Climate change is sending the world hurtling towards a series of catastrophic tipping points, which risk setting off feedback loops that lock the world into irreversible climate change. That's the bad news. The good news, however, is that there is also a series of "positive tipping points," according to an analysis published Thursday by researchers from an international group of institutions including the University of Exeter and the World Resources Institute's Systems Change Lab, with support from the Bezos Earth Fund. These are defined as small climate actions that could have a snowball effect, prompting emissions cuts across some of most polluting sectors of the global economy. 1. Electric vehicles A tipping point is already "very close" for electric vehicles, the report says. EVs made up 10% of all cars sold last year, driven by sales in China and Europe. To be on track for a net-zero fleet by 2050, EVs must account for around 60% of new passenger car sales by 2060, according to the report, which says mandates for EV sales could be a "particularly powerful policy" to bring forward a tipping point. As demand ramps up, costs of production go down, including for lithium batteries, which have seen costs fall by 90% over the last 10 years, according to the report. 2. Plant-based proteins Meat has a huge climate impact. Livestock farming accounts for 14.5% of human-caused, planet-warming emissions. Plant-based proteins -- things like beans, lentils, peas and nuts -- produce up to 90% fewer emissions than meat. They are also catching up with meat in terms of cost, as well as flavor. But they currently have a low market share. 3. Green fertilizer Ramping up the production of "green fertilizer" could not only slash emissions from the production of agricultural fertilizer, but also help kickstart a green hydrogen economy, according to the report Ammonia, a key ingredient in commercial fertilizer, is currently produced using fossil fuels and accounts for about 1.8% of global carbon emissions. But it could be replaced by green ammonia, which is produced with green hydrogen using renewable energy. While currently more expensive than conventional ammonia, green ammonia is projected to be economically viable within the decade, according to the report, which suggests mandates for 25% of ammonia to be green would help reduce food system emissions as well as speed up the growth of the green hydrogen sector. https://amp.cnn.com/cnn/2023/01/19/world/three-climate-solutions-wri-intl/index.html