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Page 22 and onwards states the negative impacts of over extraction of ground water resources

Soil degradation causes and impacts written by the WWF website

Britain will become a net importer of wheat for the first time in a decade this year because of bad weather, the National Farmers' Union has said. The prolonged cold weather is expected to impact this autumn's harvest The average yield fell from 7.8 tonnes a hectare to 6.7 tonnes last summer. Looking ahead to the 2013 harvest, farmers had only managed to get three quarters of the planned wheat planted this year, so the UK was already 25% down on potential production.

Includes video and good facts : Approximately 11 million gallons, or 257,000 barrels, of oil spilled into Prince William Sound, and approximately 1,300 miles of shoreline were impacted. Congress passed legislation to improve tanker safety and increase spill prevention and response preparation in the still-recovering sound.

Scientists have identified thousands of sites in the Arctic where methane that has been stored for many millennia is bubbling into the atmosphere. The methane has been trapped by ice, but is able to escape as the ice melts. Writing in the journal Nature Geoscience, the researchers say this ancient gas could have a significant impact on climate change.