 Complete the following phrase:  Chambers was born in Haliburton, Ontario, Canada. Before joining CMS, he was the Senior Legal Officer and Chief of the Law and Goverce Branch of UNEP. An important part of UNEP responsible for developing international environmental law, providing capacity building and technical guidance on goverce and legal issues to developing countries. Chambers has been a frequent contributor to international environmental goverce reform and processes either through his exploration of new concepts of law and goverce through his many writings or through offering alternative options for developing international environmental reforms. In 2010 Chambers led the International Environmental Goverce Strategic Team working directly for the then Executive Director Achim Steiner. The team led the secretariat for the Nairobi-Helsinki Ministerial Consultative Process International Environment Goverce which made key recommendations on strengthening UNEP. In 2012 at Rio20 Chambers continued to lead the team and engage governments resulting in a final outcome in 