Agricultural support has changed in rich and poor countries. Rich countries have reduced subsidies and protection rates, while developing countries still heavily support agriculture. Emissions from agriculture contribute to greenhouse gases, with beef, milk, and rice production being major contributors. Support for emission-intensive goods has shifted slightly. Developing countries have seen faster reductions in emission intensities due to increased productivity. Policy reform is needed to improve environmental outcomes. Increasing research and development investments can help raise productivity and lower emissions in agriculture.