Based on a paper in Nature Communications and a report in The Guardian 19 January 2026
Scientists report that global floating seaweed blooms are expanding in the oceans, with possible serious consequences. In the past two decades, both microscopic algae, such as phytoplankton, and seaweeds or macroalgae, have increased in certain coastal and open ocean waters.
As environmental destruction continues and the climate change and biodiversity crises accelerate, the concept of tipping points is being widely discussed. A tipping point is where a change in a system has gone so far that the system is destabilised, and positive feedbacks accelerate the decline towards total collapse, so that return to a desirable state becomes impossible in the reasonable future.
Scientists Warning 2025 State of the Climate Report 29 October 2025
The 2025 state of the climate report: a planet on the brink
The Scientists Warning team has published their 2025 State of the Climate report in Bioscience on 29 October 2025. William J. Ripple, Christopher Wolf, Michael E. Mann, Johan Rockström and their co-authors are alarming in their observations and conclusions, of which excerpts follow.
