Burn Coal – release arsenic, mercury, radioactive particles, and carbon – lots of carbon.  Here’s how the National Resources Defense Council, NRDC, describes it:  Coal is Dirty and Dangerous

Coal is America’s dirtiest energy source — and the country’s leading source of global warming pollution.

Coal mining destroys land, pollutes thousands of miles of streams and brings massive environmental damage to mountain communities.

… produces dirty air, acid rain and contaminated land and water … childhood asthma, birth defects and respiratory diseases that take nearly 25,000 lives each year.

“Coal is the single greatest threat to civilization and all life on our planet.” – James Hansen, NASA’s top climate scientistThere are far cleaner and cheaper ways to meet America’s energy needs. Yet industry apologists are spending millions of dollars to block clean energy solutions and persuade Americans that they can keep using coal without the consequences.

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Green technologies and renewable fuels will create millions of good-paying jobs, … reduce dangerous pollution and help fight global warming.