Sentences with phrase «through snowball earth»

The features that allowed one species or family to get through Snowball Earth or the Mexican asteroid or the Deccan Traps were by definition irrelevant to their adaptive fitness in normal times.

It could be parsed as a Pangaean Affairs article by an editorial collective of ammonites critical of the elitist vertibrate policy debate between coprolite carbon sequestration advocates, and radical therapods demanding more tree fern peatbeds to fuel posterity's struggle to power through Snowball Earth episodes in epochs to come.

Not exact matches

As a result, the Earth's surface may have froze mostly or thinly solid through equatorial regions («Snowball» versus «Slushball» Earth hypotheses).

Earth's surface may have froze mostly or thinly solid through equatorial regions (see debate between the «Snowball» versus «Slushball» Earth hypotheses).

There is evidence that Earth has gone through at least one globally frozen, «snowball» state in the last billion years, which it is thought to have exited after several million years because global ice - cover shut off the carbonate - silicate cycle, thereby allowing greenhouse gases to build up to sufficient concentration to melt the ice.

There is evidence that Earth has gone through at least one globally frozen, «snowball» state in the last billion years, which i... ▽ More Although the Earth's orbit is never far from circular, terrestrial planets around other stars might experience substantial changes in eccentricity that could lead to climate changes, including possible «phase transitions» such as the snowball transition (or its opposite).

Jim Green: One of the things that we've uncovered is that, in Earth's past, [our planet has] gone through various stages, one of which we call Snowball Earth.

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Bart Verheggen says: August 14, 2011 at 3:03 am So how do past climate changes (from snowball earth to the hothouse Cretaceous) fit in your paradigm that «that the temperature of the Earth is kept within a fairly narrow range through the action of a variety of natural homeostatic mechanisms.&raearth to the hothouse Cretaceous) fit in your paradigm that «that the temperature of the Earth is kept within a fairly narrow range through the action of a variety of natural homeostatic mechanisms.&raEarth is kept within a fairly narrow range through the action of a variety of natural homeostatic mechanisms.»?

The fact that the earth appears to have gone through huge changes in atmospheric CO2 concentration over geologic eras, while the estimated temps went from 12degC to 22 deg C regardless of «Snowball Earth» or «Cretaceous Hot House» with both hot and cold periods occurring during both high and low CO2 regimes and both with and without ice caps argues very strongly that we do not understand the climate mechanism atearth appears to have gone through huge changes in atmospheric CO2 concentration over geologic eras, while the estimated temps went from 12degC to 22 deg C regardless of «Snowball Earth» or «Cretaceous Hot House» with both hot and cold periods occurring during both high and low CO2 regimes and both with and without ice caps argues very strongly that we do not understand the climate mechanism atEarth» or «Cretaceous Hot House» with both hot and cold periods occurring during both high and low CO2 regimes and both with and without ice caps argues very strongly that we do not understand the climate mechanism at all.

Three areas of particular interest and debate are the «faint young Sun paradox,» the role of organisms in shaping Earth's atmosphere, and the possibility that Earth went through one or more «snowball» phases of global glaciation.