Saturday, May 15, 2010

Earth will be Too Hot for human beings after 300 years

Year by year temperature is raising Protect the planet,

Australian scientists have warned half the planet could "simply become too hot" for human habitation by the year 2300.

New research by the University of NSW has forecast the effect of climate change over the next three centuries, a longer time horizon than that considered in many similar studies.

Some regions would start to become too hot and humid for human habitation with a global temperature rise of 7 °C, the paper says. With a rise of 11 °C or more, most of the human population as currently distributed would either have to move or rely on air conditioning to avoid dying of heat stress.

In a commentary on the paper, published in the US-based Proceedings of the National Academy of Sciences, Australian National University academics said climate change would not stop in 2100.

At the moment, virtually nowhere on Earth has a wet-bulb temperature of more than 30 °C. But with a global rise of 11 °C, huge areas would have wet-bulb temperatures of more than 35 °C for part of the year. According to the climate model used by the team, these regions would include much of the eastern US, the entire Indian subcontinent, most of Australia and part of China.

save the Earth.

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