Sentences with phrase «when peat bogs»

Not exact matches

When scientists dated a seed recovered from a peat bog in China, they discovered it was two thousand years old.

A peat bog in Romania provides a new insight into our knowledge of when the Sahara began to transform from grassland into the desert we know today, and the impact this had on dust deposition within Eastern Europe.

When water returned to drought - affected peatlands it prompted the release of previously sequestered sulfate, increasing the overall power of peat bogs as methylmercury sources.

The loss of permafrost is of particular concern — when permafrost melts, it releases carbon stored in the soils, and when boreal forests and peat bogs burn, they release carbon stored in the trees and peat.

In recent years, climate scientists have been concerned about a so - called «methane time bomb» on land, which would be detonated when warming Arctic temperatures melt permafrost and cause frozen vegetation in peat bogs and other areas to decay, releasing methane and carbon dioxide.