Keeping global temperatures from rising more than 1.5˚C, instead of the standard 2˚C goal, could reduce deaths due to ambient air pollution.
The news: A study in Nature Climate Change analyzed the health benefits of reduced exposure to particulate matter and other pollution from fossil-fuel plants in 154 of the world’s biggest cities. Expediting the shift to clean energy could reduce levels enough to save as many as four million lives in Delhi, India, alone over the coming decades.
Bigger picture: There are many other reasons to strive for the lower temperature target, including decreasing the risks of far worse heat waves, droughts, wildfires, and more. A report in Environmental Research Letters earlier this month found that limiting temperature increases to 1.5 ˚C would also prevent sea-level rise from inundating land where some five million people live today.
But: Problem is, the world isn’t nearly on track to hit even the 2˚C target currently (see “At this rate, it’s going to take nearly 400 years to transform the energy system”).
These deep-sea “potatoes” could be the future of mining for renewable energy
Battery materials dot the ocean floor. Should we go get them?
The hottest new climate technology is bricks
Heat batteries could help cut emissions by providing new routes to use solar and wind power.
This abundant material could unlock cheaper batteries for EVs
Sodium-based batteries could start hitting the market this year, if companies follow through on their plans.
The Green Future Index 2023
The Green Future Index 2023 is the third edition of the comparative ranking of 76 nations and territories on their ability to develop a sustainable, low-carbon future.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.