
Environment Canada meteorological observation, Charlottetown, PEI, December 1873.
This is the seventh post in the series, “Historians Confront the Climate Emergency,” hosted by ActiveHistory.ca, NiCHE (Network in Canadian History & Environment), Historical Climatology and Climate History Network.
By Alan MacEachern
They say that climate is what you expect but weather is what you get. Or they used to say that. Now, the climate seems to be changing as quickly and unexpectedly as weather. When New York’s Central Park receives a record 48 millimetres of rain in one hour and then, just ten days later, a different storm system dumps 79 millimetres in one hour, it feels as though more than just weather is at work.[1] And why wouldn’t climate be changing rapidly? It used to take millennia for atmospheric carbon dioxide levels to fluctuate just ten parts per million. Now it takes five years. That cannot be good news for anyone.
I taught environmental history for twenty-plus years before developing a course in climate and weather history. It had taken me a while to recognize the centrality of climate change to environmental affairs, longer to become well-informed on the topic, longer still to feel competent enough to teach it, and longer still to determine how to structure such a course and what I might contribute. But in 2014, having helped bring Environment and Climate Change Canada’s extant historical weather observations to my university’s archive on long-term loan, I knew it was time to take the plunge.[2] I developed a course around the meteorological collection, used its material in lectures and seminar activities, and devoted full assignments to it.[3]
And the course was a bust.