Telegraph: Time is running out to prevent "irreversible and dangerous impacts" of climate change, a major UN report has warned. The world is on course to experience "severe and pervasive' effects of global warming unless it urgently cuts its greenhouse gas emissions. Global emissions must fall by at least 40 per cent by 2050 and be cut to zero by the end of the century, the report from the UN's Intergovernment Panel on Climate Change warns. The longer government delay action on climate change, the more expensive...