Nicolas Sarkozy, in his victory speech as France's president-elect, said the United States can "count on our friendship" but urged it to take the lead against climate change.
Speaking to hundreds of cheering supporters, the conservative also vowed to be "the president of all of the French" and warned that the European Union must not be "the Trojan horse" for globalization's ills.
To France's "American friends," Sarkozy said: "They can count on our friendship."
"A great nation, like the United States, has a duty not to block the battle against global warming but - on the contrary - to take the lead in this battle, because the fate of the whole of humanity is at stake."
He said the issue would be a priority for France.