A Contract with the Earth 15

In my latest reading of A Contract with the Earth, Newt Gingrich and Terry Maple talk about such issues as people who have planted trees that have removed air pollution, the role of cleaner cars in reducing pollution, Shell Oil's acknowledgement of human-made global warming and support for alternative energy, and George W. Bush's support as Governor of Texas for renewable energy. This is a very optimistic book, which is why I enjoy reading it. I'd like to think that there are a lot of people out there who want to do the right thing. But there is an opposite tendency in human nature, as well.