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By Alister Doyle OSLO (Reuters) - Small fish play a big role in the oceans and catches should be cut sharply to safeguard marine food chains from plankton to blue whales, an international team of experts said on Thursday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - The United States demanded on Wednesday that the European Union exempt U.S. airlines from an EU law widening carbon permits to aviation, hardening a standoff over a scheme due to start in 2012. [More]

By Alister Doyle, Environment Correspondent BONN (Reuters) - Tighter limits on soot and smog provide a quick and easy way to fight global warming while protecting human health and raising crop output, a U.N. study said on Tuesday.

By Alister Doyle, Environment Correspondent BONN (Reuters) - Tighter limits on soot and smog provide a quick and easy way to fight global warming while protecting human health and raising crop output, a U.N. study said on Tuesday. [More]

By Alister Doyle, Environment Correspondent BONN, Germany (Reuters) - The world is off course in fighting climate change and governments need to boost green energies to build new momentum, the head of the U.N. panel of climate scientists said on Monday.

By Alister Doyle, Environment Correspondent OSLO (Reuters) - Rising forest density in many countries is helping to offset climate change caused by deforestation from the Amazon basin to Indonesia, a study showed on Sunday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - A planned building in Norway will be at the most northern location so far to generate more energy than it uses, demonstrating that "green" buildings can work anywhere, its backers said on Friday. A group including Norwegian aluminum maker Norsk Hydro and Swedish construction group Skanska said it would construct the six-to-seven-story building in Trondheim, with offices and shops covering up to 9,000 sq meters (96,880 sq ft). [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - Quickening climate change in the Arctic including a thaw of Greenland's ice could raise world sea levels by up to 1.6 meters by 2100, an international report showed on Tuesday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - U.S. and Russian greenhouse gas emissions fell in 2009, according to data submitted to the United Nations, as economic decline cut the use of fossil fuels

By Alister Doyle, Environment Correspondent OSLO (Reuters) - The United Nations should promote "hydro-diplomacy" to defuse any tensions over water in regions like the Middle East and North Africa where scarce supplies have the potential to spark future conflicts, experts said Sunday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - Mass deaths of bee colonies in many parts of the world may be part of a wider, hidden threat to wild insect pollinators vital to human food supplies, a U.N. study indicated on Thursday

By Alister Doyle, Environment Correspondent OSLO (Reuters) - The number of projects for capturing greenhouse gases from power plants and factories edged up in 2010 despite soaring costs and slow progress in U.N.-led efforts to slow climate change, a study showed on Tuesday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - Many farmers in developing nations can double food production within a decade by shifting to ecological agriculture from use of chemical fertilizers and pesticides, a U.N. report showed on Tuesday. [More]

By Alister Doyle, Environment Correspondent OSLO (Reuters) - A plan by almost 200 countries to step up efforts to fight climate change is set to miss a March deadline for starting work on a green fund to help developing nations, delegates said on Wednesday. [More]