15 jun 2026
The Download: cutting AC emissions, and nature’s drug designer
This is today’s edition of The Download , our weekday newsletter that provides a daily dose of what’s going on in the world of technology. These new solid-state ACs promise a cool future. Scientists aren’t so sure. After three years of record-breaking heat and another scorcher underway, air-conditioning isn’t going anywhere. That’s good for our health, but bad for the planet: it already accounts for 7% of global electricity use and 3% of greenhouse-gas emissions. Feeling the heat, scientists and startups are hoping to amp up solid-state cooling.
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