Nature Climate Change, Published online: 22 December 2025; doi:10.1038/s41558-025-02514-8Both green industrial policy (‘carrots’) and carbon pricing (‘sticks’) are seen as important instruments for decarbonization, but the sequencing strategy matters. Researchers now demonstrate that carrots alone — without sticks — are unlikely to reach long-term net-zero targets in the USA.
Observations from the Little Bunker
Last updated: December 22, 2025 02:11 PM
Atmospheric CO₂
427.2 ppm
+17.9
ppm/year
Atmospheric CH₄
1930.95 ppb
+-3.5
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year