Tracking carbon footprints to the breakfast table

It matters — to the earth — what you have for breakfast.  You have probably never thought about the carbon footprint of your morning glass of orange juice.  But there is an emission cost to OJ, and, in a growing trend, Pepsico is trying to find out how big it is, and how to shrink it.  This slide show from the New York Times pictures the process of producing orange juice and getting it to your breakfast table, along with the efforts Pepsico is taking to reduce OJ’s carbon footprint.  Unfortunately, the presentation doesn’t suggest how many emissions could be saved by buying (or growing) oranges and squeezing your own juice.