organization:max planck institute for meteorology in hamburg

Warmer Mediterranean turns the Sahel green
▻http://phys.org/news/2016-07-warmer-mediterranean-sahel-green.html

http://cdn.phys.org/newman/gfx/news/hires/2016/warmermedite.jpg

Climate change can have mixed consequences: It would appear that the warming of the Mediterranean region, which has brought greater heat and drought to the countries there for around 20 years, is behind an increase in rainfall in the Sahel region. As researchers from the Max Planck Institute for Meteorology in Hamburg report in the current edition of the journal Nature Climate Change, due to higher sea temperatures in the Mediterranean more moisture from the eastern Mediterranean is reaching the southern edge of the Sahara at the start of the West African monsoon in June. Moreover, according to the current study, the future development of precipitation in the Sahel region is crucially dependent on the warming of the Mediterranean.

#climat #sahel #méditerranée

Space mirrors will dry out US and Eurasia | New Scientist
►http://www.newscientist.com/article/mg21428695.700-space-mirrors-will-dry-out-us-and-eurasia.html

INSTALLING huge mirrors in space would help reverse global warming, but they would come at a price: less rain for the Americas and northern Eurasia.

Previous studies have shown that geoengineering cannot restore both temperature and rain to previous levels, but they could not specify what a geoengineered climate would look like.

Hauke Schmidt of the Max Planck Institute for Meteorology in Hamburg, Germany, and his colleagues played out the same simple scenario in four different climate models.

#geoengineering