Sentences with phrase «observing glaciers melting»

Scientists at this very moment are observing glaciers melting several times faster than before and sea levels rising dangerously fast, contributing to sea level rise and increased extreme weather around the world.

Not exact matches

Facts like, we can actually observe that there's less polar ice and glaciers are melting in Greenland, Iceland, etc..

«Our timing was serendipitous, as it meant we were able to see changes in microbial processes over an extremely fast melting season and observe a process from start to end across all habitats on a glacier surface.

But scientists increasingly attribute much of the observed grounding line retreat — particularly in West Antarctica — to the influence of warmer ocean water seeping beneath the ice shelves and lapping against the bases of glaciers, melting the ice from the bottom up.

They used the model first to simulate existing, observed subsurface melting within the Amundsen Sea, a region of West Antarctica that includes two vulnerable glaciers, Thwaites and the Pine Island Glacier.

This remarkable correlation is supported by observations by other scientific teams who had already observed traces of glacier melting and retreat, as well as evidence of subsurface ice, in the former polar regions.

Two new studies by researchers at the University of California, Irvine and NASA have found the fastest ongoing rates of glacier retreat ever observed in West Antarctica and offer an unprecedented look at ice melting on the floating undersides of glaciers.

Here are some possible choices — in order of increasing sophistication: * All (or most) scientists agree (the principal Gore argument) * The 20th century is the warmest in 1000 years (the «hockeystick» argument) * Glaciers are melting, sea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing * Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years agree

If continental ice melting (Greenland, Antarctic, terrestrial glaciers) is accelerating and if warming of the 0 - 700 m (and deeper) oceanic layer is still on, you shoud observe a higher rate of sea - level rise.

Yep, get all indignant, but skewed numbers on a page still can't contradict the melting of glaciers, ice caps, and observed change of climate.

However, he also supports the idea that warming has recently stopped and has argued against some well - established points of climate science, such as observed sea level rise and glacier melting.

On marine terminating outlet glaciers the mechanisms to trigger thinning is surface ablation causing thinning, and potentially basal melting, though not yet observed (though see this recent paper by Holland et al, 2008).

Global warming must be the primary cause of glacier retreat, which is occurring on a global scale, but observed rapid melt rates suggest that other factors may be involved.

The same can be observed around some Andean glaciers and of course the Antarctic peninsula: renewed advection of warmer air displaced by colder HP polar air masses descending to lower latitudes can melt certain regions yet it does not mean global warming, quite the opposite in fact.

6 For example, we will observe the expansion of subtropical deserts, melting glaciers and changing weather conditions.

But scientists increasingly attribute much of the observed grounding line retreat — particularly in West Antarctica — to the influence of warmer ocean water seeping beneath the ice shelves and lapping against the bases of glaciers, melting the ice from the bottom up.

The observed net loss of -0.52 m / a in glacier mass spread over the melt season is equivalent to 2.45 m3 / s in Thunder Basin, which is 10 % of the mean summer streamflow.

Scientists have recently observed major changes in these glaciers: several have broken up at the ocean end (the terminus), and many have doubled the speed at which they are retreating.2, 5 This has meant a major increase in the amount of ice and water they discharge into the ocean, contributing to sea - level rise, which threatens low - lying populations.2, 3,5 Accelerated melting also adds freshwater to the oceans, altering ecosystems and changing ocean circulation and regional weather patterns.7 (See Greenland ice sheet hotspot for more information.)

I have observed five glaciers melt away completely in this interval.

(1) The mountain glacier model is driven by observed rather than modelled climate, so that two different climate histories go into producing the dashed black line: observed climate for glacier melt and modelled climate for ocean thermal expansion.

Almost as inconvenient as the observed fact that the poles and temperate regions ARE warming and their glaciers are melting....

For the period 1961 - 2003, the observed sea level rise due to thermal expansion was 0.42 millimeters per year and 0.69 millimeters per year due to total glacier melt (small glaciers, ice caps, ice sheets)(IPCC 2007).

Global sea level is currently rising as a result of both ocean thermal expansion and glacier melt, with each accounting for about half of the observed sea level rise, and each caused by recent increases in global mean temperature.

The observed effects of cryosphere reduction include modification of river regimes due to enhanced glacial melt, snowmelt advance and enhanced winter base flow; formation of thermokarst terrain and disappearance of surface lakes in thawing permafrost; decrease in potential travel days of vehicles over frozen roads in the Arctic; enhanced potential for glacier hazards and slope instability due to mechanical weakening driven by ice and permafrost melting; regional ocean freshening; sea - level rise due to glacier and ice sheet shrinkage; biotic colonisation and faunal changes in deglaciated terrain; changes in freshwater and marine ecosystems affected by lake - ice and sea - ice reduction; changes in livelihoods; reduced tourism activities related to skiing, ice climbing and scenic activities in cryospheric areas affected by degradation; and increased ease of ship transportation in the Arctic.

Either way it's still climate change.The new research, published in the journal Nature, shows that steady meltwater caused by gradual warming actually may slow down glaciers» flow towards the ocean, but sudden increases in water caused by weather extremes are driving the observed increase in melting.