Since 1989, CIEL has used the power of law to protect the environment, promote human rights, and ensure a just and sustainable society.

With offices in Washington, DC, and Geneva, Switzerland, CIEL’s team of attorneys, policy experts, and support staff works to provide legal counsel and advocacy, policy research, and capacity building across our three program areas: Climate & Energy, Environmental Health, and People, Land, & Resources.

CIEL also has a vibrant intern program for law students and fellows in both our DC and Geneva offices to educate the next generation of international environmental advocates. Over its 25 years, CIEL has trained more than 425 interns and law fellows from 54 countries. In conjunction with this program, CIEL conducts a joint research and teaching program with American University’s Washington College of Law.

CIEL recognizes exceptional contributions to international environmental law each year with its annual International Environmental Law award and recognizes outstanding contributions to addressing climate change through its semi-annual Frederick R. Anderson Climate Change Award.