At the Paris climate conference, the second and final week has begun. If we have a deal by Friday, countries will:
- Formalize their individual pledges to cut greenhouse gas emissions
- Promise to show their work and be transparent along the way
- Pay for poor countries to afford new energy sources
- Schedule future meetings to "ratchet up" ambition down the road and speed up a global energy transition
Pledging an overhaul in the world's energy economy is one thing, but following through is a different story.
Marketplace Sustainability Correspondent Scott Tong explains.