State Department's Bureau of Oceans, Environment and Science

The State Department's Bureau of Oceans and International Environmental and Scientific Affairs, often referred to as “Oceans, Environment and Science” or “OES,” was created in 1974 by Congress and is responsible for negotiating international treaties that involve natural resources. More specifically, OES works to advance U.S. foreign policy goals in such critical areas as climate change, renewable energy, resource scarcity, polar issues, oceans policy, infectious diseases, science and technology, and space policy, to name a few.

OES is overseeing the controversial Keystone XL Pipeline Project Environmental Impact Statement (EIS).

Final EIS Fact Sheet