This is the work of our lifetime: Ayana Elizabeth Johnson urges action after new UN climate report

A United Nations report has found that the world will warm to 1.5 degrees Celsius above pre-industrial levels. Climate solutions advocate Ayana Elizabeth Johnson urges a quicker implementation of known strategies - and determination rather than despair. Transcript JOEL ROSE, HOST: This week, the United Nations report found that the world will warm to 1.5 degrees Celsius above pre-industrial levels in the next few years. This is a big deal. We've known we've been on track for that threshold, but this report is far more definitive than any data we have had so far. The bleak status update comes just days after a melting glacier collapse in Nepal and Tibet, killed more than 1,000 people with thousands still missing.But the U.N. report, called Limiting Overshoot, also said there is still a path for return. So we've called up Ayana Elizabeth Johnson, founder of the Urban Ocean Lab think tank and a conservation strategist. She has written a book all about climate solutions called "What If We Get It Right?" and is the host of a podcast of the same name with Bill McKibben. Welcome to the program.AYANA ELIZABETH JOHNSON: Thanks for having me.ROSE: The 1.5 degree limit was the target agreed t...