In climate change, as you say, there are bad tipping points, like when a forest might be lost irreversibly, or ice shelves are tipped into irreversible melting and disintegration. An example I give is, if you lean back too far in your chair, there's a certain point where just a tiny bit further and you'll fall over backwards. SS: A tipping point in general is a point where a small input change leads to a large change in outcome. What is a tipping point, and why are some of them good? MH: We're used to hearing about dangerous tipping points in climate change, like the loss of sea ice or forests. Just how important are positive tipping points in efforts to tackle climate change? And are we really about to pass an important one in 2023?įuture Planet editor Martha Henriques puts these questions to Simon Sharpe, author of Five Times Faster: Rethinking the Science, Economics, and Diplomacy of Climate Change.
"Clean power can actually go to replacing fossil fuels, instead of just meeting rising demand." "This marks the point where power sector emissions stop rising," Wiatros-Motyka and her colleagues write. It's a crucial moment in the effort to tackle climate change, and the report, written by Małgorzata Wiatros-Motyka, senior electricity analyst at Ember, and colleagues, argues that we are fast approaching a positive "tipping point" in the effort to curb climate change. Emissions are set to fall because expansion in renewable energies such as solar and wind is outstripping that growth in demand. That's despite the fact that the world's demand for electricity is still growing. Greenhouse gas emissions from the power sector, the largest source of the world's emissions, are expected to fall for the first time, according to London-based think tank Ember. This year, the world is predicted to pass a critical turning point in renewable energy.
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