Oceano Ártico atinge ponto de não retorno com a queda nos níveis de nitrato

28 de maio de 2026

Reportado por IA

O Oceano Ártico ultrapassou um ponto de não retorno por volta de 2009, de acordo com um novo estudo que mostra que a perda de gelo marinho reduziu drasticamente os níveis de nitrato na água.

Pesquisadores da Universidade de Edimburgo analisaram mais de 20 anos de dados do Estreito de Fram. Eles descobriram que o declínio no nitrato começou à medida que o gelo marinho recuava rapidamente, expondo águas rasas a mais luz solar e acelerando um processo chamado desnitrificação bentônica, que remove o nutriente da água do mar.

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Oceano Ártico atinge ponto de não retorno com a queda nos níveis de nitrato

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