Agriculture

"Land grabs" for rice production due to supply threats
September 28, 2009 10:10 AM - International Rice Research Institute

Recent interest in "land grabs" or the international acquisition of land to produce rice is sparked by a looming threat of inadequate rice supplies.

Climate Changes Outpacing Worst-case Projections
September 28, 2009 06:20 AM - Gerard Wynn, Reuters

Global temperatures may be 4 degrees Celsius hotter by the mid-2050s if current greenhouse gas emissions trends continue, said a study published on Monday. The study, by Britain's Met Office Hadley Center, echoed a U.N. report last week which found that climate changes were outpacing worst-case scenarios forecast in 2007 by the U.N.'s Intergovernmental Panel on Climate Change (IPCC).

Carbon Cycling Processes Of Inland Waters are Important to Understanding Climate Change

In a paper titled "The Boundless Carbon Cycle," published in the September issue of Nature Geoscience, scientists from the University of Vienna, Uppsala University in Sweden, University of Antwerp, and the U.S. based Stroudâ„¢ Water Research Center argue that current international strategies to mitigate manmade carbon emissions and address climate change have overlooked a critical player - inland waters. Streams, rivers, lakes, reservoirs, and wetlands play an important role in the carbon cycle that is unaccounted for in conventional carbon cycling models.

Burning Leaves is Bad News
September 25, 2009 03:43 PM - , Sierra Club Green Home

Remember the smell of burning fall leaves wafting through the air? Good memories, indeed, but best that they remain just memories. Burning leaves is bad news. This practice is now illegal – or at least highly discouraged – in most areas.

Greenhouse Gas Reporting Requirements Finalized
September 25, 2009 07:08 AM - R. Greenway, ENN

A major new regulatory requirement, starting January 1, 2010, will affect most large industrial and utility combustion sources in the US. Fossil fuel and industrial GHG suppliers, motor vehicle and engine manufacturers, and facilities that emit 25,000 metric tons or more of CO2 equivalent per year will be required to report GHG emissions data to EPA annually. This threshold is equivalent to about the annual GHG emissions from 4,600 passenger vehicles.

A revolution to combat world hunger
September 24, 2009 10:50 AM - Yojana Sharma, SciDevNet

Last week, the world mourned the loss of Norman Borlaug, the agronomist credited with saving as many as a billion people from starvation by introducing high-yield crop varieties.

China Pledges to Curb CO2 Emissions
September 23, 2009 06:57 AM - Paul Eckert and Claudia Parsons, Reuters

Chinese President Hu Jintao on Tuesday promised to put a "notable" brake on the country's rapidly rising carbon emissions, but dashed hopes he would unveil a hard target to kickstart stalled climate talks. The leader of the world's biggest emitter told a U.N. summit that China would pledge to cut "carbon intensity," or the amount of carbon dioxide produced for each dollar of economic output, over the decade to 2020.

Floodgates Might Not Save Venice
September 21, 2009 04:13 PM - Sylvia Poggioli, NPR

The construction of mobile floodgates aims to safeguard the 1,300-year-old island city of Venice. It's an ambitious engineering project, but some scientists say it may not be sufficient to protect Venice from rising sea levels due to climate change. Venice rose from mudflats in the middle of a lagoon which forms the largest wetland in the Mediterranean. One of the world's most endangered cities, it has been subject to increasing flooding due to sinking land — but also to rising sea levels.

River Deltas Sinking
September 21, 2009 06:19 AM - Science Daily

A new study led by the University of Colorado at Boulder indicates most of the world's low-lying river deltas are sinking from human activity, making them increasingly vulnerable to flooding from rivers and ocean storms and putting tens of millions of people at risk.

Arctic Geese Skip Migration
September 18, 2009 11:05 AM - Michael Reilly, Discovery News

In the Fall of 2007, tens of thousands of small arctic geese called Pacific brant (Branta bernicla nigricans) decided not to go south for the winter. For these long-haul migratory birds, it was a dramatic choice -- they usually spend the cold months munching their favorite eel grass in the waters off Mexico's Baja peninsula.

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