Global Warming Group Offers Grim Forecast ; Do-Nothing Approach Could Doom 40% of Species

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WASHINGTON What's likely to happen if the world does nothing to combat global warming? The answer from the Nobel Prize-winning Intergovernmental Panel on Climate Change was jaw-dropping: More than 40 percent of known plant and animal species could become extinct by the end of this century.

Many scientists who've been studying climate change say extinctions aren't inevitable if the world greatly reduces its dependence on oil, coal and natural gas. As daunting as the warning signs and projections are, there's still time to fend off the worst, they say. But they also warn that "business as usual" would bring devastating changes in the decades ahead.

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Global Warming Group Offers Grim Forecast ; Do-Nothing Approach Could Doom 40% of Species

"We're locked into a different planet, but we can still make it a planet similar to what we have known," said Lara Hansen, an ec...

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