It’s been a landmark year for global leadership in the effort to address climate change.
China and the United States - the world’s largest economies and emitters - have submitted plans to reduce the emissions responsible for the crisis.
Businesses of all stripes have called for a massive transition to renewable energy. Polls in countries around the world show citizens want action.
And, in November, the international community will gather in Paris to try and hash out an agreement committing all nations to the effort for decades to come.