Sentences with phrase «scientists at mid-century»
The changes had been rapid — where «rapid,» for climate scientists at mid-century, meant a change that progressed over as little as one or two thousand years.
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According to Princeton University scientists Stephen Pacala and Robert Socolow's «wedge» strategy of climate change mitigation — which quantifies as a wedge on a time series graph various sets of efforts to maintain flat global carbon emissions between now and 2055 — at least two million megawatts of new renewable energy will have to be built in the next 40 years, effectively replacing completely all existing coal - fired power plants as well as accounting for increases in energy use between now and mid-century.
Record high temperatures are currently outnumbering record low temperatures by about two to one, and those ratios are projected to be about 20 to 1 by mid-century and 50 to 1 by 2100, said Jerry Meehl, a scientist at the National Center for Atmospheric Research.
the impact on global economic growth begins to mount over time and even conservative estimates put the costs at up to 3 percent of global GDP annually if the Earth's temperature were to rise 2 - 3 degrees C, which many scientists believe could begin to happen as early as mid-century?
The Californian scientists warn that, by mid-century, at least 60 % of land areas in tropical Africa and along the rim of the Indian Ocean will be experiencing hotter conditions than any in the 20
Climate scientists predicted years ago that — at present rates of melting — the Arctic could be ice - free in September by mid-century.
Many scientists believe that if we continue emitting carbon dioxide at current levels, all corals will likely be threatened by mid-century.
Using simulation models that account for the impact of increased atmospheric carbon dioxide concentrations on temperature and precipitation in the region, scientists at the Hadley Center for Climate Prediction and Research in the UK have forecast significant «die - back» of the Amazon rain forest by mid-century and a virtual collapse of the ecosystem by 2100.