Earth Science News  





. Study: CO2, methane up sharply during 2007

disclaimer: image is for illustration purposes only
by Staff Writers
Washington, April 28, 2008
A U.S. government study shows global levels of atmospheric carbon dioxide increased by 19 billion tons last year, while methane rose by 27 million tons.

National Oceanic and Atmospheric Administration scientists said the findings are part of the agency's annual update of its greenhouse gas index that tracks data from 60 sites around the world.

Researchers said 20 percent of the 2007 fossil fuel emissions of carbon dioxide are expected to remain in the atmosphere for thousands of years.

Methane levels rose last year for the first time since 1998. NOAA scientists said methane is 25 times more potent as a greenhouse gas than carbon dioxide but there's far less of it in the atmosphere.

Rapidly growing industrialization in Asia and rising wetland emissions in the Arctic and tropics are the most likely causes of the methane increase, said NOAA scientist Ed Dlugokencky.

"We're on the lookout for the first sign of a methane release from thawing Arctic permafrost," said Dlugokencky. "It's too soon to tell whether last year's spike in emissions includes the start of such a trend."

Community
Email This Article
Comment On This Article

Related Links
Climate Science News - Modeling, Mitigation Adaptation




Tempur-Pedic Mattress Comparison

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News
Artificially cooling Earth may prove perilous: study
Washington (AFP) April 24, 2008
Radical proposals to inject sulfur particles into the Earth's stratosphere to cool it down and battle global warming could instead badly damage the ozone layer, a study warned Thursday.

.
Get Our Free Newsletters Via Email
  



  • 70 dead in China train crash: state media
  • Big Tokyo quake would cause human gridlock: study
  • Disasters In Small Communities: Researchers Discuss How To Help
  • Raytheon Develops Advanced Concrete Breaking Technology For Urban Search And Rescue

  • Study: CO2, methane up sharply during 2007
  • Emissions Irrelevant To Future Climate Change
  • Artificially cooling Earth may prove perilous: study
  • ALOS Will Provide Advanced Data To Help Latin America Better Adapt To Climate Threats

  • Successful Cooperation Extends Dragon Programme
  • NASA Web Tool Enhances Airborne Earth Science Mission
  • NASA Satellites Aid In Chesapeake Bay Recovery
  • NASA selects Landsat spacecraft contractor

  • Analysis: Turkmenistan opens up
  • US secretary concedes biofuels may spur food price rises
  • BP, Santelisa Vale, And Maeda Unveil Plans To Invest In Biofuels
  • White Is The New Black Gone Green...When It Comes To Roofs

  • International Health Experts To Enlist The Public In War On African Malaria
  • Analysis: Indonesian-U.S. bird flu sharing
  • Flu Tracked To Viral Reservoir In Tropics
  • China rejects human-to-human bird flu report

  • Are Ice Age Relics The Next Casualty Of Climate Change
  • Illuminating Life
  • Improved Rock-Dating Method Pinpoints Dinosaur Demise With Unprecedented Precision
  • Scientists say polar bears at risk, but threat not imminent

  • Researchers Look To Make Environmentally Friendly Plastics
  • Europe Spends Nearly Twice As Much As US On Nanotech Risk Research
  • Australian state to ban plastic bags
  • Olympics: Australia to test Beijing-bound athletes for asthma

  • Dawn Of Human Matrilineal Diversity
  • Humans lived in tiny, separate bands for 100,000 years
  • Geometry Shapes Sound Of Music
  • 'Sims' creator lets people play god in new computer game

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2007 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement