as much as i hate reducing all environmentalism to CO2, accelerating ice melting in Greenland is a good reminder that, as a humanity, we have some problems to worry about on the increasingly short-term time scale.
"The amount of ice lost by Greenland over the last year is the equivalent of two times all the ice in the Alps, or a layer of water more than one-half mile deep covering Washington, D.C."
seriously, though. i will probably see large impacts from climate change before i retire.
"Inclusion of the dynamic processes of these glaciers in models will likely demonstrate that the 2007 Intergovernmental Panel on Climate Change assessment underestimated sea-level projections for the end of the 21st century."
the theory that seems most likely to me (for no particular reason, really) is that enough water will build up under the Greenland ice sheet that it will slide into the ocean. this addition of cold water will disrupt the currents that keep Europe warm. Europe will cool off enough that they will have a nasty winter followed by a mild summer where little snow melts. and we'll be on the fast track for an ice age. this is called the collapse of thermohaline circulation theory
trees are a good buffer to help prevent both warming and cooling, plus they are beautiful. i think we should plant more.
really so many more. everywhere they will grow. and come up with ways to plant more in places they normally don't grow.