...The story begins some 4.57 billion years ago, when the young sun's nuclear furnace ignited and stabilized. Back then, solar physicists estimate, the sun was 30 percent dimmer than it is today. As it has matured, it has brightened at a pace of about 1 percent every 110 million years.Doomed! We're all doomed!
Over that period, the two explain, Earth's climate system has adjusted to the increase in the sun's output, keeping the planet's average temperature within a livable range and with plenty of water on hand. Orbiting 93 million miles from the sun, Earth finds itself nicely placed in the sun's habitable zone.
But over the next billion years, the duo says, the sun's output will rise by another 10 percent...
Tuesday, May 24, 2011
Apocalypse Deferred - Global Warming Inevitable
End Of World In 1 Billion Years?