Africa News: A new report by the UN Environment Programme (UNEP) has for the first time mapped the multiple impacts of pollution; alien infestations; over-exploitation and climate change on the waters of the seas and oceans. The report entitled "In Dead Water" warns that Global Warming is adding to pollution and over-harvesting impacts on the World’s Key Fishing Grounds The report, the work of UNEP scientists in collaboration with universities and institutes in Europe and the United …