EarthEl Niño means glaciers in the Andes are melting at record rates Many glaciers will soon be extinct, with huge knock-on effects on human water supplies and unique ecosystems. The race is on to sample them before they’re gone ¿ìè¶ÌÊÓÆµ
HumansState of the science: The real message in Obama's last address In his final State of the Union address, Barack Obama talked up the need for Americans to set aside ideology and heed the evidence, says Andrew RosenbergComment