Environmental change - problems and options. The long perspective. The evolution of the environmental engineer. The environmental issue and medicine. Environmental problems in food production, processing and preservation. Energy and environment: confrontation or compromise? Meteorology. The world's wetlands under threat - developing wise use and international stewardship. Understanding the forest ecosystem - a prerequisite for survival. The conservation of biological diversity: using birds to set priorities. Microbial ecology and population biology. Insects, man and environment - who will survive? Man as selector - a Darwininan boomerang striking through natural selection. Philosophy and the environmental crisis. Plural rationalities the rudiments of a practical science of the inchoate. The formation of Green parties, environmentalism, state response and political entrepreneurship. Urban green oases and recreational areas.