Policy comparison: Which climate measures are most effective

An analysis of more than 1,700 climate policy measures shows that a coordinated mix of instruments is more effective at curbing global warming than isolated laws, with Sweden and Norway setting the pace.

05. February 2026
Congestion charge to increase and apply to electric vehicles, London, UK - 13 Nov 2025 A congestion charge sign on a street in central London as Transport For London announces that the congestion charge is set to rise by 20 percent to18 pounds and will now also apply to electric vehicles, which were previously exempt, at a discounted rate.
Effective policy tool: the congestion charge in London. (IMAGO / SOPA Images)

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Last updated: 05. February 2026