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1 revisions for "The End of the Worst Case: Why Climate Science's Most Extreme Warming Scenario Was Retired — and What It Means"

Anonymous4 days ago

In April 2026, the international scientific committee responsible for climate modeling scenarios officially declared that RCP8.5, SSP5-8.5, and SSP3-7.0 — the extreme warming projections that dominated two decades of climate research and policy — are "implausible." The decision, driven by observed renewable energy cost declines and emissions trends, has triggered both political celebration and scientific concern about whether replacement scenarios adequately capture tail risks from tipping-point feedbacks.