Greenhouse Gas Emissions at the Urban Scale

Cities are responsible for more than 70% of global anthropogenic greenhouse gas emissions from buildings, transport, energy, industry, and waste-related sources. Improved urban-scale emission estimates are essential for understanding local trends and providing guidance for mitigation strategies. Current research in cities around the world is focused on establishing more robust methods for quantifying and modeling urban-scale emissions of the most abundant anthropogenic greenhouse gases: carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).