In the bid to tackle global warming, achieving net-zero carbon dioxide emissions would be good. Net-zero greenhouse gas emissions would be even better.

A Biden victory could pave the way for a big US climate package to match the European Green Deal. However, the checks and balances of the US political system may still throw up obstacles.

The EU’s coronavirus recovery package is much greener than that of China or the US. Brussels hopes that its partner-competitors follow its lead next year.

The German chancellor has signaled that climate protection is high on her EU presidency agenda. She is well positioned to advance her goals.