Ajai Malhotra Stockholm (Nairobi; 1982); contribution to the drafting of the 1990 London Amendments to the Montreal Protocol on Substances that Deplete the Ozone Layer, Convention on Biological Diversity, UN Framework Convention on Climate Change, Rio Declaration on Environment and Development, Statement of Principles on Forests, and Agenda 21; and participation in the UN Conference on Environment and Development (Rio de Janeiro; 1992). He was a member of the UNEP group of legal experts to examine the concept of "Common Concern of Mankind" in relation to global environmental issues. He was Counsellor (Information) at the Indian Embassy, Moscow, from 1993–1996, returning to
Montreal Protocol and HCFCs. Thus, in 2009, a study calculated that a fast phasedown of high-GWP HFCs could potentially prevent the equivalent of up to 8.8 Gt CO2-eq "per year" in emissions by 2050. A proposed phasedown of HFCs was hence projected to avoid up to 0.5C of warming by 2100 under the high-HFC growth scenario, and up to 0.35C under the low-HFC growth scenario. Recognizing the opportunity presented for fast and effective phasing down of HFCs through the Montreal Protocol, starting in 2009 the Federated States of Micronesia proposed an amendment to phase down high-GWP HFCs, with the U.S., Canada, and