The Microsoft co-founder grew visibly irritated when confronted on the topic during a lengthy interview last week with BBC journalist Amol Rajan.“What do you say to the charge that if you are a climate change campaigner, but you also travel around the world in a private jet, you’re a hypocrite?” Rajan asked.“By the gold standard of funding Climeworks to do direct air capture that far exceeds my family’s carbon footprint, and I spend billions of dollars on climate innovation. So, you know, should I stay at home and not come to Kenya and learn about farming and malaria?” an annoyed Gates responded.“Anyway, I’m comfortable with the idea that not only am I not part of the problem by paying for the offsets, but also through the billions that my breakthrough energy group is spending, that I’m part of the solution,” Gates added.Gates owns at least four private planes, according to a report from the website Private Jet Charter.