global warming
James Hansen, a prominent climate scientist at Columbia University, has predicted that 2026 will become the hottest year on record, surpassing 2024 due to accelerating global warming and an impending super El Niño. He argues that current sea surface temperatures support this forecast despite ongoing La Niña cooling. Other experts urge caution amid forecast uncertainties.
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Building on recent studies like Stefan Rahmstorf et al.'s analysis showing a doubling of Earth's warming rate to ~0.36°C per decade since 2014, scientists disagree on whether reductions in aerosol pollution or natural fluctuations are driving the speedup. Nearly all agree warming has accelerated, but views differ on causes, rate, and future trajectory—with implications for climate sensitivity and adaptation.