Global environmental impacts of agricultural expansion: The need for sustainable and efficient practices

The recent intensification of agriculture, and the prospects of future intensification, will have major detrimental impacts on the nonagricultural terrestrial and aquatic ecosystems of the world. The doubling of agricultural food production during the past 35 years was associated with a 6.87-fold increase in nitrogen fertilization, a 3.48-fold increase in phosphorus fertilization, a 1.68-fold increase in the amount of irrigated cropland, and a 1.1-fold increase in land in cultivation. Based on a simple linear extension of past trends, the anticipated next doubling of global food production would be associated with approximately 3-fold increases in nitrogen and phosphorus fertilization rates, a doubling of the irrigated land area, and an 18% increase in cropland. These projected changes would have dramatic impacts on the diversity, composition, and functioning of the remaining natural ecosystems of the world, and on their ability to provide society with a variety of essential ecosystem services. The largest impacts would be on freshwater and marine ecosystems, which would be greatly eutrophied by high rates of nitrogen and phosphorus release from agricultural fields. Aquatic nutrient eutrophication can lead to loss of biodiversity, outbreaks of nuisance species, shifts in the structure of food chains, and impairment of fisheries. Because of aerial redistribution of various forms of nitrogen, agricultural intensification also would eutrophy many natural terrestrial ecosystems and contribute to atmospheric accumulation of greenhouse gases. These detrimental environmental impacts of agriculture can be minimized only if there is much more efficient use and recycling of nitrogen and phosphorus in agroecosystems.

Transactions of the Department of Agriculture of the State of Illinois with reports from county and district agricultural organizations for the year ...

39

Centennial International Exhibition Grounds, Philadelphia, Pennsylvania, 1876 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Pictorial map of the International Exhibition Grounds, presented by the Philadelphia, Wilmington and Baltimore Railroad. It was published by Van Ingen & Snyder & Gillett in 1876. Scale not given. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Pennsylvania South State Plane Coordinate System NAD83 (in Feet) (Fipszone 3702). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This image pictorially shows the grounds of the Philadelphia Centennial Exhibition, 1876. It includes features such as roads, railroads, drainage, buildings with uses, and more. Includes inset engraving: Birds-eye Centennial International Exhibition from Sawyer's Observatory. Copyright 1875 by Theo. Leonhardt & Son and lists of United States Centennial Commissions officers. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Sandcastles of hope? Civil society organizations and the working conditions of migrant farmworkers in North America

This research explores whether civil society organizations (CSOs) can contribute to more effectively regulating the working conditions of temporary migrant farmworkers in North America. This dissertation unfolds in five parts. The first part of the dissertation sets out the background context. The context includes the political economy of agriculture and temporary migrant labour more broadly. It also includes the political economy of the legal regulations that govern immigration and work relations. The second part of the research builds an analytical model for studying the operation of CSOs active in working with the migrant farmworker population. The purpose of the analytical framework is to make sense of real-world examples by providing categories for analysis and a means to get at the channels of influence that CSOs utilize to achieve their aims. To this end, the model incorporates the insights from three significant bodies of literature—regulatory studies, labour studies, and economic sociology. The third part of the dissertation suggests some key strategic issues that CSOs should consider when intervening to assist migrant farmworkers, and also proposes a series of hypotheses about how CSOs can participate in the regulatory process. The fourth part probes and extends these hypotheses by empirically investigating the operation of three CSOs that are currently active in assisting migrant farm workers in North America: the Agricultural Workers Alliance (Canada), Global Workers’ Justice Alliance (USA), and the Coalition of Immokalee Workers (USA). The fifth and final part draws together lessons from the empirical work and concluded that CSOs can fill gaps left by the waning power of actors, such as trade unions and labour inspectorates, as well as act in ways that these traditional actors can not.

The Political Economy of the 2014-2020 Common Agricultural Policy: An Imperfect Storm. CEPS Paperback, 17 August 2015

After five years of debates, consultations and negotiations, the European institutions reached an agreement in 2013 on the Common Agricultural Policy (CAP) for the 2014-2020 period. The outcome has major implications for the EU’s budget and farmers’ incomes but also for Europe’s environment, its contribution to global climate change and to food security in the EU and in the world. It was decided to spend more than €400 billion during the rest of the decade on the CAP.The official claims are that the new CAP will take better account of society's expectations and lead to far-reaching changes by making subsidies fairer and ‘greener’ and making the CAP more efficient. It is also asserted that the CAP will play a key part in achieving the overall objective of promoting smart, sustainable and inclusive growth. However, there is significant scepticism about these claims and disappointment with the outcome of the decision-making, the first in which the European Parliament was involved under the co-decision procedure. In contrast to earlier reforms where more substantive changes were made to the CAP, the factors that induced the policy discussions in 2008-13 and those that influenced the decision-making did not reinforce each other. On the contrary, they sometimes counteracted one another, yielding an ‘imperfect storm’ as it were, resulting in more status quo and fewer changes. This book discusses the outcome of the decision-making and the factors that influenced the policy choices and decisions. It brings together contributions from leading academics from various disciplines and policy-makers, and key participants in the process from the European Commission and the European Parliament.

Soil biology as related to land use practices : proceedings of the VII International Soil Zoology Colloquium of the International Society of Soil Science (ISSS) /

Item 473-B-1

Transactions of the American Fisheries Society.

Nuclear science abstracts

Transactions of the American Microscopical Society.

Biological & agricultural index

Animal care and use in behavioral research : regulations, issues, and applications : based on an invited paper session presented at the l988 meeting of the Animal Behavior Society /

"September 1989."

Development of the agricultural tractor in the United States.

Pt. 2 published without series title or numbering by the American Society of Agricultural Engineers, 1958.

Birds of central Pennsylvania /

Caption title.

Birds of the State College Region, Pennsylvania /

Cover title.

Circular - Pennsylvania State University, College of Agriculture, Extension Service.

Mode of access: Internet.

Early Quaker education in Pennsylvania,

Published also as thesis (PH. D.) Columbia university, 1918.

The labourer's friend : a selection from the publications of the Labourers' friend society, showing the utility and national advantage of allotting land for cottage husbandry.

Tables.