As explained in the press release, the scientists began with the measure of sea level rise between 2005 and 2013, then deducted the amount of rise due to meltwater (e.g., melting ice sheets and loss of
glacier mass worldwide) and then the amount of rise due to the expansion of water from the warming in the upper portion of the world's oceans (which scientists have good data on).
«As a result, the loss of
glacier mass worldwide, along with the corresponding release of carbon, will affect high latitude marine ecosystems, particularly those surrounding the major ice sheets that now receive fairly limited land - to - ocean fluxes of carbon.»
Not exact matches
Consistent with observed changes in surface temperature, there has been an almost
worldwide reduction in
glacier and small ice cap (not including Antarctica and Greenland)
mass and extent in the 20th century; snow cover has decreased in many regions of the Northern Hemisphere; sea ice extents have decreased in the Arctic, particularly in spring and summer (Chapter 4); the oceans are warming; and sea level is rising (Chapter 5).
Isabella Velicogna can use that information to «study the
mass balance of the Greenland and Antarctic Ice Sheets and
glaciers worldwide, in response to climate warming.»
To get a sense of what is happening
worldwide, you can check the global
glacier mass balance chart at the bottom of this page:
Also, the
mass of
glaciers worldwide declined at the rate of 226 Gt / year from 1971 to 2009 and 275 Gt / year from 1993 to 2009.
Although one can point to particular
glaciers that are growing, glaciologists look for trends in the total
mass of
glaciers worldwide.
Climate change is causing significant
mass loss of
glaciers in high mountains
worldwide.
Over the last two decades, the Greenland and Antarctic ice sheets have been losing
mass,
glaciers have continued to shrink almost
worldwide, and Arctic sea ice and Northern Hemisphere spring snow cover have continued to decrease in extent.
Most mountain
glaciers worldwide are losing
mass, contributing to sea - level rise.
The study relied on multiple global climate models to simulate
mass balance of
glaciers worldwide, excluding Antarctica, from 1851 to 2010.
Greenland and Antarctic ice sheets have steadily lost
mass in two decades, and
glaciers are shrinking
worldwide.