Did you realize that yesterday was your last chance to submit comments on the EPA's 1990-2006 Greenhouse Gas Inventory Report to the public? You can thank EPA Administrator Stephen Johnson for the short notice. He only told Barbara Boxer and her Senate Environment and Public Works Committee about the public comment thing last week, so everyone has been out of the loop.

Knowing what emissions are coming from where is the important first step that needs to be taken before the government can propose how to cap and reduce emissions.

Here's some info from the report:

• From 1990-2006 U.S. GHG emissions grew by 14.1 percent, while the economy has grown by 59 percent.
• Emissions declined in 2006 by 1.5 percent (but this probably has more to do with the increasing price of energy, rather than everyone going out and buying Priuses and compact fluorescent light bulbs)
• More methane is produced as a result of cow farts than from rotting garbage in landfills
• Abandoned underground coal mines are a significant source of GHG emissions
• HFCs created to replaces ozone depleting substances trap as much as 11,700 times more heat than regular old CO2
• CFCs and SF6, emitted from semiconductor production, trap 6,500-23,000 times more heat than CO2, so you might want to hold on to your MacBook a little longer, k?

We could go on, but we're too busy trying to figure out whether the EPA will accept comments that are 12 hours late. Somehow we doubt it.