FAO has supported member countries to carry out their national agricultural censuses since 1945, through the development and dissemination of international standards, concepts, definitions and methodologies as well as technical assistance. In 2015, FAO published Volume 1 of the World Programme for the Census of Agriculture 2020 (WCA 2020) “Programme, concepts and definitions”, the tenth decennial programme that provides guidelines for implementation of national agricultural censuses in the 2016-2025 decade. Volume 1 deals with the methodological and conceptual aspects of the census of agriculture. In addition to the use of international standards, the proper conduct of an agricultural census also depends on adequate planning, implementation, use of resources and quality assurance throughout all stages of the census. In light of this, Volume 2 of WCA 2020 “Operational guidelines” has been designed to guide national census practitioners responsible for conducting the agricultural census. It deals with the practical steps involved in actually conducting an agricultural census in the field. Volume 2 is a revised and updated edition of “Conducting Agricultural Censuses and Surveys”, published by FAO in 1996. The revision is opportune not only in view of the recent publication of the new census programme and methodology but also in view of the substantial changes witnessed in the census technological environment over the last two decades. The availability of digital, mobile and more affordable tools for data capture, geo-positioning, remote sensing imaging, digital archiving and online dissemination have provided new cost-effective alternatives to traditional ways of conducting the agricultural census.

This publication is a methodological review of the agricultural censuses conducted within the framework of the Programme for World Census of Agriculture 2000. It covers methodological aspects like enumeration methods and techniques, census frames, geographical and holding type coverage, census scope, date processing and tabulation, data quality and dissemination, integration of agricultural censuses with other censuses and surveys.

Air Emissions from Animal Feeding Operations: Current Knowledge, Future Needs discusses the need for the U.S. Environmental Protection Agency to implement a new method for estimating the amount of ammonia, nitrous oxide, methane, and other pollutants emitted from livestock and poultry farms, and for determining how these emissions are dispersed in the atmosphere. The committee calls for the EPA and the U.S. Department of Agriculture to establish a joint council to coordinate and oversee short - and long-term research to estimate emissions from animal feeding operations accurately and to develop mitigation strategies. Their recommendation was for the joint council to focus its efforts first on those pollutants that pose the greatest risk to the environment and public health.

This comprehensive overview of local food systems explores alternative definitions of local food, estimates market size and reach, describes the characteristics of local consumers and producers, and examines early indications of the economic and health impacts of local food systems. Defining ¿local¿ based on marketing arrangements, such as farmers selling directly to consumers at regional farmers¿ markets or to schools, is well recognized. Statistics suggest that local food markets account for a small, but growing, share of U.S. agricultural production. For smaller farms, direct marketing to consumers accounts for a higher percentage of their sales than for larger farms. Charts and tables.