State of the planet's wildlife
The Sixth Extinction: Scientists are warnig us that something is terribly wrong with our planet. Prior extinctions were due to cataclysmic events, but the next extinction may not come from natural changes in the climate or from outer space. Rather, it could be the result of human activities.
|Other Authors:||, , , , , ,|
[Washington, D.C.] :
|Series:||Journey to planet Earth.