New research suggests that declines in wild fish species may compromise nutrition in an already poor region. Substituting cultivated species may not help.

Una nueva investigación sugiere que una disminución de especies de peces silvestres puede comprometer la nutrición en una región que ya padece de inseguridad alimentaria. Es posible que la sustitución de especies cultivadas no ayude.

Should we certify aquaculture? A look at mounting challenges in the push for sustainable seafood.

On Sept. 17, 2011, the removal of two large hydroelectric dams on the Elwha River in Washington State, which have blocked migrating salmon from reaching their spawning grounds for almost 100 years, will begin. While this is the largest dam removal project in U.S. history, it is just one of several major dam removals planned for this year that exemplify the growing river restoration movement.

The 2008 Associated Press report that drugs had been found in the drinking water supplies of 41 million Americans was alarming. What is the state of pharmaceuticals in our water today?