Driving through the back roads from Ottawa to Toronto in April felt unsettling in a way that is difficult to describe until you see it for yourself. Entire stretches of roads were overwhelmed with water. Fields had turned into temporary lakes. Rivers and lakes pushed beyond their banks, swallowing entire homes and businesses. Across Ontario and Quebec, municipalities declared states of emergency as floodwaters displaced residents and strained already fragile infrastructure.

What struck me most was not simply the scale of the flooding, but how familiar the official response sounded. Once again, politicians and the media described the disaster as “unprecedented” or “once-in-a-century.” Once again, governments shifted into emergency mode: evacuation notices, sandbags, temporary closures, disaster relief.

But there is something deeply misleading about framing these floods primarily as natural disasters. While the rainfall itself may be natural, the scale of destruction is profoundly political. Climate scientists, urban planners, and environmental researchers have warned for years that intensified flooding would become more common across Canada as the climate warms. The issue here is that governments, with all the repeated warnings, failed to prepare for these floods.

Calling every major flood a “once-in-a-century” event allows political leaders to avoid confronting a much more uncomfortable reality: these disasters are becoming normalized under climate change, while our infrastructure, planning systems, and political institutions remain dangerously unprepared.

Climate change meets neglected infrastructure

The crisis unfolding across much of Ontario and Quebec is about governance.

For decades, municipalities across Canada have struggled with aging stormwater systems, deteriorating roads, overwhelmed drainage infrastructure, and chronic underfunding. Many urban drainage systems were designed for weather patterns that no longer exist. As rainfall becomes more intense and unpredictable, these systems are increasingly incapable of managing the volume of water they are forced to absorb.

Cities continue approving rapid development projects without adequately investing in flood mitigation infrastructure or reassessing land-use planning in high-risk areas. Wetlands that once absorbed excess water have been paved over. Green space has disappeared in favour of highways, subdivisions, and commercial development. Climate adaptation measures are often delayed because they are expensive, politically inconvenient, or less visible than short-term development projects.

The current flooding has been driven by a combination of heavy rainfall events and freshet flooding. Freshet refers to the seasonal swelling of rivers caused by rapid snowmelt, often intensified by spring rainfall. While freshet flooding has long been part of seasonal cycles in parts of Canada, climate change is increasing both the intensity of rainfall and the instability of seasonal transitions, creating conditions for more severe and more frequent flooding events.

The increasing frequency of floods linked to heavy rainfall and freshet events point to the fact that these disasters are a part of a broader and accelerating pattern.

Flooding is not experienced equally

And like most climate disasters, the impacts are not distributed equally.

Driving through eastern Ontario, many of the regions where flooding appeared most severe were also communities with relatively modest median incomes. In municipalities such as Addington Highlands, Bancroft, Faraday, and Highlands East, median household incomes range from roughly $57,000 to $64,000 per year. As climate disasters intensify, rural and lower-income communities are increasingly expected to absorb costs they are least equipped to bear.

Flooding, and climate disasters in general, exposes these inequalities. Lower-income communities are often more likely to live in areas vulnerable to environmental hazards while having fewer resources to recover afterward. Renters may lose homes and possessions without receiving meaningful compensation. People without savings or comprehensive insurance coverage are forced to absorb enormous financial costs on their own. Meanwhile, wealthier homeowners and corporations are often better positioned to rebuild, relocate, or access private protections.

Across Canada, some regions are already becoming effectively uninsurable as insurers raise premiums or withdraw coverage altogether due to growing climate risk. Once again, responsibility is increasingly being transferred onto individuals.

As the waters rise, so does the expectation that ordinary people will bear the burden.

This dynamic is especially concerning for Indigenous communities, many of which have faced repeated flooding for years while receiving inadequate long-term support from governments. 

Emergency response cannot replace climate adaptation

Governments have largely approached climate adaptation reactively rather than proactively. Public attention spikes during disasters, which in turn prompts emergency declarations and temporary relief measures, but long-term structural investment remains insufficient. Sandbags, evacuation centres, and emergency funding may reduce immediate catastrophe, but they do not address the underlying conditions that make flooding so destructive in the first place.

Canada has spent years treating climate adaptation as something that can be postponed until later. But “later” has arrived.

The flooding now affecting Ontario and Quebec should force a broader political conversation about what climate preparedness actually means. It means investing massively in resilient public infrastructure. It means strengthening floodplain protections and reassessing development practices. It means restoring wetlands and green spaces rather than sacrificing them for endless expansion. And it means recognizing climate adaptation as a matter of public safety and collective responsibility, rather than simply an individual problem for homeowners and municipalities to navigate alone.

Most importantly, it means abandoning the comforting fiction that these disasters are unexpected.

Driving through flooded towns last month, one thing became impossible to ignore: the real disaster is the political failure that allowed communities to remain so vulnerable long after the warnings became impossible to deny.