Yemen, the Lakota and urban gardening – this week’s favourite Ted talks

Watching Ted talks is turning into a mild obsession as I find myself googling “Ted talk” with any third word that comes to mind, like “science”, “gardening” or “war”.  The more creative I think I’m getting the more fascinating presentations I find.  Try the Ted talk formula with “architecture”, “crochet” and “Pine ridge reserve” and…