Greenland’s ice sheet is releasing huge amounts of mercury into rivers
A big tangent but I remember a podcast with Sir David King, UK chief scientific advisor<p>- So, Sir David, what's worries you most?<p>- The Greenland Ice Sheet.  If it melts human civilisation is finished.<p>- oh.  And err is it melting?<p>- Yes, and accelerating.<p>- Oh.