What we learned this week

It’s great to read about America’s first hydrogen powered train, profiled in the Guardian and hopefully the start of a trend.

Lots of inspiring people to read about in the Grist 50 for this year, “50 people across the U.S. who are tackling some of the most pressing problems of today in innovative and exciting ways.”

Meanwhile in the UK, steps were finally put in place this week to end the 700 year practice of hereditary peers and stand down the last 92 of the landed gentry that still have...