Sentences with phrase «historical sea ice trends»

Newer computer models that scientists are using to help prepare the next IPCC report, which is scheduled to be released in 2014, do a much better job capturing the historical sea ice trends than the previous generation of models did, several sea ice experts told Climate Central.

However, there remains uncertainty in the rate of sea ice loss, with the models that most accurately project historical sea ice trends currently suggesting nearly ice - free conditions sometime between 2021 and 2043 (median 2035).12 Uncertainty across all models stems from a combination of large differences in projections among different climate models, natural climate variability, and uncertainty about future rates of fossil fuel emissions.

Not exact matches

Here's how the summary put it: «The June 2010 Outlook indicates a continuation of the overall trend in long - term loss of summer Arctic sea ice, with no indication that a return to historical levels of the 1980s / 1990s will occur.»

At this point, the sea ice loss showed more of a historical loss trend, but because of the low June value it has remained below the previous lowest value from 2007.

As sea ice declines, it becomes thinner, with less ice build - up over multiple years, and therefore more vulnerable to further melting.15 Models that best match historical trends project northern waters that are virtually ice - free by late summer by the 2030s.25, 26,12 Within the general downward trend in sea ice, there will be time periods with both rapid ice loss and temporary recovery, 27 making it challenging to predict short - term changes in ice conditions.