How this page evolved

Every published version is kept. Each entry shows what changed and why. Earlier versions can be restored by moderators, but only if the material they rely on is still available.

1. Revision 4Oct 4, 2026, 8:36 AMLiveAI-organised, reviewed

   Added newer evidence on marginal vs average grid emission factors in China, cradle-to-grave optimisation scenarios for China/Europe/USA, projected 2035 life-cycle intensity, and a dissenting source claiming higher EV emissions in China; kept the core finding and added uncertainty and guidance reflecting the wider range of estimates.

   • · The main finding was rewritten.
   • · Updated “What the evidence shows”.
   • · Added section “Where the picture is contested”.
   • · 4 new sources cited.
   • · The note on uncertainty changed.
   • · The key takeaways were revised.
   • · 3 new pieces of guidance for specific situations.
   • · 1 new open question.
2. Revision 3Sep 30, 2026, 6:49 PMAI-organised, reviewed

   Initial Starting Map created for the question of whether electric cars emit less than petrol cars over their whole life cycle. It draws on two modelling studies covering many world regions and reports their quantified findings, while flagging that results depend heavily on the electricity grid and that no reader contributions are yet available.

   • · First published version.