Recalling a football reference he made before the
G20 meeting in Rome where "team world" were 5-1 down in a match against climate change, the PM said humanity has "pulled back a goal, or perhaps even two".
He added: "I think we are going to be able to take this thing to extra-time, because there's no doubt that some progress has been made."
Mr Johnson also warned that world leaders must not "think in any way that the job is done" and that the battle to keep global warming lower than 1.5C above pre-industrial levels is a "team game".
"I think everybody's working very hard together to keep 1.5 alive," he said.
The prime minister also dismissed suggestions that the country could hold a referendum on the government's net zero plans.
"I think this country has probably had enough referendums to be going on with for a while, that's my general view on the matter," he said.
Addressing reporters, the PM dismissed concerns that
Chinese President Xi's absence from the summit has hampered its chance of success, saying it "doesn't mean the Chinese are not engaging".
Mr Johnson said
China has already made "a substantial commitment" in pledging to move to net zero by 2060 or before, but added that more "commitments" are needed.
The prime minister also dismissed suggestions that the country could hold a referendum on the government's net zero plans.
"I think this country has probably had enough referendums to be going on with for a while, that's my general view on the matter," he said.
Addressing reporters, the PM dismissed concerns that
Chinese President Xi's absence from the summit has hampered its chance of success, saying it "doesn't mean the Chinese are not engaging".
Mr Johnson said
China has already made "a substantial commitment" in pledging to move to net zero by 2060 or before, but added that more "commitments" are needed.