The world's foremost climate science body has concluded, in a landmark new report, that humankind has the technology to stop a climate catastrophe--but only with bold government action. Now it's up to the world's people to demand that their leaders listen to the scientists. Avaaz is sending its global petition to national leaders around the world--along with personalized messages from citizens of every country on earth.

Petition to world leaders: Climate change is the greatest threat facing our world today--and we are almost out of time to stop it. You must tackle this problem now, decisively and together. Start working toward a new global agreement this year. Set binding global targets for emissions to avert catastrophic climate change. Take bold action immediately--and we will join our efforts with yours.

Sign the petition and send a message to your national leader!

  have signed the petition. Help us get to 175,000

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