Air date: 2015-01-01

Runtime: min

Mathematicians Dr. Hannah Fry, Prof. Norman Fenton and Prof. David Spiegelhalter reveal the three numbers that tell the story about the past, present and future of the earth's climate.

Air date: 2015-01-01

Runtime: min

A look at scientists' claims about human contribution to global warming, and how statistician Leonard Tippet's investigation into snapping cotton threads helps predict extreme weather.