“Cities themselves represent microcosms of the kinds of changes that are happening globally, making them informative test cases for understanding socioecological system dynamics and responses to change,” argue the authors of “Global Change and the Ecology of Cities,” published in today’s issue of Science magazine. The article focuses on changes in land use and cover, biogeochemical cycles, climate, hydrosystems, and biodiversity.

In an op-ed in today’s Washington Post, Kenyan environmentalist and Nobel Peace Prize laureate Wangari Maathai argues that the country’s post-election violence is partially the result of “the inequitable distribution of natural resources in Kenya, especially land.” Maathai has written extensively on the links between peace and natural resource management.

A joint policy brief by the Center for Strategic and International Studies and the World Resources Institute lays out the challenges associated with simultaneously increasing energy security and reducing carbon emissions, and proposes principles to guide these transitions.

Austria has not abided by its promise to crack down on a leather factory that Hungary contends is polluting the transboundary Raba River, said Hungary’s minister of environment, who proposed bilateral talks to resolve the issue.

This mid-term report evaluates progress made by the USAID-funded Okavango Integrated River Basin Management Project, which seeks to strengthen regional water management institutions and preserve the basin’s biodiversity.

“HIV and AIDS affect all people in a community by driving faster rates of resource extraction and use, increasing gender inequality, lowering the general health of the labor force, and impeding an individual’s ability to maintain a viable livelihood,” argue the authors of “Guidelines for Mitigating the Impacts of HIV/AIDS on Coastal Biodiversity and Natural Resource Management,” which suggests ways to combat these challenges.

Next year, for the first time in history, more than half of the world’s population will live in cities. This urban growth is inevitable, says a new United Nations Population Fund (UNFPA) report. Although cities are sometimes thought of as synonymous with poverty and large ecological footprints, the report, entitled State of World Population 2007: Unleashing the Potential of Urban Growth, describes the unprecedented urbanization as an opportunity. Lead author George Martine discusses the misconceptions surrounding urbanization and the ways in which policymakers can maximize the benefits of urban growth.

For the past three years, the Parisian NGO Committee for International Cooperation in National Research in Demography (CICRED) has funded programs around the world on the connections among population, environment, and development. Last week, representatives from these research programs—the overwhelming majority of whom are natives of the countries where the work was done—presented the findings of their studies at an international colloquium at UNESCO’s headquarters in Paris.