Blue Moon Glows: Canadian Fires Obscure Sun Globally
Massive forest fires across Canada and New England pumped so much smoke into the upper atmosphere that the sun vanished behind a dark haze and the moon turned blue as far away as Europe. The phenomenon demonstrated for the first time how large-scale wildfires could alter atmospheric optics across an entire hemisphere, a preview of the climate disruptions that fire seasons would increasingly produce.
September 24, 1950
76 years ago
What Else Happened on September 24
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