In 2025, scientists warned the ‘planetary boundary’ for ocean acidification had been crossed. This is what that means and why ...

Scientists have known for decades that soaring atmospheric carbon dioxide emissions are causing changes in ocean chemistry, threatening marine life and ecosystems. In June 2025, a study found that ...

Researchers have found that ocean acidification entered a "danger zone" in 2020, suggesting increased carbon dioxide levels have caused Earth to breach another planetary boundary. When you purchase ...

Welcome to today’s edition of Boiling Point. I’m Ian James, a reporter on The Times climate and environment team, filling in for my colleague Sammy Roth. As the burning of fossil fuels and other human ...