苗炜的博客

前几天开会，沃尔沃集团说，他们在北京车展上会推出一个碳中和的大卡车 

 As a source of global warming, the food we eat—and how we eat it—is no more significant than the way we make clothes or travel or heat our homes and offices. It certainly doesn’t compare to the impact made by tens of thousands of factories scattered throughout the world. Yet food carries enormous symbolic power, so the concept of “food miles”—the distance a product travels from the farm to your home—is often used as a kind of shorthand to talk about climate change in general

  Last year, a study of the carbon cost of the global wine trade found that it is actually more “green” for New Yorkers to drink wine from Bordeaux, which is shipped by sea, than wine from California, sent by truck.

You can feel very good about the organic potatoes you buy from a farm near your home, but half the emissions—and half the footprint—from those potatoes could come from the energy you use to cook them. If you leave the lid off, boil them at a high heat, and then mash your potatoes, from a carbon standpoint you might as well drive to McDonald’s and spend your money buying an order of French fries.