- The deal will go into effect in 30 days
- "This gives us the best possible shot to save the one planet we've got," Obama said.
Speaking formally from the Rose Garden, Obama touted the Paris Agreement, which was struck last year and creates a legally binding agreement to fight climate change. Obama and Chinese President Xi Jinping submitted their countries' plans
to the United Nations last month, which formally ratified the agreement. And since the European Union signed off
on the accord this week, the deal is now set to go into effect in 30 days.
"Today, the world has officially crossed the threshold for the Paris Agreement to take effect. Today the world meets the moment," Obama said. "No nation, not even one as powerful as ours, can solve this challenge alone. All of us have to solve it together."
The United States and China are the world's largest carbon polluters, but the deal needed to be ratified by 55 nations that account for at least 55% of global greenhouse gas emissions. The agreement limits average global warming to 2 degrees Celsius above pre-industrial temperatures.
"This gives us the best possible shot to save the one planet we've got," Obama said.
The deal has been criticized by Republicans, including Donald Trump, who has said that he would "cancel" it if elected.