But don't celebrate too much. There's still a long way to go.
The UNICEF Goodwill Ambassador unleashes her inner Ron Burgundy to drive home the impact of climate change.
Eighty-one cities announced an ambitious partnership with MasterCard this week to reduce emissions.
Those promises likely won't cost them their billions of dollars in lending business.
Michael Bloomberg and England's chief central banker have a message for the financial industry.
A growing population means greater environmental strain. The solution could be rooted in women's rights.