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Chevron lawyers sanctioned by judge in Amazon pollution suit
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BP chose less expensive, higher-risk routes before oil well blowout, scientists say
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Troposphere is warming too, decades of data show
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Thousands protest against 'Chernobyl on wheels'
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War over Monsanto gets ugly
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Climate change in the Solomon Islands
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Dead coral found near site of oil spill
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Geologists: Earth will take 100,000 years to recover from global warming
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Global extinction crisis looms, new study says
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Furious growth and cost cuts led to BP accidents
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UN: Freshwater losses pose risks for food, health
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Tea Party climate change deniers funded by BP and other major polluters
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Massive stretches of weathered oil spotted in Gulf of Mexico
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The Arctic shifts to a new climate pattern in which 'normal' becomes obsolete
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Warmer Arctic temps tied to US snowstorms
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Divisions cloud Biodiversity talks
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Amazon drought emergency widens
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UN: Global farm methods 'recipe for disaster'
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EPA seeks to block West Virginia mine
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Synthetic chemicals pose growing threat to global water supply
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Report shows humans consuming 1.5 Earths
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BP's lawyers helped prepare its spill investigation
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Coal companies charged with massive violations of water pollution laws in Kentucky
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BP and NOAA dispatch PR teams to schools
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High levels of cancer-causing chemicals recorded since BP spill
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One in five plant species face extinction
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Obama under fire for grossly underestimating Gulf oil spill
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GM corn 'has polluted rivers across the United States'
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Australian activists close down largest coal port
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DOJ refuses to revoke BP's probation over safety violations at Texas refinery
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About 100 arrested in mountaintop mining protest
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Retreating sea ice blamed for crowded shores
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EPA: Air pollution standards fail to protect environment
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California braces for showdown on emissions
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Republican hopefuls deny global warming
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EPA criminal investigations sag under Obama
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Nuclear waste shipping on Great Lakes protested
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BP report on oil disaster met with skepticism
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Study: Coal-related health problems will lead to 13,500 premature deaths this year in US
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Birds dying in oilsands at 30 times the rate reported, says study