Friday 18 April 2008

Yr12 and 13: Climate Change

WASHINGTON - Planet Earth continues to run a fever. Last month was the warmest March on record over land surfaces of the world and the second warmest overall worldwide. For the United States, however, it was just an average March, the National Oceanic and Atmospheric Administration reported Thursday.

NOAA's National Climatic Data Center said high temperatures over much of Asia pulled the worldwide land temperature up to an average of 40.8 degrees Fahrenheit (4.9 degrees Celsius), 3.2 degrees (1.8 C) warmer than the average in the 20th century. While Asia had its greatest January snow cover this year, warm March readings caused a rapid melt and March snow cover on the continent was a record low. Global ocean temperatures were the 13th warmest on record, with a weakening of the La Nina conditions that cool the tropical Pacific Ocean. Overall land and sea surface temperatures for the world were second highest in 129 years of record keeping, trailing only 2002, the agency said. Warming conditions in recent decades have continued to raise concern about global climate change, which many weather and climate experts believe is related to gases released into the atmosphere by industrial and transportation processes

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