In addition to all this wildfire smoke, there is also an invisible pollutant called ozone that is making the air quality even worse on the Front Range. You may not be able to see the ozone pollution in the air, but you can see it on plants.
A 1987 treaty to repair a thin layer of ozone in the atmosphere that shields life on Earth from cancer-causing ultraviolet rays probably had the unintended benefit of preventing runaway climate change, even if that danger persists for other reasons, researchers said Wednesday.
Along Colorado's Front Range, bad air is becoming the summer norm. And while this year's pollution, which data shows is some of the worst in decades, may bother you now, it is relatively benign compared with what scientists project for the future.