People walk by the entrance of the COP 21, the United Nations conference on climate change at Le Bourget, on the outskirts of Paris on December 3, 2015. The conference is set to end later this week. 
People walk by the entrance of the COP 21, the United Nations conference on climate change at Le Bourget, on the outskirts of Paris on December 3, 2015. The conference is set to end later this week.  - 
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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.  

 

Follow Kai Ryssdal at @kairyssdal