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When will the Sun destroy life on Earth?

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Ian Dunn
779815.  Tue Jan 25, 2011 6:37 am Reply with quote

The Sun won't destroy life on Earth when it turns into a red giant. It will destroy it much sooner than that.

It is believed that the Sun will turn into a red giant in five billion years time. However, currently the sun is getting warmer and more luminous. As a result, it is believed that in just one billion years time all the water on Earth will have been evaportated and leave the atmosphere.

However, even before that it is likely that the level of carbon dioxide will be too low to support life. It is possible that life on Earth will to stop in just half a billion years.

Source: BBC

 
samivel
779852.  Tue Jan 25, 2011 7:22 am Reply with quote

We'd better get a move on doing all those things we have to do before we die then.

 
Ion Zone
780086.  Tue Jan 25, 2011 7:03 pm Reply with quote

I heard quite recently that the time period when complex life may be sustained on Earth may be about that much or even less. After that it'll just be things like bacteria and some very simple hardy creatures.

 
Sparkyweasel
780110.  Tue Jan 25, 2011 9:31 pm Reply with quote

Ian Dunn wrote:
the level of carbon dioxide will be too low to support life.


Not if we go back to leaving the telly on standby and using old-fashioned light bulbs :)

 
djgordy
791275.  Sat Feb 26, 2011 11:52 am Reply with quote

Ian Dunn wrote:
It is possible that life on Earth will to stop in just half a billion years.


Luckily that leaves us just enough time to pay off the UK's budget deficit.

 

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