What we learned this week

A striking climate change conundrum has emerged in Namibia, where drought threatens the survival of 200 elephants. The government’s solution? Sell the elephants.

My wife, who is a BBC radio journalist, recorded a special programme on ‘earth heroes’ in our local area. It features activists, inventors, entrepreneurs and more, and you can listen back here.

People have been talking about geothermal power from Cornwall for decades and the potential has never been properly tapped, so it’s grea...