Dismantling Environmental Protection in Ontario - By Gord Miller
June 5, 2025

As a former environmental commissioner appointed by an Ontario Progressive Conservative premier, I feel compelled to share my perspective on the recent developments surrounding Bill 5, which, in its current form, poses a profound threat to the foundational principles of Ontario’s environmental protection framework. This bill, with its sweeping provisions and potential to dismantle decades of environmental progress, warrants serious reconsideration.
Ontario’s environmental protection system is a testament to years of dedicated effort, legislative innovation, and societal consensus that values healthy ecosystems, biodiversity, and sustainable development. The policies and laws we have developed over the past fifty years are not merely bureaucratic codifications; they embody our collective acknowledgment that our well-being is intrinsically linked to the health of our environment. These laws, from defining pollution as an “adverse effect” to protecting species at risk and requiring thorough environmental assessments, represent a conscious effort to balance development with ecological stewardship.
Reflecting on the origins of these policies, it’s clear that Ontario laid robust foundational principles in the early 1970s, recognizing the need for legal clarity, scientific accuracy, and public involvement. For example, the Environmental Protection Act (1971) introduced an essential concept: pollution occurs when contaminants cause adverse effects—a broad and flexible definition that allows for judicial interpretation yet firmly establishes that discharges harming our environment and health are unacceptable. This definition built on the understanding that pollution isn’t just about visible waste but encompasses a range of impacts that diminish our quality of life.
Similarly, the enactment of the Endangered Species Act signified a societal recognition that our responsibilities extend beyond immediate human interests to include the preservation of our natural heritage. Listing species at risk and protecting their habitats—initially through legal designations and later refined with scientific input—demonstrated our commitment to preventing the irreversible loss of biodiversity. Changes to these protections, especially political manipulation of species listings, threaten to undo decades of progress and expose Ontario's rich ecological tapestry to unnecessary peril.
Additionally, Ontario’s approach to environmental assessment (EA) established a systematic process for evaluating the environmental implications of significant projects before their approval. Requiring governments to consider the need being addressed, alternative solutions, assess impacts, and consult the public encouraged transparent decision-making and minimized harm to ecosystems. Such an approach was revolutionary and set a standard that many other jurisdictions have since emulated. Abandoning or diluting these principles for expediency risks not only environmental degradation but also erodes public trust in our governance.
Against this backdrop, the provisions of Bill 5 are deeply concerning. The introduction of the Special Economic Zones Act, 2025, which grants Cabinet broad authority to exempt projects from existing environmental laws, signals a perilous shift toward executive discretion over environmental safeguards. Such sweeping exemptions could effectively nullify protections for air, water, land, and wildlife, opening the floodgates to environmentally harmful development driven solely by economic interests.
Furthermore, the bill’s attack on the Endangered Species Act, particularly the narrow definition of habitat and the potential for political delisting of species, undermines the very purpose of these protections. Protecting only breeding or restricted survival areas overlooks the broader ecological needs of species—especially those, like predators, that require extensive ranges for feeding and migration. Eliminating the independence of scientific bodies like COSSARO and transferring species listing authority to political actors invites manipulation, eroding scientific integrity and leading to decisions driven by transient political priorities rather than ecological realities.
Most troubling, however, is the bill’s repudiation of the environmental assessment process by allowing certain large-scale projects—such as mines and landfills—to bypass rigorous review altogether. This approach abandons the incremental, thoughtful steps that have helped Ontario avoid environmental catastrophe and the social discord that often accompanies unplanned development. Those processes—though imperfect—are foundational to sustainable planning, ensuring communities are consulted, impacts are understood, and alternatives are considered.
From a broader perspective, this bill appears to represent an ideological shift away from environmental stewardship and toward unchecked economic growth at all costs. It seems designed to appease short-term economic pressures and diminish the role of science, public participation, and precaution in environmental decision-making. Such a trajectory risks deconstructing the very ethos that has made Ontario a leader in environmental policy, turning a trust-based system into one susceptible to patronage and arbitrary decision-making.
In my view, the damage inflicted by Bill 5 will be long-lasting. Once protections are eroded, they are difficult to rebuild, and the environmental costs—loss of biodiversity, degraded water and air quality, diminished ecological resilience—are irreversible. Our responsibility is to uphold the principles that have served us well, ensuring that development proceeds hand-in-hand with environmental care.
Ultimately, we must ask ourselves: what kind of legacy do we want to leave for future generations? Will Ontario be remembered as a jurisdiction that prioritized environmental health and scientific integrity, or one that betrayed its natural heritage for fleeting economic gains? The choices we make today—embodied in legislation like Bill 5—will define that legacy. I urge policymakers, stakeholders, and all Ontarians to recognize the importance of preserving our ecological awareness and safeguarding the laws.