A recently released UN study polled young people age 12-18 in six different countries, finding that 90% agree that “World leaders should do whatever it takes to tackle climate change”.
Here’s a graph:

That’s a pretty cool number. Especially seeing as young people are the leaders of the future, and voters a la Power Vote, this is a number we can use in our effort.
Original report, United Nations Environment Programme: http://www.unep.org/pdf/survey_results.pdf
Cool survey? yes. Browse it, use it.