My friend and colleague Colin Campbell, who has died aged 91, was an exploration geologist concerned with the energy constraints posed by “peak oil”.
I first met Colin in 1995 at a lecture on peak oil at Reading University, where he showed that the world would soon face maximum production of its conventional oil. An academic in the audience dismissed this, so colleagues and I talked to oil experts and to Petroconsultants SA (who held the world’s best oil data): they said they thought that Colin was right.
