When it comes to global warming, there are seven big contributors: the United States, China, Russia, Brazil, India, Germany and the United Kingdom. A new study published in Environmental Research Letters reveals that these countries were collectively responsible for more than 60 percent of pre-2005 global warming.
Fuente : http://www.eurekalert.org/pub_releases/2014-01/cu-...
Fuente : http://www.eurekalert.org/pub_releases/2014-01/cu-...