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?
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?
Thousands of bears are being kept in appalling conditions to supply traditional Chinese medicine. Bear bile is used in traditional Chinese medicine and fetches a tidy price. In China, the wholesale price is around 4000 yuan (approximately $580) per kilogram; each bear produces up to 5 kilograms a year. Bears are milked for bile twice a day.
If an influenza pandemic is declared, investigations by New Scientist suggest that global preparedness for a pandemic is extremely patchy.
There were signs that swine flu posed a human pandemic threat over a decade ago, yet no one paid any attention.
To avoid "dangerous" climate change, we must not burn more than one-quarter of our remaining reserves of fossil fuels. That's the conclusion of the most comprehensive effort yet to work out how much carbon can be pumped into the atmosphere without pushing warming past 2
Vaporising household waste to create clean energy could solve two of humanity's biggest environmental problems at once. But is "gasification" as green as it sounds?
Plans to cool the planet by creating a sunshade could cut the amount of electricity generated by solar power.
Atmospheric particles containing lead might have offset the Earth's warming in the 20th century.
A new process converts carbon dioxide into methanol, without the need for extreme temperatures and pressures.
Indigenous peoples from as far apart as Lapland and Micronesia are meeting in Alaska to forge a common position on climate change.
The southern ozone hole has changed weather patterns around Antarctica and cooled the air above the east part of the continent, according to new research.