Greenhouse Blueberries, or Blue Berries in a Green House?

Want to know which organic foods are worth the extra shekels? Then you need to check out this iVillage slideshow, where you will find the following counsel on the advisability of buying blue-ribbon berries:

I only buy berries when they’re in season and sold at the farmer's market or at my local retailer. And I don’t do it to cut green house gases! I buy them in season, because they are much cheaper and so much better tasting.

Sound advice. Except that the difference between a "green house" and a "greenhouse" is worth bearing in mind, as we are reminded in this classic clip--which, coincidentally, is about berries: