This talk is part of our talk series on "The Role of Scientists on a Planet in Crisis". To sign up for upcoming talks, visit https://scientistrebellion.com/sr-talks-the-role-of-scientists-on-a-planet-in-crisis/. For more information on how get involved with Scientist Rebellion, head over to https://scientistrebellion.com/how-to-join/.

Introduction (00:00)
Prof. Tim Lenton's talk (02:40)
Q&A (40:40)
Scientist Rebellion talk (59:41)

--------------

Title: Positive tipping points to avoid climate tipping points

Abstract: Tipping points in climate science normally refer to small changes in the Earth system that unleash much broader, typically damaging impacts that accelerate climate change. The best-known examples are rising sea levels due to disintegration of the Greenland and West Antarctica ice sheets, or the release of methane deposits from the thawing Siberian permafrost. They help to underline the urgency of climate action. Today most people understand we must reduce emissions – and very quickly. In this webinar, Tim will summarise recent evidence regarding climate tipping points, which supports declarations that we are in a ‘climate emergency’. Then he will turn to identifying positive social tipping points that will need to be triggered to have any hope of limiting global warming to well below 2C.

Speaker: Prof. Tim Lenton is the Director of the Global Systems Institute and Chair in Climate Change and Earth System Science at the University of Exeter. Tim and his group at Exeter focus on understanding the Earth as a system, modelling evolution, ecology, and biogeochemistry, providing early warning of climate tipping points, and identifying positive tipping points towards sustainability.