He believed in peak oil and global warming. Did you listen to the PO message as closely as you want us to listen to the CO2 message? I believe in PO and think he put that case well.
I also heard his views on AGW and took them on board. He didn't negate all I'd read before and like all businessmen he was prolly talking his book. But he did sound as if he believed, honestly, what he said. There are many people speaking on many topics who look to be reading their book. Big difference.