In this edition of CleanTech Talk, Paul Martin and I discuss Michael Liebreich’s hydrogen ladder. Paul is a working chemical process engineer, and has spent his career building prototypes of biofuel, hydrogen, and chemical processing plants as part of scaling them to full, modularized production systems for clients. Paul’s piece in CleanTechnica on why hydrogen
In this article TWTR Jack Dorsey, CEO of Twitter and co-founder & CEO of Square, speaks during the crypto-currency conference Bitcoin 2021 Convention at the Mana Convention Center in Miami, Florida, on June 4, 2021. Marco Bello | AFP | Getty Images Twitter on Wednesday launched Super Follows, a feature that allows select users to
The Queen met every serving US president except one during her remarkable reign, including JFK, Ronald Reagan and Barack Obama. Harry Truman was first in 1951 when the Queen was still a princess – and seven years after she took the throne, Dwight D Eisenhower visited the UK. Princess Anne and Prince Charles were pictured
It started with a pledge on the steps of Downing Street to tackle “burning injustices”, but Brexit sapped her energy and her time in office ended with an emotional goodbye. As Theresa May announces she is stepping down as an MP at the next election, we take a look back at the highs and lows