Two decades of climate policy: near-zero impact
—just 0.15% reduction
Study shows: just 4% of climate policies worked (63 of 1500 had substantial impact)
Total reduction 2000-20 in 41 countries (incl China, US, India etc) was .6-1.8Gt CO₂, total emissions were 778Gt CO₂e, or https://t.co/hslDuExFTp
— Bjorn Lomborg (@BjornLomborg)
Jan 14, 2026
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