What we learned this week

Given how many decades it has taken to negotiate, the UN’s new High Seas Treaty didn’t make much of a splash in the news. Perhaps we’re too aware of the gap between promises and action in global agreements at this point. Still, historic – this is a treaty that covers international waters for the first time, and the BBC have an explainer.

I’ve written with scepticism about vertical farming a couple of times (here and here), questioning whether they will ever make economic sense outside of grow...