What we learned this week

Yesterday China’s long awaited emissions trading scheme launched. It’s the biggest carbon trading scheme in the world, incorporating 12% of global emissions, and its success or failure has truly global implications. In terms of significance, if not coverage, it’s one of the climate stories of the year. FAQ from Carbon Brief here.

I wrote last year about the possibilities of using old coal mines as a source of renewable heat for British homes, so it’s good to see the topic investigated by BBC ...