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17-Aug-09
"Farmers thousands of years ago cleared land by burning forests and moved to a new area once the yields declined, say scientists"
16-Aug-09
"It was rated one of the most damaging setbacks to hit the study of global warming: on 8 October, 2005, a £100m probe designed to measure ice thickness at the poles plunged into the Arctic ocean minutes after launch"
16-Aug-09
"Nasa's just-released finding that water tables in the northwest of India are falling by about 4cm (1.6in) per year is a striking microcosm of the unsustainable strain that modern societies are putting on the Earth's natural...
16-Aug-09
"Astronomers have discovered the first planet that orbits in the opposite direction to the spin of its star."
14-Aug-09
"Early modern humans in South Africa were using "heat treatment" to improve their stone tools about 72,000 years ago, according to new research."
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