It reads like a Hollywood doomsday movie: "Report: Climate change could render much of world uninhabitable," screams a USA Today headline. How long until the doomsday scenario unfolds on planet earth? Australian scientists warn half the planet could "simply become too hot" for human habitation in less than 300 years.

Climate Change - Half of Earth to Be Uninhabitable?

A collaborative study between the University of New South Wales (Australia) and Purdue University (USA) has shown that climate change could make the world unlivable by humans by the year 2300, the Associated Press reports.


"We found that ... a 21-degree warming would put half of the world's population in an uninhabitable environment,"says study co-author Matthew Huber of Purdue University.

"It would begin to occur with global-mean warming of about seven degrees Celsius (13 Fahrenheit), calling the habitability of some regions into question. With 11-12 degrees Celsius warming, such regions would spread to encompass the majority of the human population as currently distributed," the report said.


USA Today has more.

The research, produced in partnership with the Purdue University in the United States, is published in the US-based scientific journal Proceedings of the National Academy of Sciences (PNAS) on Tuesday.