Sentences with phrase «may thaw this permafrost»

Warmer air temperatures, as a result of climate change, may thaw this permafrost.

Not exact matches

Thawing permafrost may mean more CO2 in the atmosphere but less sea ice may mean more carbon captured by the Arctic ocean

Data gathered by existing monitoring networks «indicate that large - scale thawing of permafrost may have already started,» the U.N. report says.

Increasing wildfire activity may rapidly increase the rate of permafrost thaw.

Another theory: oxidation of organic matter — as permafrost thawed, as peaty soils burned or as a seaway dried up — may have caused the Paleocene - Eocene warming.

In contrast, the warming on the land may increase the protective vegetation layer and delay thawing of permafrost outside of lakes,» said Vladimir Romanovsky of the UAF Geophysical Institute and co-author of the new study.

According to research published in the journal Science («Disappearing Arctic Lakes,» June 2005), thawing permafrost may explain the shrinking or disappearance of hundreds of large Arctic lakes across western Siberia.

Scientists have long feared that as the world gets warmer, thawing permafrost may lead to a significant effect on global warming.

And we may yet see it accelerate due to positive feedbacks (e.g. release of methane as the permafrost thaws).

Although the Russian authorities may downplay their concerns because they don't really have any good solutions, they are very concerned about the economic consequences of the thawing because much of Russia's natural gas and oil is extracted from the permafrost.

Reductions in sea ice and other changes may affect the amount of Carbon Dioxide absorbed by the Arctic Ocean, while thawing permafrost is expected to increase emissions of methane.

Thawing permafrost may also contaminate freshwater resources when previously frozen industrial and municipal waste is released.

Ultimately, the long - term fate of carbon release from thawing permafrost may be counterbalanced by enhanced vegetation growth.

Earth system and carbon - cycle feedbacks such as the release of carbon from thawing permafrost or vegetation changes affecting terrestrial carbon storage or albedo may further extend and possibly amplify warming (6).

Thawing by climate change of subsea layer of permafrost may release stores of underlying, seabed methane

Previous research has shown that soil moisture plays a critical part in both permafrost thaw and carbon exchange with the atmosphere — as the permafrost breaks down, surface water may drain away to deeper soil layers, leaving the topsoil high and dry.

Changing sea ice condition and permafrost thawing may cause damage to bridges, pipelines, drilling platforms, hydropower and other infrastructure.

The first article linked below reports on a recent study that says that «Global warming gases traped in the soil are bubbling out of the thawing permafrost in amounts far higher than previously thourght and may trigger what researchers warn is a climate time bomb

On the other hand, releasing free gas trapped below the permafrost may require only perforation of the permafrost, perhaps by means of thaw bulbs or taliks and the transformation of continuous to discontinuous permafrost.

Given that thawing permafrost also affects buildings, roads and other infrastructure, and thus society has a direct stake in its progression, there may also be an opportunity for citizen science in establishing additional permafrost monitoring sites.

Recent research finds that methane release from thawing permafrost may outpace carbon dioxide as a major contributor to global warming over the next century.

We also underestimated the potential importance of strong feedbacks, such as the thawing of the permafrost to release methane, a powerful greenhouse gas, as well as tipping points beyond which some changes in the climate may become effectively irreversible.»

If Arctic areas continue to warm, scientists speculate that thawing Arctic soils may release significant amounts of carbon dioxide and methane currently trapped in permafrost.

«Overall, these observations indicate that large - scale thawing of permafrost may already have started.»