Republican-invited witnesses reject consensus view of climate change, charge bias in federal funding. Democratic senators decry attempt to stir controversy about well-established climate findings.
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Effectively Evaluate Scientific Posters
In poster sessions, students and scientists convey research to an audience walking through a busy hall. To reach that audience, posters should be eye-catching, to the point, and easy to understand.
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Despite Stalled Regulations, U.S. Mercury Emissions Decline
Newly published measurements made downwind of West Virginia, Pennsylvania, and Ohio coal-burning plants reveal steep, unexpected drops in atmospheric mercury concentrations since 2006.
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Ships Bring More Than Cargo to Arctic Waters
A probe of ballast water in ships at an Arctic port finds hitchhiking organisms that polar warming could allow to invade the region's ecosystems in less than 40 years.
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Paris Climate Talks Could Spur Energy Sector Action
A robust climate pact from the United Nations meeting in Paris could urge nations and energy investors toward lower-emissions energy generation, the head of a global energy agency suggests.
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Tackling the Poster Hall
Here are some tips for going to a poster session, from knowing where to start to connecting with presenters—even if they're nowhere to be seen.
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Exoplanets: First Baby Pictures Unveiled
New observations of stars hundreds of light-years from Earth reveal evidence of planets still surrounded by disks of the primordial materials they grow from.
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Antarctic Sediment Plume Disrupts Deep-Water Community
Increased sedimentation from a melting glacier inhibits filter feeders in an Antarctic fjord.
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Active Mud Volcano Field Discovered off Southeast Alaska
A cruise to study landslide potential along an earthquake-prone fault found a surprising methane plume.
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U.S. Climate Change Negotiator Says Time Is Right for a Deal
With the United Nations climate change conference imminent, the U.S. special envoy for climate change optimistically outlined what sort of agreement could drive the transition to a low-carbon world.