Any speech by NASA’s James Hansen deserves attention. His remarks “On Acceptance of WWF Duke of Edinburgh Conservation Medal” are no exception.
Two features are especially noteworthy. First, Hansen includes his slides, so you can understand what he’s saying very clearly. Second, he speaks with increasing poignancy about what we are doing to this planet:
It is an uncomfortable inconvenient scientific truth: we cannot pour into the atmosphere all of the fossil fuels that were buried in the ground over millions of years without creating a different planet, without destroying creation, without being miserable failures in our stewardship of the planet we were blessed with.