Weakened Solar Activity Could Speed Greenland Ice Melt
Greenland actually cooled during the 1970s through the 1990s, a time when most of the Northern Hemisphere experienced rising temperatures. An article just accepted for publication in the journal Geophysical Research Letters, reveals the reason for the seeming inconsistency: The paradoxical effect of solar weather on ocean circulation.
The new study, by a team of Danish, Swiss, American and Japanese researchers, concludes that high solar activity starting in the 1950s and continuing through the 1980s played a role in slowing down ocean circulation between the South Atlantic and the North Atlantic oceans
"We need to really consider how solar activity will change in the future," the study's lead author, University of Bern climate scientist Takuro Kobashi, said in a press release. "If solar activity becomes really low, as scientists expect, the Greenland ice sheet will melt faster than we expected from the climate model with just greenhouse gas (warming)."