Our very first episode of The Life of the Land, our series about climate change and you, discusses the size of carbon dioxide, a major component of global warming greenhouse gases. When discussing climate change, references to the weight of CO2 are common. But since CO2 is an invisible gas, it's difficult to visualize its impact. In this episode, CJ Villa demonstrates how to "see" the impact of carbon dioxide, as well as the global warming impact of the entire United States.