But as world leaders wrapped up a two-day meeting kicking off the two-week UN climate change conference in Glasgow, British Prime Minister Boris Johnson said: "There is still a very long way to go."
British Prime Minister
Boris Johnson on Tuesday said he was "cautiously optimistic" about securing a deal to stop runaway global warming at COP26.
But as world leaders wrapped up a two-day meeting kicking off the two-week UN climate change conference in Glasgow,
Johnson said: "There is still a very long way to go."