coal

A Dirty SecretChina's greatest import: Carbon emissions

The U.S. and much of the Western world have a dirty secret.

While we claim to be working diligently to decrease our emissions and switch to cleaner, non-fossil fuel energies, we are actually just exporting emissions to other countries, most notably China. We don’t talk about it. We get on our soapboxes at international meetings and claim to be making great progress to halt ever-increasing carbon dioxide concentrations in the atmosphere. And we complain vociferously about developing countries — again, most notably China — not doing the same.

22 Nov 2010

Voices: Must we capture and store carbon from coal to meet emission-reduction targets?

Last Wednesday, Sens. John Kerry and Joe Lieberman unveiled a comprehensive energy bill (PDF) called the American Power Act. The central purpose of the proposed legislation (along with a similar bill passed by the House of Representatives in June 2009) is to significantly curb the nation’s carbon dioxide emissions.

18 May 2010

Voices: Natural gas can lead the way

Much of the debate concerning energy, climate and the economy involves how to manage the transition from fossil fuels to sustainable energy sources. In this context, it may seem ironic to promote one fossil fuel over another, but natural gas is an inexpensive, abundant and relatively clean fuel that can lead the transition away from coal and oil, while achieving significant reductions in greenhouse gas emissions and other pollutants over the next two decades. In short, increased use of domestic sources of natural gas needs to be an essential component of U.S. energy policy.

01 Feb 2010

Further reading and international collaborations

The growing interest in coal fires has led to the largest collection of peer-reviewed publications about this topic ever undertaken for publication, which includes the work of scientists and engineers around the world interested in peat, the precursor of coal, and peat fires. This project has resulted in a four-volume book, entitled “Coal and Peat Fires: A Global Perspective,” to be published later this year by Elsevier. It will include an interactive online world map of coal and peat fires.

01 Sep 2010

Who deals with coal fires?

Currently (and historically), most people who deal with underground coal fires and gob fires are employed by government agencies, mining and engineering companies, and firefighting agencies. Today, as in the past, these institutions undertake various responsibilities that include recording the location of coal fires, tracking their progression, and extinguishing the most problematic ones, if physically and economically feasible.

01 Sep 2010

The rising global interest in coal fires

In eastern India, north of the Damodar River, approximately 70 fires are burning in the Jharia coalfield, the largest coalmine fire complex in the world. The majority of fires in Jharia ignite when coal, exposed to air during mining operations, spontaneously combusts. Particulate matter and noxious gases emitted from the burning coal — including sulfur, carbon and nitrogen oxides, and hydrocarbons released at the surface from gas vents, ground fissures and the soil — have caused illnesses that range from stroke to chronic obstructive pulmonary disease.

01 Sep 2010

Hot as Hell: Firefighting foam heats up coal fire debate in Centralia, Pa.

By some accounts, Hell on Earth is located directly below Centralia, Pa.: Smoke rises from the cracked ground, smoldering sinkholes open without warning, and what is left of the town’s abandoned houses and surrounding woodlands is scorched and covered in a layer of smelly sulfur. Once a productive mining town in eastern Pennsylvania’s valuable anthracite coal region, Centralia has been reduced to a smoky ghost town, lacking even a zip code, by an underground coal fire that has been burning for nearly 50 years.

05 May 2010

Extinction-era coal linked to Chinese cancer epidemic

At the close of the Permian, 252 million years ago, conditions on Earth took a turn for the worse, nearly wiping out life on land and at sea in the planet’s most severe extinction event. Now, eons later, geologists are implicating a coal seam that dates to the “Great Dying” at the Permian-Triassic boundary in one of the modern world’s worst cancer epidemics.

14 Jan 2010

DOE promises $2.4 billion for clean coal

Blogging on EARTH

Secretary of Energy Steven Chu announced today at a meeting of the National Coal Council that $2.4 billion in stimulus money will go to developing carbon capture and storage technologies.

15 May 2009

Mining for iron oxides in coal mine sludge

The billions of tons of coal that miners extracted from Pennsylvania’s ground over the past two centuries have long gone up in smoke, but their legacy lives on in the state’s rivers and waterways. Nasty discharge — often with sky-high metal concentrations — from thousands of abandoned coal mines has been polluting Pennsylvania’s streams and groundwater.

30 Apr 2009

Capturing carbon from coal plants: Is it feasible?

On a remote patch of rolling plain in western North Dakota lies a massive labyrinth of buildings, tanks, towers, pipes and conveyors. This industrial behemoth — the Great Plains Synfuels Plant — is designed to turn the vast deposits of lignite coal that lie in the ground into substitute natural gas.

16 Apr 2009

Coal-to-liquids: Can fuel made from coal replace gasoline?

Amid all the attention to the converging of three energy-related crises — climate change, resource depletion and international extremism funded by the energy trade — a surprising energy choice keeps rearing its head: coal. That especially includes liquid fuels made from coal, which can be a substitute for gasoline, jet fuel and just about any other transportation fuel on which we currently rely.

08 Apr 2009

Energy mission: "Kilowatt Ours"

“What if every time you flipped a light switch, a mountain exploded in West Virginia?”

In the new documentary “Kilowatt Ours,” filmmaker Jeff Barrie explains why that idea isn’t as preposterous as it sounds.

29 Oct 2008

West Virginia Coal:Dirty water, dirtier politics — but will there be a cleaner future?

Coal has always been king in West Virginia. For more than 250 years, the mining industry has ruled the Mountain State, sometimes running roughshod over worker’s rights, public safety and West Virginia’s mountain ecosystems in the push for higher yields. Coal mining is not without its benefits: West Virginia’s mines produce 15 percent of our country’s coal and half of our coal exports. And the industry provides 40,000 jobs and contributes $3.5 billion to the Mountain State’s economy. Now with U.S.

02 Sep 2008

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