Politicians are doing more to combat climate change than they are given credit for, according to a report.
It says 32 out of 33 countries surveyed have introduced, or are producing, significant climate-related laws.
Out of these, 18 nations are making "significant" progress, with some emerging economies taking a lead.
The Globe group of parliamentarians, which published the report, admits that emissions are still growing at a dangerous level.
But Globe president John Gummer, the former Environment Secretary, says progress on a national level gives some cause for optimism.
"The tide is beginning to turn decisively on tackling climate change, the defining material challenge of this century," he said.
"This is a game-changing development …taking place across each and every continent."