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Kevin Begos, Associated Press PITTSBURGH (AP) — In a surprising turnaround, the amount of carbon dioxide being released into the atmosphere in the U.S. has fallen dramatically to its lowest level in 20 years, and government officials say the biggest reason is that cheap and plentiful natural gas has led many power plant operators to switch from dirtier-burning coal. Many of the world's leading climate scientists didn't see the drop coming, in large part because it happened as a result of market forces rather than direct government action against carbon dioxide, a greenhouse gas that traps heat in the atmosphere. Michael Mann, director of the Earth System Science Center at Penn State University, said the shift away from coal is reason for "cautious optimism" about potential ways to deal with climate change. He said it demonstrates that "ultimately people follow their wallets" on global warming. "There's a very clear lesson here. What it shows is that if you make a cleaner energy source cheaper, you will displace dirtier sources," said Roger Pielke Jr., a climate expert at the University of Colorado. Read More
Robert Asahina has been a newspaper and magazine editor and writer, a book publishing executive and editor, and a data management consultant. He was editor in chief and deputy publisher of Broadway Books, president and publisher of the adult publishing group of Golden Books, and vice president and senior editor of Simon and Schuster; deputy managing editor of The New York Sun and an editor at The New York Times Book Review, Harper's, George, and The Public Interest; and a consultant at Freddie Mac. He is the author of "Just Americans" and of numerous articles and reviews for The Wall Street Journal, Harper's, The New York Times Book Review, and elsewhere.