Science

Earth shifted among five 'mega-climate' states over 539 million years, with extinctions spiking near transitions

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 23/09/2026, 19:10:24 UTC.

Briefings

Research indicates Earth's climate over 539 million years remained within five recurring states, with mass extinctions occurring during transitions between them. Led by Corinne Myers at the University of New Mexico, the study challenges previous views of random climate shifts. Key dates include the 539-million-year span, and the five major extinction events are linked to these transitions. The study is a preprint with limited coverage of the full 539-million-year timeline.

Key points

• Earth's climate over 539 million years remained within five recurring states rather than random shifts.
• Mass extinctions frequently occurred as the planet transitioned between these five climate states.

Context and limitations

Coverage is limited to the 539-million-year span; the full timeline remains unexamined.

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