Ecosystems are such intricate webs of connections that few studies have been able to explore exactly what happens when a species dies out.

Fisheries management decisions are often based on population models. However, those models need quality data to be effective. It's that caliber and volume of data that is lacking in fisheries science, according to Milo Adkison, an associate professor in the School of Fisheries and Ocean Sciences at the University of Alaska Fairbanks.

Poorly managed marine fisheries are in trouble around the world, researchers say, while ecosystem-based management is a powerful idea that in theory could help ensure sustainable catches - but too often there's a gap in translating broad concepts into specific action in the oceans that successfully meets these larger goals.

Industrial agriculture faces painful challenges: the end of cheap energy, depleted water resources, impaired ecosystem services, and unstable climates. Scientists searching for alternatives to the highly specialized, energy intensive industrial system might profitably look to the biological synergies inherent in multi-species systems, according to an article in the March-April 2007 issue of Agronomy Journal.

In the simmering debate over what to do about global warming, alternative energy sources have center stage.

Appalachian hardwood forests may be getting a respite from acid rain but data from a long-term ecological study of stream chemistry suggests that the drop in acid rain may be changing biological activity in the ecosystem and hiking dissolved carbon dioxide in forest streams.

Global warming will result in Arctic Ice completely melted in 2040: this is the data American Geophysical Union Fall Meeting provides.

If global warming goes on as rapidly as it goes right now, the white spot of the Earth will almost disappear around 2040, because ice shrinks from about 6 million square km to 2 million square km each September.

Bioscience article calls for 'global conservation effort' to preserve critical coastal habitat