Aliens and the future of planet Earth

·Astronomer Royal Martin Rees discusses the prospects for Earth, humankind … and extraterrestrials.
What will our world look like in 2050? Astronomer Royal and president of the Royal Society Martin Rees predicts crises in water and energy supplies as a result of increased population pressure, exacerbated by climate change. He also discussed the prospects for mitigating global warming.
Rees weighed up the chances that we will have discovered alien life by 2050.
To listen to the interview, go here...
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