Monthly NASA sea level rise graphic Sea level rises are caused by two aspects of global warming: the melting of ice over land, and the expansion of seawater as it warms. Space missions Jason 1 and Jason 2 both monitor these rising sea levels, and NASA has put together some interesting graphics to demonstrate the historical changes in sea level changes, both over the 20th century and over the last couple of decades.
Arctic summer sea ice extent controlled by atmospheric transport The retreat of the summer sea ice in the Arctic region is one of the most dramatic signs of the ongoing climate change. Although the ice cover is steadily decreasing it also shows a large variability from year to year. In a new study researches examined the variability of the Arctic sea ice.
Stockholm University, April 29, 2013
Satellite data provide insight into melting Arctic ice In September 2012, the smallest ice spread to date in the Arctic was recorded. With data from satellites, scientists at SMHI have analysed changes in the atmosphere, and then compared the conditions for the ice melt in 2012 with 2007, the previous record low for ice spread.
Summer melt season getting longer on Antarctic Peninsula New research from the Antarctic Peninsula shows that the summer melt season has been getting longer over the last 60 years. Increased summer melting has been linked to the rapid break-up of ice shelves in the area and rising sea level.
ScienceDaily.com, March 27, 2013
NASA's Analysis of 2012 Global Temperature NASA's analysis of Earth's surface temperature found that 2012 ranked as the ninth warmest year since 1880. NASA scientists compare the average global temperature each year to the average from 1951 to 1980. This 30-year period provides a baseline from which to measure the warming Earth has experienced due to increasing atmospheric levels of heat-trapping greenhouse gases.
Youtube / NASA, March 26, 2013
New cloud computing network could cut GHG emissions from ICT The growing use of Information and Communication Technology (ICT) services is producing an increasing amount of greenhouse gas (GHG) emissions. New research has proposed a network model spanning Europe, USA and Canada that uses ‘cloud computing’ to supply renewable energy to IT data centres.
"Science for Environment Policy": European Commission DG Environment News Alert Service, March 21, 2013