Dr. Saxe studied law at Osgoode Hall Law School, earning an LL.B. in 1974 and a Ph.D., also from Osgoode, in 1991. She practiced law with the Ontario government for 14 years, worked in two major law firms and then ran an environmental law boutique firm for 25 years. For example, she represented the Association of Municipalities of Ontario in their successful $115 million claim against Stewardship Ontariofor the cost of Ontario's Blue Box program.
After being the Environmental Commissioner of Ontario, Dr. Saxe reopened her SaxeFacts environmental law practice focussed on climate issues . She publishes articles ,   and a blog and presents on climate issues . She was a McMurtry Clinical Fellow at Osgoode Hall Law School 2019-2020  and is a senior fellow at Massey College. Dr. Saxe hosts a podcast called Green Economy Heroes featuring interviews with green business leaders .
Environmental Commissioner of Ontario
Known for her role as an activist and her work in government and private practice, she was appointed to the position of Environmental Commissioner of Ontario in 2015 by the Legislative Assembly of Ontario, unanimously, for a five year term. The Commissioner was an independent legislative officer, guardian of the Environmental Bill of Rights and required by the Bill  to report to the Ontario Legislature each year on Ontario's progress on each of energy conservation, environmental protection and climate change. She was also permitted to deliver special reports. As Commissioner, she delivered 17 widely used reports to the Legislature on topics including environmental injustice to First Nations , electricity, waste and circular economy, endangered species, water pollution  , soil health and climate policy . She also gave hundreds of talks across Canada.
The Doug Ford Conservative government elected in June, 2018, took strong exception to her critique of their rolling back Ontario's climate change laws and policies  . Soon afterwards, on 15 Nov. 2018, they announced that her position would be abolished by legislation and some of its functions transferred to the Auditor General. Hundreds of scientists plus the majority of Ontarians polled said that this move would have a negative impact on the environment . Her last report was even more critical of the Doug Ford government. After 25 years, the position of the Environmental Commissioner of Ontario, including the role of guardian of the Environmental Bill of Rights, ceased to exist when the Bill was amended on April 1, 2019. .
Awards and recognition
Dr. Saxe is a recipient of numerous awards, including specialist certifications from The Law Society of Upper Canada, Osgoode Hall Law School Alumni Gold Key for Achievement  and a 2020 Law Society Medal for exemplary leadership in environmental law .
Her books include Environmental Offences, Corporate Responsibility and Executive Liability, published by Canada Law Book , and A Buyer's Guide to Contaminated Land . She was the founder and first author of Ontario Environmental Protection Act Annotated . Her analyses have been cited with approval by many courts and commentators across Canada. 
Boards of Directors
Dr. Saxe has sat upon a number of public and private boards, including Draxis Health, Solarshare, WindShare and Evergreen, helped to manage the endowment of the Ontario Bar Association and is recognized as Board-Ready by Women in Capital Markets.
Dr. Saxe is the daughter of Canadian doctor, businessman, media personality and politician Morton Shulman and the mother of MIT Neuroscience professor Rebecca Saxe, and University of Toronto Civil Engineering Professor, Shoshanna Saxe.
- "Congratulations and welcome to the new Commissioner!". Environmental Commissioner of Ontario. Environmental Commissioner of Ontario. Retrieved 24 March 2016.
- "About Dianne Saxe". Slaw: Canada's Online Legal Magazine. Retrieved 24 March 2016.
- "Dianne Saxe '74, '91 (PhD) appointed Environmental Commissioner of Ontario". Osgoode Hall Law School. Osgoode Hall Law School. Retrieved 24 March 2016.
- "Focus: Saxe gearing up for new role as commissioner". Law Times News. Law Times News. Retrieved 24 March 2016.
- "Law Society announces 2020 award recipients". Law Society of Ontario. Law Society of Ontario. Retrieved 10 June 2020.
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