Unfortunately, for achieving the warmest year since the global instrumental temperature measurement exists.
James Hansen: Climate Pioneer and the Case for Higher Climate Sensitivity
James Hansen, former director of NASA’s Goddard Institute for Space Studies (1981–2013), was among the first to alert the world to human-caused global warming, famously testifying to the U.S. Congress in 1988. His groundbreaking work on climate modeling, Earth’s energy balance, and paleoclimate data has shaped our understanding of how greenhouse gases drive temperature rise.
Hansen argues that climate sensitivity—the long-term global temperature response to doubled CO₂—is likely 4–5°C, not the IPCC’s mainstream estimate of ~3°C. He supports this with paleoclimate evidence (e.g., 6–7°C cooling during the Last Glacial Maximum), satellite albedo data, and Earth’s energy imbalance. His recent research (2023–2026) warns that reduced aerosol cooling and accelerating ocean warming, potentially amplified by a “Super El Niño” in 2026/27, reveal the urgency of addressing these underestimations.
Here are his and his team’s latest findings:
https://mailchi.mp/caa/2026-on-track-for-warmest-year?e=737fb9744c
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