ارتفاع منسوب مياه البحار يتسارع منذ 1990
montreux, SWITZERLAND: TO GO WITH AFP FRENCH STORY BY PATRICK BAERT: Mean nitrogen dioxide (NO2) pollution map for 2006, measured by Envisat's Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) instrument, which records the spectrum of sunlight shining through the atmosphere. NO2, a mainly man-made gas, can cause lung damage and respiratory problems in the case of excess exposure. Envisat is an Earth observation satellite launched on March 2002 and fitted with a unique combination of sensors that will vastly improve the range and accuracy of scientific measurements of the atmosphere, oceans, land surface and ice. Over 900 scientists from around the world gathered the Envisat Symposium 2007 in Montreux to share results of project activities on the European Space Agency?s Earth Observation satellites and in particular Envisat. AFP PHOTO / ESA (Photo credit should read ESA/AFP/Getty Images)