Doom Dooom dooom!

Global warming is one of the most significant threats facing humankind, researchers have warned, as they unveiled a study showing how climate changes in the past led to famine, wars and population declines.

The world’s growing population may be unable to adequately adapt to ecological changes brought about by the expected rise in global temperatures, scientists in China, Hong Kong, the United States and Britain wrote in the journal Proceedings of the National Academy of Sciences.

 http://www.stuff.co.nz/4284856a12.html