Simon Harrison
Contents contributed and discussions participated by Simon Harrison
NASA measure ice thickness at the North Pole - 1 views
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› View 1980 image › View 2012 image This interactive illustrates how perennial sea ice has declined from 1980 to 2012. The bright white central mass shows the perennial sea ice while the larger light blue area shows the full extent of the winter sea ice including the average annual sea ice during the months of November, December and January.
Northern exposure - 0 views
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Within four years, Arctic sea-ice cover has twice reached record lows IN THE 16th century English navigators, cut off from the riches of the Indies by the growing Spanish and Portuguese empires, sought to reach Asia by sailin
Hidden treasures - 0 views
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The melting of the Arctic is both a blessing and a curse THE Arctic's glaciers, including those of Greenland's vast ice cap, are retreating (see map above).
Deadly Tornado Season 2012 Begins « Fire Earth - 0 views
Pictures: Texas Tornadoes Toss Trailers, Flatten Homes - 0 views
Government defends David Cameron decision not to attend Rio+20 earth summit | Environme... - 0 views
Why Rio failed in the past and how it can succeed this time | Environment | guardian.co.uk - 0 views
Africa land deals lead to water giveaway | Global development | guardian.co.uk - 1 views
Climate change rate could be faster than thought, study suggests | Environment | guardi... - 0 views
Why climate change needs higher energy bills | Duncan Clark | Environment | guardian.co.uk - 0 views
1,200-Year-Old Cosmic Blast Captured in Japanese Trees - 0 views
GPS network is quick quake sensor - 0 views
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The US space agency Nasa is set to test a real-time network of GPS sensors that it hopes will lead to faster, more accurate earthquake analysis. Nearly 500 sensors in the Pacific-coast states of California, Oregon and Washington will be put to use.
Greenhouse gas levels pass symbolic 400ppm CO2 milestone - 0 views
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Monitoring stations in the Arctic detect record levels of carbon dioxide, higher than ever above 'safe' 350ppm mark The world's air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming pollutant. Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere.
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