National Geographic's Strange Days on Planet Earth

This companion web site (requires flash) to a PBS/National Geographic four-part documentary talks about global change in many forms including:

1. Invaders: Traces the journey of non-native species and the resulting fall out
2. One degree factor: Discusses how a few degrees of climate change effect species
3. Predators: Explores the crucial role top predators play in an ecosystem
4. Troubled Waters: Talks about the role of toxins in the world's water systems