In several countries, court rulings have forced governments to make stronger cuts to emissions. But New Zealand courts have so far stayed clear of imposing legal steps, calling for regulation instead.
Reducing methane emissions could slow global warming quickly and buy time for the world to wean itself off fossil fuels. But it must not distract from the challenge to cut carbon dioxide emissions.
At COP26 in Glasgow everyone was committed to saving the planet, but there were highly divergent views about how to do it.
Of the big pledges so far at the UN climate conference, cutting methane could have the most immediate impact.
A simplistic ‘all livestock are bad’ narrative is promoted by campaigners, celebrities, philanthropists and policymakers alike. A much more sophisticated debate is needed.