Thomas Michael McMillan, (born October 15, 1945) is a Canadian political scientist and former politician, the country's third-longest-serving Minister of the Environment (after John Roberts under Pierre Trudeau and Catherine McKenna under Justin Trudeau), in office from 1985 to 1988. A member of the Progressive Conservative Party of Canada, he was the Member of Parliament (MP) for Hillsborough from 1979 until 1988. McMillan is a graduate of St. Dunstan's University (now part of UPEI) and Queen's University (master's in political studies) and has a doctorate in humane letters, honoris causa, from Bridgewater State University. Biography Born in Charlottetown, Prince Edward Island, McMillan was first elected to the House of Commons of Canada in the 1979 general election as the Progressive Conservative Member of Parliament for Hillsborough, Prince Edward Island. He was re-elected in the 1980 and 1984 elections. He served as Deputy House Leader from 1983 to 1984 under Leader of the Opposition Brian Mulroney. Following the Tory landslide in the 1984 general election, Mulroney appointed McMillan to Cabinet as Minister of State for tourism. A year later McMillan was named Minister of the Environment, replacing the controversial Suzanne Blais-Grenier. As Environment Minister, McMillan spearheaded the Mulroney government's creation of five new national parks (Ellesmere Island, Pacific Rim, Bruce Peninsula, Gwaii Haanas, and Grasslands); ushered through Parliament the first comprehensive Canadian federal environmental law in almost two decades (the Canadian Environmental Protection Act, aka CEPA); overhauled the Canadian National Parks Act, the first time in half a century; launched a major national program to combat acid rain from all sources (both industry and transportation); slashed allowable motor-vehicle nitrogen oxide exhaust emission levels in Canada; outlawed lead in motor vehicle gasoline; assembled, and then chaired, in 1987, the world conference that produced the milestone Montreal Protocol on Substances that Deplete the Ozone Layer, described by then-United Nations Secretary-General Kofi Annan as "perhaps the single most successful international agreement to date." He also hosted the landmark 1988 World Climate Change Conference, in Toronto. In the spring of 1988, McMillan was Graves Lecturer and Hoyt Fellow at Yale University, New Haven, Connecticut For McMillan's national and global environmental leadership, he was named by Outdoor Canada magazine, in 1990, one of three people who, in the previous decade, "did the most to protect Canada's natural environment;" the U.S. Sierra Club bestowed on him, in 1988, its prestigious Edgar Wayburn Award; he received, also in