Today’s Solutions: December 19, 2025

Weeds poke listlessly from the flat, rocky earth as the temperature climbs to the mid-90s. On a cloudless March afternoon, the blue horizon stretches out uninterrupted, as if even birds are too weary to fly. On this unforgiving patch of southern India, millions of silver-gray panels glimmer in the sun, the start of what officials say will be the biggest solar power station in the world.

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