[lorenzhs]

Replacing something that still works and isn’t all that old with a new, more energy-efficient product rarely yields a net reduction in emissions. That new thing need to be produced, and production is often a major component of lifecycle emissions.

[Robotbeat]

I understand the Jevons paradox. However, unlike hybrids, electric cars allow complete elimination of emissions. It's a totally different animal, and it avoids the Jevons paradox while also allowing near-term emissions reduction. It's at least 2.5x better. You're not going to drive 2.5x more.