Pristine Amazon forests have begun to change dramatically because of rising levels of carbon dioxide, according to US scientists.
Plants need carbon dioxide in the way that animals need oxygen -- but the 30% extra carbon dioxide in the last 200 years has begun to accelerate growth and change the composition of the world's biggest rainforest, according to a study published today in Nature. "The changes in Amazonian forests really jump out at you," said William Laurance of the Smithsonian Tropical Research Institute in Panama. "It's a little scary to realise that seemingly pristine forests can change so quickly and dramatically."
For two decades, researchers have studied nearly 14 000 trees in the central Amazon, scattered across a 190 square kilometre landscape. During the the study, most species began to grow faster. They also died faster, to be replaced more swiftly by new, young trees. But the composition of the forests, too, was beginning to change.
"There clearly are winners and losers. In general, large, fast growing trees are winning at the expense of smaller trees that live in the forest understorey," said his colleague Alexandre Oliveira of the University of Sao Paulo, Brazil.
http://www.mg.co.za/Content/l3.asp?ao=32492It just doesn't make sense to me. Somthing I've tried to understand an opposing view point. How do Christians rationalize in the minds 'environmental sanity'? I just don't understand why Christians aren't radical environmentalists? In my opinion, God's Earth should hold a higher stature than the people who live on/are destroying it.