International Environmental Agreements
Kyoto Protocol and Paris Agreement
The Kyoto Protocol (1997) was a landmark treaty that set binding emission reduction targets for industrialized countries. Canada signed on, but the relationship soured over time. In 2011, the Harper government formally withdrew from the agreement, making Canada the first country to do so. The stated reasons included the economic costs of compliance and frustration that major emitters like China, India, and the United States were not bound by the same targets. This withdrawal drew significant international criticism and raised questions about Canada's credibility on climate issues.
The Paris Agreement (2015) took a different approach, requiring all signatory nations to set their own targets rather than imposing top-down limits. Canada ratified it in 2016 under the Trudeau government and committed to reducing greenhouse gas emissions by 30% below 2005 levels by 2030. That target was later increased to 40–45% below 2005 levels by 2030, reflecting growing urgency around climate science.
Climate Change Initiatives and Emissions Reduction
Canada participates in international climate conferences (the annual COP meetings) and has launched several domestic initiatives to cut emissions:
- Phasing out coal-fired power plants (completed federally by regulations targeting 2030)
- Investing in renewable energy sources like wind, solar, and hydroelectric power
- Encouraging energy efficiency improvements in buildings and transportation
Despite these efforts, Canada has consistently struggled to meet its stated targets. The country's resource-based economy, particularly the oil sands in Alberta, makes deep emissions cuts politically and economically difficult. Canada remains one of the highest per-capita greenhouse gas emitters among G7 nations, and the gap between pledged targets and actual emissions reductions has been a recurring theme in Canadian climate politics.
Domestic Environmental Legislation
Environmental Protection and Assessment
The Canadian Environmental Protection Act (CEPA, 1999) is the primary federal law for preventing pollution and protecting both the environment and human health. It gives the federal government authority to:
- Regulate toxic substances and require pollution prevention planning
- Set national environmental quality objectives and standards
- Respond to environmental emergencies
Federal environmental assessment is the process of evaluating proposed projects for their potential environmental impacts before they're approved. This applies to projects under federal jurisdiction, such as pipelines, mines, and ports. The process requires public participation and, critically, consultation with Indigenous communities whose lands and rights may be affected. The rules governing this process have shifted over time: the Harper government's 2012 omnibus bills significantly narrowed the scope of federal environmental reviews, while the Trudeau government passed the Impact Assessment Act (2019) to broaden them again. In 2023, the Supreme Court ruled key parts of that act unconstitutional, finding that it overstepped federal jurisdiction, which created fresh uncertainty about how environmental reviews would work going forward.
Carbon Pricing and the Green Plan
Carbon pricing puts a cost on greenhouse gas emissions to encourage businesses and consumers to reduce their carbon footprint. It can work in two main ways:
- A carbon tax, which directly charges a set price per tonne of emissions
- A cap-and-trade system, which sets an overall emissions cap and lets companies buy and sell emission permits
The federal government implemented a national carbon pricing system in 2018 (the Greenhouse Gas Pollution Pricing Act). Provinces could design their own equivalent systems or have the federal backstop applied. This policy became one of the most politically divisive environmental measures in recent Canadian history, with several provincial governments challenging it in court. The Supreme Court upheld the federal carbon pricing system as constitutional in 2021.
The Green Plan (1990), introduced under the Mulroney government, was an earlier and more comprehensive attempt at environmental action. It addressed a wide range of issues including waste reduction and recycling, wildlife and habitat protection, air and water quality, and sustainable resource management. While ambitious on paper, many of its goals went unfulfilled as government priorities shifted.
Environmental Policy Goals
Sustainable Development and Arctic Sovereignty
Sustainable development is the principle of balancing economic growth, social well-being, and environmental protection so that present needs are met without undermining future generations. In practice, this means managing natural resources responsibly, conserving biodiversity, and reducing environmental harm. Achieving it requires cooperation among governments, industry, and communities, which is easier said than done when economic pressures push in the opposite direction.
Arctic sovereignty connects environmental policy to national security and territorial claims. As climate change melts Arctic sea ice, the region is becoming more accessible for shipping routes and resource extraction. Canada has worked to assert its jurisdiction over the Northwest Passage, which it considers internal waters (a claim the United States and others dispute, calling it an international strait). Environmental protection is central to Canada's Arctic strategy because the region is especially vulnerable to climate impacts, oil spills, and overfishing. Organizations like the Arctic Council, of which Canada is a founding member, provide a multilateral forum for addressing these overlapping concerns.