Latest Issue 9 Feb 2016 Latest Issue 9 Feb 2016 Volcanoes can cause climate cooling by spewing large volumes of small particles – sulfate aerosols – into the atmosphere, blocking sunlightEric Meola / Getty Images NewsEarth Sciences How a 'little' ice age shaped civilisation A little volcanic activity goes a long way. by Belinda Smith News Life Sciences A bionic spinal cord for paralysis patients by Viviane Richter Electrode could help steer bionic limbs. News Life Sciences Flashing lights the new weapon against jetlag by Amy Middleton How to prepare for a new timezone. News Earth Sciences How much ice can Antarctica afford to lose? by Belinda Smith The belt holding in Antarctica's ice stocks is slowly loosening. News Life Sciences The reason we sigh by Bill Condie It's vital to keep us breathing efficiently. News Technology Taser causes brain changes similar to dementia by Cosmos reporter Cognitive impairment raises questions over police interrogation.