I think he, like the rest of us can feel the inherant contradictions between what we need to be doing and what we are doing. If you care about the state of the world at all then you must feel it. The changes we make personally don't add up to the systemic change that is needed and the fact is than even those of use who are not multi-millionaire racing drivers don't want to or feel we can't afford to give up the things we would need to to make a difference. The real change needs to come from governments but it won't because voters would crucify them because people are basically too selfish to accept the change. They want someone else to take responsibility but don't want to make personal sacrifices. So while Hamilton is being a bit pious (when is he not?) I don't think it's hypocritical to mourn the environmental collapse that is going on and still feel that changes we make as individuals don't amount to much. Or it probably is hypocritical but it's also human nature.