Air

"MEXICO CITY -- This megalopolis once had the world's worst air, with skies so poisonous that birds dropped dead in flight. Today, efforts to clean the smog are showing visible progress, revealing stunning views of snow-capped volcanoes -- and offering a model for the developing world."

"The International Maritime Organization today finalized plans that would subject ships within a 230-mile buffer zone around the U.S. and Canadian coastlines to stricter air pollution regulations."

"Approximately 87 million Americans who live near major seaports are breathing some of the nation's dirtiest -- and most dangerous -- air, the Environmental Protection Agency says. But help is on the way, thanks to initiatives across the USA to cut pollution coming from ships, vehicles and other sources within the ports themselves."

"California lawmakers approved a groundbreaking smoking ban Monday that, if signed into law, will prohibit smoking at nearly all state beaches and parks."

"Cruise companies are balking at a proposal to create a low-emissions buffer zone around the United States and Canada, saying it sets arbitrary boundaries based on faulty science that overstates the health benefits."

"Many of America's coal-fired power plants lack widely available pollution controls for the highly toxic metal mercury, and mercury emissions recently increased at more than half of the country's 50 largest mercury-emitting power plants, according to a report Wednesday."

"A federal judge has sided with a Midwestern energy company, agreeing to dismiss allegations of Clean Air Act violations at five Illinois coal-fired power plants and partially dismiss claims of violations at a sixth plant."

"The latest science supports substantially tightening U.S. EPA's air quality standards for soot in order to safeguard public health and the environment, according to a draft report from agency scientists."

"Two billion people worldwide do their cooking on open fires, producing sooty pollution that shortens millions of lives and exacerbates global warming. If widely adopted, a new generation of inexpensive, durable cook stoves could go a long way toward alleviating this problem."