We at Oxfam see it every day: climate change is increasing hunger and poverty around the world.

And this week at the climate summit in Copenhagen, President Obama and other leaders are making decisions that will affect the world's poor for decades to come.

Please sign our petition to President Obama:

"President Obama, we need a climate deal that helps the world's poorest people adapt to global warming, saves communities that are hardest hit, and offers the opportunity to be part of a global green economy."