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TOPSHOT - Aerial view of flooded streets at the Navegantes neighborhood in Porto Alegre, Rio Grande do Sul state, Brazil on May 4, 2024. The challenge is titanic and against the clock: authorities and neighbours are trying to avoid an even greater tragedy than the one already experienced in the Brazilian state of Rio Grande do Sul, where 66 people died and 80,000 were displaced by the floods, according to the authorities. (Photo by Carlos Fabal / AFP) (Photo by CARLOS FABAL/AFP via Getty Images)

TOPSHOT - Aerial view of flooded streets at the Navegantes neighborhood in Porto Alegre, Rio Grande do Sul state, Brazil on May 4, 2024. The challenge is titanic and against the clock: authorities and neighbours are trying to avoid an even greater tragedy than the one already experienced in the Brazilian state of Rio Grande do Sul, where 66 people died and 80,000 were displaced by the floods, according to the authorities. (Photo by Carlos Fabal / AFP) (Photo by CARLOS FABAL/AFP via Getty Images)