There is mounting evidence that tipping points in the Earth system could become more likely than first thought. The threat of exceeding tipping points would have irreversible impact on the interconnected biophysical systems of the planet. In this webinar, Tim Lenton Director of the Global Systems Institute and Chair in Climate Change and Earth System Science at the University of Exeter, summarises recent evidence regarding climate tipping points which supports declarations that we are in a ‘climate emergency’. He shares his latest results identifying a human climate niche projecting how it will move in the future before identifying positive social tipping points that will need to be triggered to have any hope of limiting global warming to well below 2C.