PBS News Hour

Why Madrid climate change talks failed to deliver

Climate talks in Madrid ended Sunday with little agreement on addressing what many say is the single greatest challenge facing humanity. At the annual gathering, known as COP, the world’s largest polluters were unable to agree on stronger plans to curb their emissions. William Brangham talks to Helen Mountford of the World Resources Institute about why the talks failed to achieve their goals.

Why Madrid climate change talks failed to deliver

6m 27s

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