Sentences with phrase «glacial conditions as»

Other processes must be responsible for the 40 - to 50 - ppm pCO2 drawdown during the initial transition from interglacial to glacial conditions as well as for a comparable pCO2 increase during the latter part of glacial terminatins.

Not exact matches

But the topography is just one part of the story — coupling that with vastly improved satellite data as well as a better understanding of glacial processes and oceanographic and climate conditions is «probably what we need to do in all of these places,» Siegert says.

«Humans in this region thrived through the Toba event and the ensuing full glacial conditions, perhaps as a combined result of the uniquely rich resource base of the region and fully evolved modern human adaptation,» study authors noted.

I think these are simply features of global climate that are embedded and as predictable as other large features like hurricane patterns, the gulf stream, the jet stream, sea ice extent and mass, global glacial conditions, sea level etc..

The results of these simulations show that dust − climate feedbacks, perhaps set off by orbital forcing, push the system in and out of extreme cold conditions such as glacial maxima.

The last deglaciation occurred as a long process between peak glacial conditions (from ~ 26 - 20,000 years ago) to the Holocene (~ 10,000 years ago).

But it is far from obvious that the climate's sensitivity to GHG forcing must be the same today as it was at the glacial maximum, when conditions were very different.

If C02 is the largest single contributing factor to the Greenhouse Effect (because supposedly water vapor is only involved as a feedback to primary chemistry involving C02 itself), and C02 lags temperature increases (as has been stated on this very blog), how has the Earth ever returned to colder glacial conditions following periods of warming?

Although the sensitivity of climate does change itself as the boundary conditions change, the past (PETM, glacial - interglacial cycles, etc) does not support sensitivities as low as 1 degree per doubling of CO2, and it doesn't support very high ones (like 10 degrees per doubling) either.

Carbon starvation, which apparently sometimes occurs during glacial periods due to the low levels of CO2 that are reached, has the same effect on C3 plants * trees, shrubs, and such) as do warm, dry conditions when the warm is excesaive.

Conditions have been so warm and dry that at least one glacial outburst flood has occurred on the slopes of Mt. Shasta as winter ice accumulation decreases and summer melt accelerates.

They reported a «rather sudden change from more or less stable glacial conditions» about 11,000 years ago, a change from fully glacial conditions to modern warmth within as little as a thousand years.

each period of warming during the descent to the next glacial stage should be more intense than the previous ones, as climatic variability increases outside the warm conditions of an interglacial climatic optimum.

This overshoot is caused predominantly by the reduction of the meltwater in the northern North Atlantic associated with the retreat of the large amount of sea ice, an effect that becomes dominant when the subpolar North Atlantic is covered by sea ice as in the glacial condition.

These «hothouse Earths» supported life, but would be inhospitable to today's life - forms, adapted as they are to the conditions of a CO2 - poor glacial world.

In 2002, the Larsen B ice shelf collapsed; in 2003, the World Glacial Monitoring Service reported that «The recent increase in the rates of ice loss over reduced glacier surface areas as compared with earlier losses related to larger surface areas (cf. the thorough revision of available data by Dyurgerov, 2002) becomes even more pronounced and leaves no doubt about the accelerating change in climatic conditions.»