Articles by Erik Hoffner

Atlantic Salmon restoration efforts face grim realities

Stocks of wild salmon in the North Pacific are in trouble. That's news.

What isn't news is that the spring has passed us by in Massachusetts again without returning more than a handful of wild Atlantic Salmon. The river closest to me, the Connecticut, saw just 132 salmon return, nearly all of which were captured at either of two dams and whisked away by biologists working for the Connecticut River Atlantic Salmon Restoration program. The fish are bred at hatcheries so next spring the young can be released back into the river, hopefully to grow, go to sea, and return (others were tagged and released upstream of the dams to breed naturally this fall). But is it worth the effort?

Farm animals consume 17 percent of wild-caught fish

Here's a guest post from Jennifer Jacquet of the Sea Around Us Project and the UBC Fisheries Centre in Vancouver, B.C.

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It is one thing to grind up wild fish to feed to farmed fish, but it is quite another to grind up these perfectly edible fish to feed factory-farmed pigs and poultry. After all, when is the last time you saw a chicken catch a fish?

In the not-so-distant past, pigs and chickens ate grass, some grains, and food scraps. Today, in the throes of a perverse industrial food system that favors cheap protein and quick growth (with often astonishing results such as Mad Cow disease), we now feed farm animals lots of small, tasty fish.

Lots.

The costs of unsustainable agriculture

Here's a guest post from Rodale Institute CEO Tim LaSalle.

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Tom Philpott is right to highlight the tremendous ecological debt we've built up by depending on nitrogen fertilizer to run our crop production system. Depending on mined and fossil-fuel produced nitrogen for our food is no more sustainable than depending on peaking oil and mountain-top removed coal for our energy.

There's no more "cheap" food and fuel, because, really, there never was. The huge irony -- currently obscured by the psychological jolt of widespread shortages of food and fuel -- is that we were just learning of how not cheap industrial food has been:

Development in waste-heat-to-electricity technology

Here's a 200 year old idea with merit: A Stirling engine, modified to capture the waste heat of industrial processes to make electricity. Gar noted Stirling Energy Systems' efforts in this vein to make electricity from solar thermal collectors using a Stirling engine a year ago, but instead of the sun, a startup in my neighborhood, ReGen, is developing a Stirling that will specialize in using the low to moderate heat generated by landfill gas systems, paper mills, steel mills, chemical and petroleum refining facilities, glass ovens, cement plants, and similar locations: