My carbon footprint was minimal. I took a warm shower and drove to work. Oh, and I breathed a little, too.

What did the president do? Mark Knoller of CBS News enlightens us:

President Obama took two flights on Air Force One and four on Marine One.

The press office at Andrews AFB wouldn?t give me the fuel consumption numbers for the 747 that serves as Air Force One without the approval of the White House Press Office, which as I write this has yet to be given.

But Boeing says its 747 burns about 5 gallons of fuel per mile. It?s 895 miles from Washington to Des Moines, so a round trip brings the fuel consumption for the fixed-wing portion of the President?s trip to 8,950 gallons.

The trip also put President Obama on Marine One for round-trip flights between the White House and Andrews AFB and between Des Moines International Airport and Newton, Iowa, site of his Earth Day speech. It totaled about an hour of flight time. The VH-3D that serves as Marine One consumes about 1200 pounds of fuel per hour which comes out to about 166 gallons consumed flying the President today.

By my calculation, I could drive to and from work for over 17 1/2 years and use the same amount of fuel that our first “green” president did in one day — and on Earth Day, no less.