Talk:Ice age

'Snowball earth ... hotly debated' - and if it did exist in the past #humans were not responsible#. 212.85.6.26 (talk) 19:14, 3 February 2011 (UTC)

Question on runaway methane
It's my understanding that we've been in non-ice ages before. Wouldn't that have resulted in the permafrost disappearing and the methane being released as well? A feedback effect would've happened before, yet Earth didn't turn into Venus then. To me, it's scaremongering when it isn't even needed. "Weather patterns shift and the sea level rises, massive crop failures everywhere, horrible wars as Europe and the US invade Canada and Russia for farmland" is already pretty damn scary. CorruptUser (talk) 16:46, 22 April 2015 (UTC)