When climate negotiators signed off on the historic Paris Agreement in December, they opened the door for countries to begin cross-border trading of greenhouse-gas emission reductions and signaled the advent of a price on carbon, which world leaders from Canada's Justin Trudeau to Ethiopia's Hailemariam Desalegn say is needed to get companies slashing greenhouse-gas emissions today.
Offsetting isn't a complete and total "fix" to the climate mess, and it isn't intended to be. Poorly implemented, it may even become the ploy the pope worries about. But done right, it's an incredibly effective tool in a very large toolbox, yet it will only deliver on a large scale if it's embedded in a functional, well-regulated, and global climate-change response.
It's a challenge faced by forest people around the world, and one that impacts all of us. Indeed, the loss of pristine forest in the tropics and its blow to biodiversity and ecosystem services are massive and irreversible. To make matters even worse, carbon emissions from deforestation compound the problem of climate change.
Two days after posting what may be the first rap song about ecosystem services, spoken-word artist Prince Ea has drawn nearly 25 million visitors to the video of his song "Sorry", which begins as a hypothetical apology to future generations but mutates into a call to action inspired by visits to forest carbon projects in Africa.