Sam Brasch
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Colorado's governor has declared a state of emergency as winds are driving several large grass fires. Two towns in Boulder County have been evacuated with more than 20,000 people fleeing the fires.
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Colorado is trying to fight both poverty and climate change by retrofitting low-income homes. Now the state set to get a big boost from the new federal infrastructure law.
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Wildfires, and the scorched hillsides they leave behind, can threaten drinking water for years after the smoke clears. One Colorado community is trying to get ahead of the problem.
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After years of frustration over air pollution, a petroleum refinery in Colorado agreed to a settlement. Nearby residents are spending some of that money to set up air monitors around the plant.
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Evolving technology is making it possible to turn sewage wastewater into energy that can heat and cool large buildings. The largest such project in the U.S. is under construction in Denver.
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Residents of Colorado and neighboring states are digging out after one of the heaviest snowstorms on record. But it won't make more than a dent in alleviating the region's severe drought.
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The country's overgrown forests need to be aggressively thinned to reduce wildfire risk. That creates massive piles of worthless brush and branches, but some businesses see a new market for them.