DNR weekend reading: Fish poop may play critical role in oceans’ carbon cycle

 South Baldy Lookout
Moon over South Baldy Lookout in Pend Oreille County: Photo: Kent Contreras/US Forest Service.

What’s a weekend without some interesting reading about science, climate and the environment? Here’s are the DNR Weekend Reading selections:

Virginia Institute of Marine Science: Study shows small fish can play a big role in the coastal carbon cycle
Small forage fish like anchovies can play an important role in the “biological pump,” the process by which marine life transports carbon dioxide from the atmosphere and surface ocean into the deep sea—where it contributes nothing to current global warming.

Science Daily: Negative Impact of Nutrients On Coastal Ecosystems: Environment Begins ‘Falling Apart’ in Less Than 7 Years
A multi-disciplinary national research group recently discovered the impact of nutrient enrichment on salt marsh ecosystems causes the marshes to deteriorate at a rate much faster than previously thought.

Newswise.com: Dire Drought Ahead, May Lead to Massive Tree Death
Using a comprehensive tree-ring data set from A.D. 1000 to 2007, a University of Tennessee geographer finds that the United States has suffered several ‘mega-droughts’ in the last 1,000 years in the Southwest. The most recent drought–beginning in the late 1990s and lasting through the following decade,  could become one of the worst, if not the worst, in history, he suggests.

Science Daily: Too Late to Stop Global Warming by Cutting Emissions? Scientists Argue for Adaptation Policies
Governments and institutions should focus on developing adaptation policies to address and mitigate against the negative impact of global warming, rather than putting the emphasis on carbon trading and capping greenhouse-gas emissions, argue two scientists in a paper published this month in the journal Nature Climate Change.

NOAA-National Climatic Data Center: September 2012 was one of the warmest on record
Last month tied with September 2005 as the world’s warmest September on record, NOAA reports.

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