Barak Obama wants the world to know that the U.S can deliver on its own commitments.
The U.S president is due to arrive in Paris late Sunday where he hopes to marshal marshal strong global action against climate change at the historic conference.
But he’s not going to be alone. More than 150 world leaders will try to negotiate an agreement aimed at avoiding a calamitous increase in global temperatures.
Obama wants to lead the world by example on climate change.