Mapping anoxic zones – pt 2

Global International Waters Assessment is a systematic assessment of the environmental conditions and problems in large transboundary waters, comprising marine, coastal and freshwater areas, and surface waters as well as ground waters. Involving over 1,500 expert it has assessed 66 of the world’s major river basins and recently published a synthesis report. These publications are […]

Evaluation of ecosystem services provided by multifunctional agriculture in the USA

George Boody and colleagues used a scenario-development exercise to discover that some types of changes in agricultural management can lead to economic benefits as well as improvements in the delivery of multiple ecosystem services.(Boody et al. 2005. Multifunctional agrcitulture in the United States. BioScience 55: 27 – 38.) The team of 17 members (including farmers, […]

Anoxic zones – mapping ecosystem tradeoffs (a start)

Current industrial agricultural practices, particularly the overuse of fertilizer and its sloppy management, frequently create a tradeoff between agricultural production and coastal eutrophication. That is increases in agricultural yields have produced low oxygen zones around the world. The UNEP Global Environmental Outlook 2003 maps the location of coastal anoxic zones world wide (somewhat confusingly the […]

New Orleans and the ecology of the Mississippi River

Richard Sparks writes about the ecological/geological context in which New Orleans exists, how people have changed them, and what rebuilders should consider. His article is Rethinking, Then Rebuilding New Orleans, in the Winter 2006 Issues in Science and Technology. His article focusses on the natural forces that have shaped the Mississippi and how humans have […]