“Imagining Coal Without Air Pollution” – Wall Street Journal, 8 January 2014

While many countries have been working together to reach global environmental goals—such as reducing emissions and increasing use of renewable energies—it often seems like China hasn’t gotten the memo. Due to a growing population, and thus a growing demand for energy, China is the world’s largest emitter of carbon dioxide emissions. Over the last few months, many of China’s major cities have had issues with smog—a product of coal-burning power plants—and citizens have been forced to wear face masks.

The US faced similar problems with smog in the late 1960′s and 1970′s, which inspired the formation of the EPA and passed the Clean Air Act. Since then, US electricity utilities reduced sulfur dioxide emissions by over 80% and nitrogen oxides by over 75%, using lower-sulfur coal found in Wyoming’s Powder River Basin. Now that the government and utilities have successfully kept those emission levels down, they are tackling mercury and greenhouse gas emissions, which means new environmental regulations. As a result, many of the US’s coal-burning power plants will close, since upgrading the plants’ equipment isn’t profitable. Moreover, natural gas releases half the carbon dioxide emissions of coal, and natural gas costs have plunged since 2009.

New regulations on mercury has the potential to reduce emissions by almost 90% and cause more power plants to shut their doors. The EPA is handling greenhouse gas emissions, like carbon dioxide, by introducing regulations that will more or less disallow utilities to build new coal-burning power plants. The EPA is set to propose new standards for existing power plants and guidelines on greenhouse gas emission levels.

Scientists are trying to find a way to prevent carbon dioxide emissions from burning coal, as well as studying the method of cleaning coal prior to combustion. Both have proved costly, though countries with more access to coal and less to natural gas—like China, Pakistan, Indonesia and Australia—have expressed interest in these technologies.

Developed and Written by Dr. Subodh Das and Tara Mahadevan

March 21, 2014

Phinix LLC

Copyright 2013. All rights Reserved by Phinix, LLC.

www.phinix.net    skdas@phinix.net

Social Share Toolbar

“Coal Scrubbers Give Illinois Basin New Life” – Wall Street Journal, 9 January 2014

Natural gas has been dominating the news, and many feel that the influx of the major energy source has inadvertently waged a war on coal. US coal production dropped 7% in 2012, but now coal is making a resurgence, mainly due to the Illinois Basin, which extends from Illinois to Missouri, Indiana and Western Kentucky.

The Illinois Basin was a key US coal basin, until the Clean Air Act of 1970 passed, making the Illinois Basin unfavorable for mining. Illinois coal has elevated levels of sulfur, which is partially responsible for acid rain. However, widespread use of scrubbing technology has allowed for mines in Illinois to reopen—scrubbing technology can lift 97% of a coal-fired power plants’ sulfur dioxide. The Energy Information Administration (EIA) predicted that Illinois would generate 56 million tons of coal in 2013, a 70% increase from 2010. The Illinois Basin is anticipated to produce more coal than Central Appalachia, another major US coal basin.

While natural gas has been a huge boost to our economy and is the cleaner energy source, the coal industry provides the US with many jobs. There will be more jobs available as the basin reopens near railroads and along the Mississippi River.

As the US inches towards a more desired energy independence and security, we must continue to pursue a prudent “all of the above ” energy strategy.

Developed and Written by Dr. Subodh Das and Tara Mahadevan

March 21, 2014

Phinix LLC

Copyright 2013. All rights Reserved by Phinix, LLC.

www.phinix.net    skdas@phinix.net

Social Share Toolbar