What we learned this week

We kept four tortoises in Madagascar, along with many other pets of various kinds, so I have a soft spot for them. Here’s an unusual story about conserving them in the Mojave Desert, using 3-D printed booby-trapped decoy tortoises.

Can’t make it myself, but I like the title of the Ad-Free Cities conference happening today in London: Beyond Consumerism – reducing the brain pollution from advertising.

Is it better to be vegan or give up flying? I mean it’s not an either/or, but it’s a good ...