The season between green and smoke

There is a brief version of Lethbridge that only appears when the timing is right.

The coulees turn green. The cottonwoods fill in along the Oldman River. The evenings stretch late enough to make plans after supper, and the light comes across the valley at an angle that gives every fold in the grass a shape.

It doesn’t last.

Southern Alberta is an arid place. By the middle of summer, the slopes usually begin their return to brown. The green arrives with spring moisture and leaves with heat. If I want to photograph the river valley at its most alive, I have a small window to do it.

Lately, that window has acquired another condition.

The rain can arrive. The grass can come up. The light can be right. But if smoke has erased the horizon, the season I was waiting for is present and unavailable at the same time.

The view is part of the place

Lethbridge is often described through what is close: the High Level Bridge, the river, the steep coulees, the wind.

But much of the landscape depends on distance.

From the west side of the city, the valley opens toward the mountains. Long lenses compress the coulees into layers. A clear evening separates the near grass, the cottonwoods below, the farms beyond the city, and the Rockies at the edge of visibility. Even when the mountains barely register, they give the frame somewhere to go.

Smoke collapses those layers.

Contrast disappears first. Then colour. The far side of the valley softens into grey, and eventually the horizon becomes a blank surface. A camera can record the haze, sometimes beautifully, but it can’t recover the distance that isn’t reaching the lens.

Tourism Lethbridge promotes these same things as reasons to bring a camera: the walking trails through the coulees, the river valley, the High Level Bridge, and the distant mountain views from the University of Lethbridge. Clear air isn’t listed as an attraction. It has always been treated as a condition too ordinary to mention.

That is changing.

Another forecast to check

Outdoor production has always involved uncertainty. I check the wind because this is Lethbridge. I watch for rain. I look at cloud cover, sunrise, sunset, and whether the light will be on the side of a building I need to film.

Now I also check the Air Quality Health Index, particulate readings, smoke models, and fires burning hundreds or thousands of kilometres away.

The weather can be perfect while the day itself is unusable.

That distinction matters because smoke isn’t only a visual problem. Fine particulate matter, known as PM2.5, is the main health risk in wildfire smoke. During smoke events, Environment and Climate Change Canada adjusts the AQHI to use hourly PM2.5 readings so the index can respond more directly to changing conditions. Alberta warns that wildfire smoke can both reduce visibility and make outdoor activity unsafe.

The photograph is the obvious loss to me because cameras are how I work. It isn’t the most serious loss.

People are evacuated. Homes burn. Firefighters and outdoor workers spend long days in dangerous air. Children, older adults, pregnant people, and anyone with heart or lung conditions can face greater risks. A cancelled shoot or a spoiled view belongs near the bottom of that list.

But it still belongs on the list.

Climate change often enters daily life as an abstraction: a graph, a national average, a future projection. In creative work, it can arrive as another browser tab and another reason the plan no longer works.

A summer day can’t always be moved

Some production problems have straightforward answers.

Rain can move an interview indoors. A cloudy day can become a close-up day. If a commercial exterior doesn’t work in May, perhaps it can be rescheduled for June.

Seasonal landscapes are less forgiving.

The green coulees, spring wildflowers, long evenings, and clear western horizon have to overlap. Miss that intersection and there isn’t an equivalent day waiting in September. The light will be different. The grass will be dry. The season will have moved on.

This is also true beyond production. A family visiting Waterton can’t move the mountains closer when smoke fills the valleys. A runner can’t negotiate with PM2.5. An outdoor event can’t bring clear air in with the rest of its rented equipment.

The loss is rarely dramatic enough to become a headline. It accumulates through ordinary decisions.

Don’t take the kids to the park today. Skip the ride. Move the portrait session. Cancel the hike. Wait for tomorrow.

Then tomorrow looks the same.

The argument at the border

This summer, smoke from Canadian wildfires travelled into the United States and prompted air-quality warnings across the Great Lakes and the Northeast. President Donald Trump blamed Canada and threatened to add what he called the cost of the pollution to tariffs on Canadian goods.

It is tempting to answer that kind of argument with an equally simple one.

Smoke crosses both ways. Fires in the United States send smoke north. American communities burn too. The atmosphere doesn’t recognize customs declarations.

All true. None of it makes the air easier to breathe.

The more useful contrast is between political blame and operational reality.

Canada and the United States have shared wildfire personnel and equipment for decades. The formal arrangement dates to 1982. State agencies and Canadian provinces also work through regional compacts, moving crews and resources according to need rather than nationality. While politicians describe smoke as an invasion, firefighters cross the same border to help put out the fires.

That is what being neighbours looks like.

Not pretending that the consequences stop at the line. Not denying responsibility for forest management, climate policy, emergency capacity, or the conditions that make severe fires more likely. It means recognizing that air is shared, risk is shared, and the response has to be shared too.

A tariff can’t turn the wind around.

What clear air is worth

The 2026 fire season doesn’t need to be the worst on record to matter.

Canada’s federal outlook in May expected fire danger to build through July, with British Columbia facing the highest sustained risk. By mid-July, the federal response had escalated as fires, smoke, and extreme heat affected communities across the country. The comparison everyone reaches for is 2023, an extraordinary season. But waiting for every year to break a national record is a poor way to measure what is becoming normal in a particular place.

In Alberta, provincial data show that central and southern communities, including Lethbridge and Medicine Hat, tend to experience more smoke days later in the wildfire season, especially in August.

That means the sequence is becoming familiar.

The coulees green up. Heat returns. Fire activity builds. Smoke arrives.

I don’t want to romanticize the clear days as if summers here were ever predictable. Lethbridge has always been shaped by wind, drought, fire, and sudden weather. Nor do I want to suggest that every smoky sky can be traced neatly to climate change. Fires start for many reasons, and smoke follows complicated paths.

What has changed is the expectation.

Clear air now feels less like the background and more like an event worth noticing.

When it arrives, I look west. I pay attention to how far I can see. I think about whether I should take the camera out now, even if I had planned to do it later.

The season between green and smoke was never marked on a calendar. It was simply the part of summer when several ordinary conditions happened to overlap.

Rain made the landscape. Long light made it visible. Clear air let us be there.

Now, when those things arrive together, the day feels briefly complete.