Natural Resource Management Set Series

Unwelcome Harvest

by Gordon R. Conway and Jules N. Pretty

Published 1 October 2009

Agriculture Pollutes: pesticides can destroy wildlife and some are toxic to humans; some fungicides and herbicides cause cancer. Nitrates result in the contamination of drinking water and produce the risk of the blue-baby syndrome in infants and of stomach cancer in adults. Agriculture produces methane, ammonia, nitrous oxide and the products of burning off, all of which add to the world's problems of acid rain, depletion of the ozone layer and global warming.

This book, which focuses on the UK, the USA and Third World countries, is the first comprehensive review of agriculture and pollution: it examines the facts and assesses the relative dangers of each pollution problem. It also considers the effects of pollution on agriculture itself crop yields are depressed and livestock damaged by various forms of pollution from all sources.

The authors offer solutions to these apparently overwhelming problems, and describe existing technology which would allow us to deal with them.

Originally published in 1991

After the Green Revolution

by Gordon R. Conway and Edward B. Barbier

Published 30 April 1990

'The Green Revolution' of the 60's and 70's produced immense gains in food cereal production in the Third World. But there are huge problems in the 'post-revolutionary' era: farmers with small or marginal holdings have benefited less than wealthier farmers; intensive mono-cropping has made production more susceptible to environmental stresses and shocks. Now there is evidence of diminishing returns from intensive and intensively chemical agricultural production. What is needed is a new approach, equally revolutionary, but different in its ideas and style. The authors set out what they mean by 'sustainable' agriculture in the new era and look at the effects of international economic restraints and of national policies on the kind of development they see as necessary. They chart a path for sustainable livelihoods for Third World farmers enmeshed by forces outside their control. They describe methods of evaluating and resolving the tough trade-offs all levels of intervention, from international trade down to the individual farm. This book cannot provide all the answers, but it does indicate what international conditions we need to be aware of, what national policies we need to advocate and what approaches at the local level we need to adopt to ensure the goal of agricultural sustainability. Originally published in 1990