Massive digital clock counts down to a deadline in the climate crisis

Massive digital clock counts down to a deadline in the climate crisis

In New York City’s Union Square, a giant digital clock has been reprogrammed to count down the amount of time left to take action to prevent the worst effects of global warming from becoming irreversible. Co-creators of the Climate Clock, Gan Golan and Andrew Boyd, join CBSN to discuss what inspired their idea and how the countdown is being calculated.