RIO DE JANEIRO (AP) — Prince William is preparing to announce the winners of his annual Earthshot Prize in Rio de Janeiro on Wednesday evening, the centerpiece of a three-day environment-focused trip in the Brazilian megalopolis before he heads to the United Nations Climate Summit COP30.

The Prince of Wales began his trip in Rio on Monday. Since then, he has met with former soccer player Cafu in Maracana stadium, played volleyball on and visited Sugarloaf Mountain.

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