InsideClimate: Intergovernmental Panel on Climate Change, the world's leading climate science body, declared in a new report that global warming is wreaking havoc "on all continents and across the oceans," with the worst yet to come. But by far the most severe impacts will strike the poorest countries that bear little or no historical responsibility for causing climate change, the report said. "Those countries who have contributed least to the manifestation of this problem are in jeopardy of being the most vulnerable...