Do you know how many kWh your home uses every day or the energy content of a gallon of gasoline? How do those amounts of energy relate to 2000 Calories you eat every day, and the amount of CO2 you emit? The world needs to reduce CO2 emissions by ~ 1000 gigaton (Gt) of carbon over the next 30 years, but what can you do about that on your own? How does a Gt even make sense in your own life in terms of your energy sources and consumption? The first step understanding these numbers is to quantify the energy you use every day for your home, commute to work, entertainment, and travel. The second step to make this relevant to climate change is to translate that energy use into CO2 emissions that have meaning to you. In this talk I show how we can easily frame all these numbers based on a bottom line: the energy in food we eat for one day, and how much CO2 we release from eating that food. When energy is expressed using these numbers, we can see how important using a gallon of gasoline is relative to energy use for our home, travel, and all the energy use and carbon emissions that go into just putting that food on the table.
