The Impact of Environmentalism: Food & Farming

Are we doing enough to reduce the environmental impact of food production? Is green thinking making a difference?
We are all aware of the importance of the environment - it's always in the news and it affects our behaviour and the decisions we make every day. But what actual impact has environmental thinking had on food and farming?
This thought-provoking series looks at the way changing ideas about the environment and sustainability have affected our landscape, conservation efforts, transportation, food and farming, and our towns and cities.