Britain has become rather different from the way it was when I left 20 years ago. It was decided recently, that Boris Johnson, the British Prime Minister, would have to go because some considered him to have had a tenuous relationship with the truth -- he could no longer be taken seriously. A handful of people (members of the Conservative Party and less than 1% of the British population) were given the pleasure of electing a new leader. In the end this came down to a choice between two individuals, and neither appeared much interested in the current environmental problems.…