Press Association: Climate change is already having an impact across the world in areas ranging from human health to agriculture and wildlife, a major international report has found. Rising temperatures will increasingly threaten security, health and food supplies, and exacerbate poverty and damage species and habitats, the report from the Intergovernmental Panel on Climate Change (IPCC) warned. The world is in "an era of man-made climate change" and has already seen impacts of global warming on every continent and...