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Biden vows to rejoin the international accord the day he enters office—the first step in making up for four lost years of climate progress.
Every year the contest attracts entries capturing rare and unusual moments in the avian world. Here are this year's highlights.
Nature-based climate solutions can deliver one third of the emission reductions needed to meet the Paris Climate Agreement.
Its intertidal mudflats crowded with migratory shorebirds each year, this California bay is threatened by the aquaculture industry.