Kerry told reporters that he had listened to Putin's speech.

He believes that the Russian leader "was rational."

“He expressed some worthy progressive ideas about those issues that we can certainly explore and cooperate with each other.

And he talked about this possibility, ”TASS quotes the special envoy of the US President.

During the online climate summit, Putin said that the Russian side invites all countries to join joint scientific research and jointly invest in practically significant climate projects.