I know a theory of how it began, what about a theory of how it ended? (I'm guessing a lot of people have one)
Thirteen answers:
2006-03-22 11:08:29 UTC
In effect the ice age hasn't ended yet. We are still in an icehouse climate, albeit a mild one. Glacial retreat ~10,000 BP was most likely brought about by a decrease in in a relatively warm phase of Milankovich cycles as the Earth has precessed so that the northern hemisphere is closest to the sun in the winter, giving us mild winters in comparison to what it was like 10,000 years ago. But precession will put us back at that same situation (northern hemisphere far from the sun -- colder winters) in another few thousand years.
The recent anthropogenic CO[2] increases are likely to be only a mild forcer in comparison to solar flux (brought about by Earth-Sun cycles) and weathering rates. So it is possible that we will go back into an ice age within a few thousand years.
?
2016-12-18 15:37:21 UTC
How did the ice age end? Which one? there's a huge determination of popular aspects which the two brought about as ended previous ice a while (ie the Milankovitch cycles) and none of them disprove at present's human brought about worldwide warming. <> The earth dealing with organic warming and cooling cycles is relatively-understood and nicely researched and located to not be a component in the present pronounced warming. For starters, those organic cycles choose 'forcings' too, something desires to set off the warming and/or cooling. The 'forcings' (= motives) for previous organic cooling and/or warming activities are nicely-popular and all finally end up to not be a component in the present pronounced warming. If something, a variety of organic forcings (changes in the sunlight's output) could definitely cool the earth mutually as the right opposite is pronounced. not purely are each and all the organic forcings of previous climate changes ruled out, the fee of the present pronounced warming is yet another key component which makes the present pronounced warming different from previous climate exchange episodes. regularly, previous climate changes took hundreds of years of sluggish yet sluggish warming/cooling giving earth's inhabitants (flora and animals a brilliant form of the time) sufficient time to evolve to the changing environment. the present pronounced warming is occurring at a plenty greater fee (in one hundred years the earth has warmed the comparable volume of levels which throughout previous climate exchange episodes took countless thousand years). that's this severe velocity of warming it is very alarming because it provides earth's inhabitants (flora, animals and almost 7 billion people who all could be fed) little time to evolve to the changing circumstances (ie, sea point upward thrust affecting coastal areas, agricultural changes which inevitably could have a skill on nutrition production and expenses, the unfold of tropical ailments, etc.).
heraclius@sbcglobal.net
2006-03-25 12:01:21 UTC
Nobody knows for sure. The best explanation today concerns what are called Milankovitch cycles--interactions between Earth's orbit and axial precession--but the theory isn't perfect.
sour_sour_berry
2006-03-22 11:37:00 UTC
Well,the ice age stayed for about a thousand years before dinosaurs!!!
Then every year month day the sun got hotter.All the water went in to oceons and formed lakes.that was from the wholes in the soil.
lampoilman
2006-03-22 11:11:41 UTC
There have been many ice ages, not just one. Each started with global cooling and each ended with global warming...nuff said.
i.wilson
2006-03-22 10:59:23 UTC
The sloth, Sabre tooth and mammoth gave the baby back to its father and they all lived happily ever after... Until the sequel :)
lovely chick
2006-03-22 11:08:04 UTC
the ice age never happened! Just like dinos arent real!
boris
2006-03-22 10:57:53 UTC
The ice melted.
Sir Chyver
2006-03-22 11:10:50 UTC
The bottom line is more started melting than was falling.
ellysium06
2006-03-22 11:41:44 UTC
With a wimper
philski333
2006-03-22 10:57:59 UTC
It all started on a real sun shiny day !!!
2006-03-22 10:58:02 UTC
The Sloth chasing an acorn........
mrman
2006-03-22 11:10:12 UTC
heat
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