The size of the protected area is recognized as one of the key attributes for assessing the effectiveness of investing in protected areas. We evaluate the effectiveness of protected areas by examining economies of scale in size and the average cost of acquiring protected areas depending on the land acquisition contract types and motivations. We use recent land acquisitions (2000-2009) of the central and southern Appalachian forest ecosystems by The Nature Conservancy (TNC) as a case study.

This report presents results and conclusions from a Pilot exercise undertaken to assess the experience of
affected country Parties to the United Nations Convention to Combat Desertification (UNCCD) with
reporting on impact indicators under the Convention’s Performance Review and Assessment of the
Implementation System (PRAIS). The experiences and recommendations presented in this report should
be used to guide the 2012–2013 reporting and review process.

This paper analyzes the adoption behavior of smallholder farmers using comparable plot-level duration data for Kenya and The Philippines. We find that adoption behavior is strongly linked to the process of land ownership transfer. This relationship is found both for data from Kenya and The Philippines and is robust to the inclusion of observed and unobserved village, household, plot, and time factors.

The figures of public resources estimated to have been channeled into private pockets are so high one hopes, obviously against hope, that they would turn out to be typographical errors. The figures of public resources estimated to have been channeled into private pockets are so high one hopes, obviously against hope, that they would turn out to be typographical errors.

Neste estudo multidisciplinar aproveitou-se os trabalhos de manejo e conservação dos solos e da água em microbacias hidrográ ficas, que foram realizados no estado do Paraná , no ú ltimo quartel do sé culo XX, para avaliar se o preç o da terra é sensí vel à s melhorias ambientais. Avaliou-se, atravé s de mé todos economé tricos, o Programa Paraná Rural, em trê s faixas de prioridades na sua forma de aç ã o: alta, mé dia e baixa prioridade. A partir dessas diferenç as, na aplicaç ã o do Programa, esta pesquisa revelou existir relaç ã o positiva entre o mercado de terras e o meio ambiente.

Agenda 21 is a comprehensive plan of action to be taken globally, nationally and locally by organizations of the United Nations System, Governments, and Major Groups in every area in which human impacts on the environment.

Agenda 21, the Rio Declaration on Environment and Development, and the Statement of principles for the Sustainable Management of Forests were adopted by more than 178 Governments at the United Nations Conference on Environment and Development (UNCED) held in Rio de Janeiro, Brazil, 3 to 14 June 1992.