Nigel Topping

Hosts Lindsay Levin, Chris Anderson and Bruno Giussani speak at Session 1 of the TED Countdown Summit on October 12, 2021 in Edinburgh, Scotland. (Photo: Gilberto Tadday / TED)

Maria Gallucci comes ferrying good news: there’s a way to clean up the shipping industry that’s green, economically lean and can be made with planet-friendly machines. She speaks at TEDMonterey: The Case for Optimism on August 2, 2021. (Photo: Bret Hartman / TED)

Countdown is a global initiative to accelerate solutions to the climate crisis. Watch the talks, interviews and performances from the Countdown Global Launch at ted.com/countdown.

For week 2 of TED2020, global leaders in climate, health and technology joined the TED community for insightful discussions around the theme “build back better.” Below, a recap of the week’s fascinating and enlightening conversations about how we can move forward, together.