cows.

I was shocked when I got the report, because it said our No. 1 impact is milk production. Not burning fossil fuels for transportation or packaging, but milk production. We were floored.

Nancy Hirshberg, Stonyfield’s vice president for natural resources, commenting in this morning's New York Times on a report commissioned by her company in 1999 to assess their corporate impact on climate change.

The impact of the dairy industry on climate change results from the methane produced by cow belches.

Stonyfield and Danone (which owns a controlling interest in Stonyfield) have found that by restoring the cows to a diet that more closely mimics the sweet grasses they consume in the Spring, they're able to reduce their methane production to 18% among U.S. organic farms. In France, Danone has seen a 30% reduction when the diet was introduced across the larger commercial enterprise.