Our Latest Report

The Real Costs of Ontario’s Nuclear Gamble

This analysis compares Ontario’s planned nuclear-heavy electricity pathway with a renewable energy alternative built around wind, solar, battery storage, and energy efficiency. It finds that the nuclear expansion approach would be significantly more expensive and carry greater financial risk than a cleaner, more flexible system. The findings highlight key questions about affordability, reliability, and the long-term direction of Ontario’s energy future.

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Reports & Guides by Issue

Our work is based on research, science, and a strong understanding of the facts. Below you will find our archive of reports, guides and media backgrounders that are available for download. You can find our government submissions here.

Fossil Fuel Lobbying Under PM Carney: A Year of Unprecedented Access

Fossil Fuel Lobbying Under PM Carney: A Year of Unprecedented Access

This backgrounder examines the unprecedented level of access the fossil fuel industry had to the federal government during Prime Minister Mark Carney’s first year in office. Drawing on data from the federal Registry of Lobbyists, it highlights the scale of industry lobbying, identifies the most-lobbied ministers and companies, and explores how increased...

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Mounting Costs

Mounting Costs

Climate change is rewriting the rules of home insurance across Canada, as wildfires, floods, and extreme weather events increase in frequency, insurance premiums are rapidly rising. Understanding the risks and acting on them has never been more critical for Canadian families and communities.

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Climate Promises, Industry Handouts: $10 Billion Fossil Fuel Subsidies 2025

Climate Promises, Industry Handouts: $10 Billion Fossil Fuel Subsidies 2025

In 2025, Canadians struggled to deal with increasing climate impacts and an affordability crisis. Yet, the Government of Canada continued to provide billions in public support to the same fossil fuel companies that are driving climate change. This ongoing support comes as other countries choose to accelerate towards cleaner and cheaper forms...

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Media Backgrounder: Fossil Fuel Fact Check

Media Backgrounder: Fossil Fuel Fact Check

Misinformation and disinformation about climate change are on the rise. It erodes trust in climate solutions and weakens the political base of support for climate policies and government action. While burning fossil fuels is the primary cause of the climate crisis, conflicting information about oil, gas and coal proliferates and pro-fossil fuel...

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New Government, Same Big Oil Playbook: 2025 Fossil Fuel Lobbying Report

New Government, Same Big Oil Playbook: 2025 Fossil Fuel Lobbying Report

Environmental Defence’s tracking of fossil fuel industry lobbyists reveals that Big Oil had at least 986 meetings with the federal government in 2025, nearly four per working day. With the federal election early in 2025, the fossil fuel lobby acted quickly to pressure the new government to grant its wishlist of environmental...

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