Coal power kills a 'staggering' number of Americans, study says
Particulate pollution from coal plants is likely far more deadly than EPA regulations recognize, according to a study published in Science over the Thanksgiving holiday.
Exposure to fine particulate air pollutants from coal-fired power plants has an associated risk of mortality that is more than double that of PM2.5 from all other sources, according to the study from researchers at Harvard University, George Mason University and University of Texas, Austin.
Related Knowledge Center: ENERGY BASICS: coal
The use of coal, a staple of heating and electricity-generation for decades, is in decline in the United States — supplanted by newly abundant production of natural gas — but is still dominant in some parts of the world. While economical, coal use is particularly problematic as international attention focuses increasingly on climate change.
Related Knowledge Center: Air emissions
More than 30 years after the last major update of the Clean Air Act, the U.S. Supreme Court has upended the ability of Congress to give the Environmental Protection Agency and other federal agencies broad scope to combat air pollution, including the emission of greenhouse gases. Meanwhile, further Biden administration efforts to limit emissions face opposition in the courts.
Related Knowledge Center: ENERGY BASICS: energy pollution
While the United States and other industrial nations have made significant strides since the 1970s in the control of conventional pollution from energy production, growing understanding of the impact of carbon dioxide and other emissions on the world’s climate has increased the urgency of converting the world’s economy to renewable, less-polluting energy sources. Worldwide efforts to reduce greenhouse gas emissions had been complicated by rapid economic growth in countries such as China and India, growth literally fueled by coal and petroleum products. Those countries have more recently joined the global effort to address climate change, and the United States —which abruptly reversed direction under the Trump administration — has made clear its intention under President Biden to rejoin the global community on the issue.
Related Knowledge Center: Climate science
What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.