The article explores the idea of including agriculture in CO2 pricing to help reduce greenhouse gas emissions. CO2 pricing is a way to charge for carbon pollution to encourage companies and individuals to emit less. The researchers suggest that including agriculture in this system could lead to better emissions reductions and lower costs compared to other climate policies. However, they point out challenges in integrating agriculture into emission trading due to the diverse sources of agricultural emissions. The German government's recent climate protection law includes measures to bring heating and fuel under CO2 pricing, showing a potential for significant emission reductions.