Horizon - Two Weeks to Save the Earth

Seizoen: 1991 - Aflevering: 6 / 1108 - Eerst uitgezonden: 10 februari 1991 - Episode ID: 439309

Looks at the work of Earthwatch, and some of the many people who spend their holidays contributing to learning about the planet by helping on prehistoric digs, recording fish noises, tracking rodents, measuring grass an leaves and counting insects in places all over the world, often suffering much discomfort and boredom.