Did you know that as our mood warms , we are actually devolve to a more typical weather convention for the Earth ? That ’s good — we are living in an ice long time , which means the temperature and ice cap we think of as “ normal ” are actually extreme aberrations in the history of our major planet .
Image via NASA
Over on Tumblr , echopi(AKA Steve Sisney ) has listened to the BBC serial In Our Time and helpfully summed up some of the major facts you should do it about the history of ice old age on Earth . Here are a few :
TheIce Ages episodeof In Our Time with Melvyn Bragg discusses many fascinating concept surrounding Earth’sglacial historyandClimate Change . The most prominent things to find out may be …
There have been at least five majorIce Ages(or glaciations ) in Earth ’s account .
Earth has been ice - free , even in the high latitude , for about 85 % of its history .
The firstIcehouse Earthoccurred at about noon on the 24 - hourgeologic time scale(about 2.5Ba ) .
The lastSnowball Earth , where arctic chalk sheets grow and meet at the equator , go on about 800Ma and end with increasing CO2 make by volcanism .
The variety into an ice age occurs step by step , when more Baron Snow of Leicester fall than melts , rather than a sudden cold press stud .
Our current Ice eld
Our current geological period , theCenozoic eraor the “ Age of Mammals ” , commence 65Ma with theCretaceous - Paleogene(K - Pg ) extinction upshot .
The current ice age , theQuaternary glaciation , beginning about 2.6Ma has feature 40K/100 K class cycles of glacials / interglacials .
The precondition require to setup the current ice rink age took about 40 M age , beginning with the caloric isolation of the Antarctic .
The end of the current water ice age will happen when theGreenland and Antarctic sparkler sheetsmelt . This will happen whether or not humans accelerate it .
Read more over onEchopi ’s Tumblr
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