Climate change is shifting our planet every day. Scientists today reported dramatic ice shelf losses in northern Canada, ten times the size predicted for this summer. For the first time in human history, both the Northwest and Northeast Passages are navigable due to rapid Arctic sea ice melting. Losing all Arctic sea ice (a cooling northern parasol for the Earth) as most analysts predict will occur by 2020 would accelerate the quick Greenland melting with its potential to (more…)