The Aedes aegypti mosquito that can carry dengue was thought to be too reliant on a hot and wet climate to survive in the Mountain West. But now, a population is thriving in Western Colorado.Story by Erin Douglas, photos by Isabella EscobedoGRAND JUNCTION, Colo.—It can carry life-threatening diseases. It’s difficult to find and hard to kill. And it’s obsessed with human blood.
Observations from the Little Bunker
Last updated: November 30, 2025 04:25 AM
Atmospheric CO₂
426.8 ppm
+18.1
ppm/year
Atmospheric CH₄
1927.61 ppb
+2.73
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year