Concrete.mp3

The battle to reduce carbon emissions is heavily focused on electricity generation, transportation, buildings, and agriculture, which collectively account for more than 75% of the total.  However, there are other sources of carbon emissions that cannot be ignored.  Among industrial activities, the production of cement is responsible for 7% of industrial energy use and is the second largest industrial emitter of carbon dioxide.  Making cement accounts for about 7% of global emissions.

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Drought In Europe

August 22, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-22-18-Drought-in-Europe.mp3

Even as Californians fought giant wildfires and Japan struggled with record high temperatures, the unusual summer heat in central and northern Europe has led to the worst drought conditions in over 40 years.

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Cleaning Up Shipping Fuel

August 21, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-21-18-Cleaning-Up-Shipping-Fuel.mp3

Cargo ships are significant sources of global air pollution because of their fuel oil.  Most ships burn something called “bunker fuel” which is a pitch-black, molasses-thick fuel made from the dregs of the oil refining process.  It is loaded with sulfur, so when it is burned it produces noxious gases and fine particles that can harm human health and the environment.  Because bunker fuel is made from petroleum refining residues, waste byproducts sometimes end up in the mix, making the stuff even a worse source of pollution.

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A Battle For The Automobile Fuel Business

August 20, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-20-18-Battle-for-the-Automobile-Business.mp3

Energy giant BP predicts that electric vehicle sales will increase by an incredible 8,800 percent between now and 2040.  That creates a major business opportunity for oil companies as well as a real problem because demand for gasoline and diesel is destined to slow.

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Clean Power Is Not Enough

August 17, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-17-18-Clean-Power-is-Not-Enough.mp3

A recent study published in Nature Climate Change looked at what emission reductions are needed to meet the climate targets of the Paris Accords.  The results are sobering.

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Feeding Seaweed To Cows

August 16, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-16-18-Feeding-Seaweed-to-Cows.mp3

Methane emissions are a real problem.  As a greenhouse gas, methane has at least 25 times the heat-trapping power of carbon dioxide.  More than a third of all the methane that humans are responsible for putting into the atmosphere comes from domestic livestock:  cattle, sheep, goats and buffalo.  In California alone, dairy cows along with a smaller number of beef cattle emit the heat trapping equivalent of the emissions from 2.5 million cars.

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A Small Win For Coral

August 15, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-15-18-A-Small-Win-for-Coral.mp3

The Belize Barrier Reef is the largest barrier reef system in the Northern Hemisphere.  It extends roughly 200 miles, and is made up of a series of coral reefs, cays and islands, many of which are covered with mangroves. It was designated a Unesco World Heritage Site in 1996, and added to its endangered list in 2009.  

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Urban Streams Are Breeding Superbugs

August 14, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-14-18-Urban-Streams.mp3

City streams are subjected to a constant onslaught of synthetic chemicals found in pharmaceuticals and personal care products. Wastewater treatment facilities are not designed to filter out these compounds. Instead, they flow into surface waters where they impact aquatic organisms like microbes – which perform key ecosystem services like removing excess nutrients and breaking down leaf litter.

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A New Catalyst For Splitting Water

August 13, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-13-18-New-Catalyst-for-Splitting-Water.mp3

Hydrogen is widely considered to be a desirable source of clean energy.  It can be used in fuel cells to power electric motors in cars or can be burned directly in internal combustion engines.   If it is compressed or converted to liquid, it can be efficiently stored and transported.  Most of all, when it is used as an energy source, the only emission it produces is water.

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Progress On Plastic Straws

August 10, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-10-18-Progress-on-Plastic-Straws.mp3

Earlier this year we talked about the contributions of plastic straws to the global problem of plastic waste.  Americans throw away an astounding 500 million straws a day.  But global campaigns to reduce the use of plastic straws are starting to make real headway.

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Air Pollution And Diabetes

August 9, 2018 By EarthWise 3 Comments

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-09-18-Air-Pollution-and-Diabetes.mp3

Air pollution is deadly.  Studies have found that fine particulate matter, such as airborne pieces of dust, dirt, smoke, soot, and other microscopic particles can enter our lungs and bloodstream, contributing to major health conditions such as heart disease, stroke, cancer, and kidney disease.

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How Much Cleaner Is Natural Gas?

August 8, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-08-18-How-Much-Cleaner-Is-Natural-Gas.mp3

The ascendance of natural gas over coal during the past decade has been driven primarily by fracking technology that has provided large quantities of the stuff at low prices.  But beyond that, there are environmental issues as well.  Natural gas emits 50 to 60% less carbon dioxide when combusted in a new, efficient natural gas power plant compared with emission from a typical new coal plant.  It appears to be a win-win situation.

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Labeling Genetically Engineered Foods

August 7, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-07-18-Labeling-GE-Foods.mp3

There has been a great deal of debate over mandating labels for genetically engineered foods.  On the pro side, people argue that they have a right to know whether what they are eating contains GMO – or as they are also called GE — ingredients.  On the con side, people argue that the aversion toward GE is unfounded and that labeling foods will simply drive away consumers undeservedly.

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Greenhouse Emissions And Food Choices

August 6, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-08-06-18-Greenhouse-Emissions-and-Food-Choices.mp3

Changes in diet have often been proposed as a way to reduce overall greenhouse gas emissions.  However, there has not been much research about the affordability and feasibility of such changes.

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The Future Of Energy

August 3, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-03-18-The-Future-of-Energy.mp3

A new report by Bloomberg New Energy Finance takes a long-term look at the world’s energy production.  According to the report, renewable energy, mostly in the form of solar and wind power, is set to provide close to 50% of the world’s energy by the year 2050.

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Greenhouses Adapt To Climate Change

August 2, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-08-02-18-Greenhouses-Adapt-to-Climate-Change.mp3

The Telangana region of India has struggled with extreme weather patterns attributed to climate change.  Extended periods of drought, heatwaves, and unpredictable heavy rainfalls have led to crop failures, mounting debt, and a heavy human toll.  More than 3,000 farmers committed suicide in Telangana during a three-year drought.

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Salt Cocktails Compromise Freshwater

August 1, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-01-18-Salt-Cocktails.mp3

Human activities are exposing US rivers and streams to a cocktail of salts, with consequences for infrastructure and drinking water supplies. Road salt, fertilizers, and mining waste – as well as natural weathering of concrete, rocks, and soils – all contribute to increased salt in waterways. When these different salt compounds combine, their harmful effects can amplify.

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Increasing Antarctic Ice Loss

July 31, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-07-31-18-Increasing-Antarctic-Ice-Loss.mp3

Antarctica’s ice sheets contain enough frozen water to raise sea levels globally about 190 feet.  Ice in the Antarctic is melting at a record-breaking rate and subsequent sea rises could have catastrophic consequences around the world.  So, it is no surprise that scientists have been closely tracking ice loss in recent decades to understand both the current and future impacts of climate change.

[Read more…] about Increasing Antarctic Ice Loss

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