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Climate change

Poor nations will feel climate change before rich ones

A new tool puts numbers to what it will take for nations to notice global warming.

The news:  Nature reports that a model built at Oxford University predicts how much warming will be required at different points around the globe to cause obvious changes due to climate change—like extreme temperatures or heavy rains.

The findings: In large parts of Africa, India, and South America, climate change will start to bite once average global temperatures rise by 1.5 °C. Mid-latitude regions, meanwhile, won’t feel the same impact until the mercury rises by 3 °C.

Why it matters: The nations hit first are also the poorest—and therefore the least able to prepare for the impact of climate change. That’s not a new idea, but the analysis provides a way of forecasting where international attention ought to lie.

Deep Dive

Climate change

A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate

Make Sunsets is already attempting to earn revenue for geoengineering, a move likely to provoke widespread criticism.

Radar and laser breakthroughs serve humanitarian ends

Innovations in directed-energy systems could save lives and aid disaster recovery.

This is where Tesla’s former CTO thinks battery recycling is headed

JB Straubel speaks about his company, Redwood Materials, and what challenges loom for batteries.

Why EVs won’t replace hybrid cars anytime soon

Plug-in hybrids won’t get the world to zero emissions, but they can help cut climate impacts somewhat. Toyota is betting they’ll stay in the mix for a while.

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Illustration by Rose Wong

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