Unit 1 - Ecology

The water cycle    220

The food chain    222

River management    226

Unit 2 - Planet Earth is in the danger zone

Health diseases due to pollution    230

Electromagnetic pollution    230

Documentary about climate change    230

The air    232

What pollutes every breath we take    232

Acid rain    232

Water    234

Heavy metals in the environment    236

Soil microbiology    236

Unit 3 - Disaster is avoidable

Purifying water    240

Air sampling    240

Dogger Bank Wind Farm project    242

Biological fuel generation    246

Environmental policies    248

The different colours of economies    248