In California's Napa Valley, the Napa Vintners have volunteered to implement sustainable business practices with ambitious goals to protect ecosystems and the land through Napa Green Land and Winery Certifications.

outdoor activewear and gear company, told Wine Spectator in 2008, "I've been at this for 30 years and this is the best, most well-thought-out program I've ever seen."

The Napa green program has to date 41 wineries, so savor your next sip with the greenest in the valley, those that have both certifications:

Araujo Estate Wines
Beringer Vineyards
Cakebread Cellars
Cuvaison Estate Wines
Etude
Hess Collection Winery
Merryvale Vineyards
Opus One
Schramsberg Vineyards
Sterling Vineyards
Trefethen Family Vineyards

More information on Napa Green program and list of all the wineries: http://www.napavintners.com/wineries/napa_green_wineries.asp