Hidden Climate Feedback Loops Could Boost Warming by a Third This Century

September 10, 2026

New research reveals that warming-induced emissions from natural sources could amplify global warming this century by an additional 20% to 30%, adding up to 0.4°C of extra heat.

These feedback loops, largely unaccounted for in current climate models and policies, include increased methane release from thawing permafrost and CO2 emissions from stressed ecosystems.

The findings highlight the urgent need for more stringent emission cuts to mitigate these hidden risks and prevent further destabilization of Earth's climate system.

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Unaccounted climate feedback loops may amplify warming by 20–30% this century, but cutting emissions will reduce risks

New research shows that warming-induced emissions—greenhouse gas emissions from natural sources driven by rising temperatures—could amplify global warming by approximately 20%–30% and add an estimated 0.2°C–0.4°C of warming this century on top of anthropogenic warming under different scenarios. These major additional drivers of warming are largely unaccounted for in current climate projections and policies.

phys.org