Sentences with phrase «glacier and ice sheets»

The rest of the rise comes from melting glaciers and ice sheets.

The rise was caused partly by the simple thermal expansion of sea water under the influence of global warming, and increasingly by the melting of glaciers and ice sheets.

Certain microbes that grow on glaciers and ice sheets can paint the snow pink.

This left less water in the oceans since large amounts were tied up in glaciers and ice sheets, and sea level fell.

The second cause of sea level increase is the melting of land ice — such as glaciers and ice sheets.

By trapping heat, rising concentrations of atmospheric pollution are causing glaciers and ice sheets to melt into seas, lifting high tides ever higher.

The large projected range reflects uncertainty about how glaciers and ice sheets will react to the warming ocean, the warming atmosphere, and changing winds and currents.

The warming ocean and atmosphere that are already melting glaciers and ice sheets produce a catastrophic rise in the ocean.

During that time, which can last hundreds to thousands of years, glaciers and ice sheets expand in size and depth.

Since the»90s, there has been a surge of research exploring microbes that live on the surface of or underneath glaciers and ice sheets.

The planet's glaciers and ice sheets cover about 11 % of the planet's surface and hold about 70 % of the world's fresh water.

This is predicted to produce changes such as the melting of glaciers and ice sheets, more extreme temperature ranges, significant changes in weather conditions and a global rise in average sea levels.

The idea that microorganisms can live on glaciers and ice sheets — let alone thrive at globally significant scales — is still relatively new to science.

The other way to calculate sea level is to figure out how much water flows into the ocean from the planet's melting glaciers and ice sheets.

By trapping heat, rising concentrations of atmospheric pollution are causing glaciers and ice sheets to melt into seas, lifting high tides ever higher.

Additional contributions from glaciers and ice sheet contributions to future sea level rise are uncertain but may equal or exceed several meters over the next millennium or longer.

The other two - thirds comes from melting mountain glaciers and ice sheets in Greenland and Antarctica.

So being an earth scientist at the British Antarctic Survey (BAS), specialising in the history of glaciers and ice sheets at the poles, suits me pretty well.

Stibal, M., Sabacka, M., Zarsky, J. (2012a) Biological processes on glacier and ice sheet surfaces.

Ground ice is more prevalent in the Arctic than in Antarctica, where glaciers and ice sheets dominate the landscape.

It is difficult to obtain fossil data from the 10 % of Earth's terrestrial surface that is covered by thick glaciers and ice sheets, and hence, knowledge of the paleoenvironments of these regions has remained limited.

«Overall, our work is helping to explain the mass balance of the big glaciers and ice sheets from the mountains to the poles worldwide,» Paterna said.

If everything goes according to plan, the radar will be turned on and will start to collect data on the thickness of glaciers and ice sheets just three days post-launch.

The system is helping scientists understand how quickly glaciers and ice sheets will melt, and how fast oceans will rise, as temperatures increase

For example, in the vicinity of diminishing glaciers and ice sheets, such as Greenland or Iceland.

Melting of either floating ice or glaciers and ice sheets lowers ocean salinity.»

Qin Dahe, also co-chair of the working group, said: «As the ocean warm, and glaciers and ice sheets reduce, global mean sea level will continue to rise, but at a faster rate than we have experienced over the past 40 years.»

While glaciers and ice sheets may physically plug large stores of buried methane hydrates or pull carbon dioxide out of the atmosphere through millions of small holes, their impacts reach much further than their physical footprint.

Consequently, glaciers and ice sheets disintegrated rapidly and sea levels rose by about 18 meters («12 - 22 m») in 340 years.

Because scientific understanding of how fast snow and ice is responding to global warming is still developing, the IPCC largely left the effect of melting glaciers and ice sheets out of its sea - level rise projections in 2007 and primarily considered the effects that thermal expansion has on the ocean.

However, instead of digging into the soil, they look for clues about our planet's climate history by studying coral reefs, digging into ocean and lake floor sediment and drilling deeply into glaciers and ice sheets.

NASA airborne campaigns like Operation IceBridge have been measuring Greenland and Antarctica's glaciers and ice sheets with a range of...

If today's worst - case global warming scenarios of catastrophic melting of glaciers and ice sheets come to pass, sea levels could rise rapidly, wreaking all sorts of geological havoc «comparable with the most rapid increases in sea level that we've seen in the last 15,000 years,» McGuire said.

Wildfires are thought to be contributing to the warming process, as soot on glaciers and ice sheets prevents the reflection of incoming solar radiation back out into space.

Glacial geology, paleoclimatology, glacier and ice sheet dynamics, geomorphology, geochronology, limnogeology, cosmogenic surface exposure dating

However, recent observations of the rate and severity of physical and ecological responses to escalating radiative forcing — melting glaciers and ice sheets resulting in sea level rise and major changes in weather patterns, prolonged droughts, more frequent hurricanes and storms, and so on — are surprising even top climate experts, and raising awareness that, as a nation, we are dangerously unprepared for the inevitable consequences.

Chris Dudley (21, 40)-- Based on some limited knowledge about glaciers and ice sheets, I am of the fairly firm opinion that nothing above 300 ppm CO2e preserves a «safe» climate, in the long run.

As global temperatures continue to increase, the hastening rise of those seas as glaciers and ice sheets melt threatens the very existence of the small island nation, Kiribati, whose corals offered up these vital clues from the warming past — and of an even hotter future, shortly after the next change in the winds.

Under all RCP scenarios the rate of sea level rise will very likely exceed that observed during 1971 — 2010 due to increased ocean warming and increased loss of mass from glaciers and ice sheets.

«[This choice of topic] makes sense and acknowledges the delicate balance of key parts of the cryosphere, such as Arctic sea ice, permafrost, seasonal snow cover, mountain glaciers and the ice sheets, to climate change and the serious impacts that may result.»

Sea levels have also risen due to melting glaciers and ice sheets at the poles.

«There's a growing push to understand the impact of microorganisms on glaciers and ice sheets,» says Christopher Williamson, a microbiologist at the University of Bristol in England who wasn't part of the study.

Materials scientists hope their computer model results will spark further research into the effects of carbon dioxide on fracturing in glaciers and ice sheets

Oceanographers have historically thought of glaciers and ice sheets as frozen systems that don't add nutrients or water to the oceans, Hawkings explained.

Sea level rises because water expands as it is warmed and because water from melting glaciers and ice sheets is added to the oceans.

Increased atmospheric heat obviously makes temperatures warmer, which leaves less time for ice to form and solidify and create new layers on glaciers and ice sheets.

Its location is wandering as a result of the melting of glaciers and ice sheets — a finding which suggests that monitoring the position of the poles could help us track the decline of ice sheets.