Choking China: The struggle to clear Beijing's air
As pollution levels return to normal in China's capital after a record-breaking month of smog, what can be done to banish the smog?
New Scientist
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Why India must make its Moon probe pay
India needs all the sexy science projects and clear thinking it can get if the country is to become a major player in basic research.
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Stock market game may predict eco disasters
An online trading system might forecast the availability of water more accurately than the best computer models used by environmental scientists, say its developers.
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Heat we emit could warm the Earth
Even if we succeed in curbing emissions, the heat our energy use releases into the environment might begin warming the planet.
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Pig organs: Ready for humans at last?
Problems associated with implanting animal organs in humans had seemed insurmountable, but new research could soon bring about the first clinical trials.
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Whatever happened to the hydrogen economy?
Will hydrogen ever transform the way we heat our homes and fuel our cars?
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Renewable energy: Anywhere the wind blows
The time and money being spent on wind power is perhaps not surprising when you consider that, based on global average annual wind speeds, worldwide there is the potential to generate 106 million gigawatt-hours of electricity per year from wind - five times the total amount of electricity generated globally today.
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US elections: Candidates feel the heat on climate issues
If you want to see where the US is headed on climate change take a look at California. Under Republican governor Arnold Schwarzenegger - whose proactive stance on air pollution is said to have been triggered partly by his son's asthma - the golden state is blazing a trail on greenhouse gas emissions for the next president to follow.
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Renewable energy: Electric dreams
Smokestacks, cooling towers, reactor domes and gas installations are defining features of our modern landscape. Each is a key component in electricity generation, but perhaps not for much longer. Sprinkled over every continent are the totems of a new era of power: wind turbines and solar energy collectors. So far they are few and far between, but that's about to change.
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Could the diabetes epidemic be down to pollution?
Ask why diabetes is epidemic in the 21st century and most people will point the finger at bad diet, laziness and obesity. According to a small but growing group of scientists, though, the real culprit is a family of toxic chemicals known as persistent organic pollutants, or POPs.
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What is your dinner doing to the climate?
Your shopping basket is spewing greenhouse gases. But don't worry, you can easily cut out the culprits: a report.