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A series of giant pipes in the oceans to mix surface and deeper water could be an emergency fix for the earth's damaged climate system, says the scientist behind the Gaia hypothesis. Professor James Lovelock, whose hypothesis says earth is a kind of superorganism composed of living and non-living elements, has fuelled controversy for three decades. He thinks the stakes are so high that radical solutions must be tried to fix our climate, even if they ultimately fail. In a letter to the journal Nature, he proposes vertical pipes 100 to 200 metres long and 10 metres wide be placed...

Record ozone hole despite cuts in CFCs THE hole in the ozone layer over the southern hemisphere is the largest ever, covering an area more than three times the size of Australia. During the last nine days of September, the hole in the ozone layer covered, on average, nearly 17.5 million square kilometres. (snip) While the size of the hole is alarming, it does not mean that increased amounts of ozone-depleting chemicals are reaching the atmosphere...

LOS ALAMOS, N.M. - Hydrogen fuel cells may not be the most environmentally friendly answer to America's dependence on foreign oil, according to a study led by a Los Alamos National Laboratory scientist.   Los Alamos researcher Thom Rahn headed a team of scientists from California universities and the National Center for Atmospheric Research in Boulder, Colo. Their study of the natural cycle of atmospheric hydrogen was published in a recent edition of the British science journal Nature. While there are certain benefits to hydrogen power, Rahn said there may also be unforeseen consequences that need to be examined before...