Headlamps make cold nights cozier, but leave the fuel-burning lanterns and stoves outside.
August 25, 2013 If the weather on your campout turns ugly, you may be tempted to fire up the stove inside the tent to cook or get warm. Don't, say emergency room toxicologists, or risk a potentially lethal buildup of poisonous carbon monoxide.
Skyscrapers are obscured by heavy haze in Beijing on Jan. 13. Air pollution remains a serious — sometimes overwhelming — problem, but researchers say environmental technology is available to solve it.
Ng Han Guan/AP
May 24, 2013 There is some political willingness, but because China is highly decentralized politically, the Communist Party has only limited influence over provincial governments and how they regulate their dirty factories. The powerful state-owned oil companies have also resisted pressure to produce cleaner-burning fuel.
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Men walk along a railway line in Beijing on Jan. 12, as air pollution reached hazardous levels.
Wang Zhao/AFP/Getty Images
April 2, 2013 About 1.2 million people die prematurely every year in China from exposure to outdoor air pollution. Smog has dogged the country as it grows at an explosive rate and burns huge quantities of fossil fuels. But there are signs that the government is beginning to take the issue more seriously.
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Downtown Beijing in the clouds of its latest air pollution emergency.
January 29, 2013 Air quality readings put the Chinese capital's air in the hazardous zone; visibility is less than 200 yards in some parts of the city.
January 15, 2013 Pollution around Beijing has been stifling for the past few days. NASA has released a pair of satellite images, showing the extent of the smog from space and how the air has changed in the past couple weeks.
An ice-resurfacing machine races across a rink at Curt-Frenzel-Stadion in Augsburg, Germany.
Annette Zoepf/dapd via AP
March 1, 2012 Early last year 31 people got sick after spending time at an indoor ice arena owned by a private school in New Hampshire. Poor ventilation of exhaust from a machine used to resurface the ice turned out to be a big problem.
November 2, 2011 Even if people used bikes to run short errands than half the time, it could save more than 1,100 lives a year in 11 Midwestern cities, thanks to reduced air pollution and improved health. That's the word from scientists at the University of Wisconsin, who figured people would bike 4 months out of the year.
Can building exteriors really eat smog in cities like Los Angeles, pictured here?
June 30, 2011 The aluminum giant Alcoa wants to fight smog with a new building product. The company says its panels clean the air as well as trees, but research suggests trees can remove some pollutants the panels can't.
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