This article looks at how the production and use of transportation fuels and electricity contribute to greenhouse gas emissions. These emissions come from more than just carbon dioxide (CO2) – they also include gases like methane (CH4) and nitrous oxide (N2O. In developed countries, transportation and electricity make up a big chunk of these emissions. Analysts are studying different energy strategies to see how they might affect global climate change. The goal is to understand how our choices about energy impact climate for the future.