I think we should let elephants loose in Australia
Australia has a long history of ecological disaster from alien species - so why is ecologist David Bowman proposing adding yet another?
Phil Mckenna
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Saving wild China
Preserving wildlife in the world's fastest developing nation is an uphill struggle. It's a good job L
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Could your trashcan solve the energy crisis?
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?
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Cheap carbon trap cleans up power station emissions
One way to combat global warming is by sequestering the carbon dioxide belched out by power stations, locking it away in buried vaults. A big problem, though, is that only about a tenth of the gas produced by burning fossil fuels is CO2. Most of the rest is nitrogen, which is not a greenhouse gas and would needlessly take up space in the vault. But separating the two gases can be a costly affair. Now a team led by Maciej Radosz at the University of Wyoming in Laramie say they have designed a cheap filter that could capture 90 per cent or more of the CO2 emitted by power stations.
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Can we stop the internet destroying our planet?
When the first comprehensive report in years to examine energy use by computer servers was published in February 2007, it was greeted with surprise by industry insiders. Jonathan Koomey, a staff scientist at Lawrence Berkeley National Laboratory in California, found that worldwide power consumption by servers had doubled between 2000 and 2005. "Everyone thought CO2 emissions were a problem for transportation and big energy," says Bill St Arnaud of Canarie, Canada's internet development organisation in Ottawa, Ontario.
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Renewable energy: Dreams become reality
What do a small Italian village, a community of millionaires in Oregon and a town in Austria have in common? Nearly all of their electricity needs are supplied by renewable energy. They are by no means the only ones. A growing number of communities are working towards using only electricity generated by renewables.
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US bets $150m on renewable energy
Bags of cash are being thrown at high-risk, high-reward research by the Department of Energy. New Scientist takes a look at the lucky recipients.
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Fossil fuels are far deadlier than nuclear power
<p> <meta content="text/html; charset=utf-8" http-equiv="CONTENT-TYPE" /> <title></title> <meta content="OpenOffice.org 3.2 (Linux)" name="GENERATOR" /> <style type="text/css"> <!-- @page { margin: 0.79in } P { margin-bottom: 0.08in } A:link { so-language: zxx } --> </style> <p><font size="3">In the wake of the nuclear crisis in Japan, Germany has temporarily shut down seven o