Fast to the US means within a business year or two. Anything that takes a generation or more is outside our economy's ability to respond. It would need government to impose on business, and we're done doing that.
Interesting how this confirms both the current AGW threat and the migration findings of the kelp highway route to humans settling Americas.
@unreal: How do you mean CO2 "the driver", unless you are somehow both alluding to the current anthropogenic climate regime and then making an unlikely, unsupported claim - I assume - from an irrelevant political basis?
CO2 are one of many climate drivers. It is not the main contributor to the glacial cycles, which are caused by Earth's precession cycle [ https://www.ncdc....20Cycles ].
But as it happens, the last glacial retreat now seem more likely than not to have been anthropogenic by early agrarian culture's deforestation and concomitant CO2 (and CH4) forcing - uniquely in the last several cycles - to make it the first human-caused global warming event [ http://www.realcl...n-update ].
torbjorn_b_g_larsson. To quote the article "Previous research estimated that it covered much of western Canada as late as 12,500 years ago, but new data shows that large areas in the region were ice-free as early as 1,500 years earlier."
So basically the rapid 1000 year swings in receding and growing glacial coverage is not attributable to anthropogenic CO2 nor precession. I guess you are pretty sure there was no industrial revolution in the period discussed. And yet there was both a warming and a cooling in that period. Hmmmm. It is as if you assume something more then follow where the data takes you.
Furthermore. We have archaeological evidence of ocean capable boat technology stretching 60.000 years all over the world. They used boats and stars to cross the ponds.They did not wait for the ice corridors to melt. Since 2016 we know there is Australian aboriginal DNA in the middle of the Amazon with tribes that shun other humans; also in Baja California Sur Mexico and in India.
So how could CO2 be the driver, more likely the follower than the driver..
So true. I mean, we're emitting huge volumes of CO2 and CO2 is a greenhouse gas and we have established that greenhouse gases increase the energy in the climate system and we have real-world outcomes that are consistent with that.
But clearly there's something else going on. Guess we'd better keep looking.
@eljo You need more characters. You didn't include enough red herrings in that post.
https://www.thegu...tarctica Scientists discover 91 volcanoes below Antarctic ice sheet This is in addition to 47 already known about and eruption would melt more ice in region affected by climate change Wonder if this is causing the melting?
unrealone1
Nov 10, 2017