Richard B. Alley, an expert on Greenland's ice sheet at Penn State, told me it's still possible that flows of meltwater from surface lakes could start large areas of ice moving seaward, particularly if the melt zones continue to expand inland as they have been doing for years now. (dotearth.blogs.nytimes.com)
DeConto says that his study provides some «complementary» «actual numbers» to support the controversial recent result of James Hansen, who argued that truly tremendous amounts of meltwater from Antarctica later this century could trigger a feedback loop of further ice melt and throw the global climate into chaos. (slate.com)
Diversion of glacial meltwater from the Mississippi to the St. Lawrence was suggested by Kennett and Shackleton (1975); Johnson and McClure (1976); Ruddiman and McIntyre (1981a), p. 204 dismissed this since they saw no decrease in North Atlantic biological productivity; but later data, as explained by Broecker, supported the idea, Broecker et al. (1989). (history.aip.org)