Sentences with phrase «require decades to millennia»

Snow - cover and sea - ice can change quite rapidly, but glaciers and ice - sheets may require decades to millennia.

Not exact matches

But to understand game narrative, we must also understand narrative — and this requires us to pay attention to those media that have been experimenting with fictional worlds for millennia rather than just a few decades.

Rather, excess CO2 returns toward baseline at a multitude a different rates, with chemical equilibration in the ocean occurring over decades (depending on depth), ocean carbonate buffering through sediment dissolution requiring centuries to millennia, and eventual restoration of carbonate sediment levels by terrestrial weathering occurring over hundreds of thousands of years — a long «tail» that can account for as much as 20 to 40 percent of CO2 excess in the estimates described by David Archer et al in CO2 Atmospheric Lifetimes.