Visitors and conservationists will bask in the darkness of Keweenaw County this weekend during the Great Lakes Aurora Dark Sky Jamboree.By K.R. CallawayAt the northern tip of Michigan’s Upper Peninsula, where rugged cliffs jut out toward Lake Superior, Keweenaw County is known for its rich biodiversity and opportunities for outdoor recreation. One of the region’s most remarkable qualities, though, is its darkness.
Observations from the Little Bunker
Last updated: October 16, 2025 02:57 AM
Atmospheric CO₂
424.4 ppm
+18.2
ppm/year
Atmospheric CH₄
1933.54 ppb
+12.29
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year