Citizens around the world are concerned about global warming. In fact, in all 25 nations surveyed by the Pew Global Attitudes project, majorities say they believe global warming is serious problem, and in 15 countries a majority say it is a “very serious” problem. Of the nations surveyed, citizens of Brazil are the most concerned with 90% saying climate change is a very serious problem. Two-thirds or more say global warming is a very serious problem in Argentina (69%), France (68%), South Korea (68%), India (67%), Turkey (65%), Japan (65%) and Mexico (65%). Concerns about global warming are lowest in some of the world’s leading polluters. Fewer than half of the people of the United States (44%) and Russia (44%) consider global warming to be a very serious problem, and only 30% of the Chinese express this concern (the lowest of any country surveyed). Read More

Russell Heimlich  is a former web developer at Pew Research Center.