As calls for bolstering environmental services on croplands have grown more insistent during the past two decades, the search for ways to foster sustainable, reduced input agriculture has become more urgent. In this context authors re-examine by means of a meta-analysis the argument, first proposed by Robert McC. Netting, that small scale, mixed crop – livestock farming, a common livelihood among poor rural peoples, encourages environmentally sustainable agricultural practices.

This evaluation seeks to understand the impact which certain measures of the CAP have had on reducing GHG emissions, agriculture’s vulnerability to climate change and its ability to provide adaptation and mitigation services to society. Most of the CAP measures analysed do not have climate action as their intended purpose but may have it as a secondary purpose. Some, such as those which sustain certain forms of agricultural production responsible for emissions, exist for economic, social and sometimes other environmental reasons.