Consensus is growing that we must reduce our dependence on fossil fuels. Proponents of nuclear energy say nuclear is the best alternative. But nuclear energy is neither clean nor green. Each step in the nuclear chain poses hazards to the environment and human health.
See http://www.davidsuzuki.org/blogs/docs-talk/2011/01/a-few-good-reasons-why-we-should-abandon-nuclear-energy-for-good/.