Final answer:
The author blames various factors for the environmental crisis and emphasizes the need for personal responsibility.
Step-by-step explanation:
The author attributes blame for the environmental crisis to several factors, including our own habits and expectations that place demands on planetary resources. The author points out that people have a tendency to blame others for their problems, such as capitalists, socialists, liberals, conservatives, environmentalists, illegal immigrants, other religions, and other powerful countries. However, the author emphasizes that we as humans must accept responsibility for the conditions we create.