2020 marked the fifth hottest year on record in the United States and one of the most devastating wildfire seasons, with 58,950 blazes scorching more than 10 million acres and nearly 18,000 structures. With much of the state in a drought, Colorado experienced three of its largest-ever fires and one of its longest fire seasons. As temperatures rise again, CU Boulder researchers offer insight into everything from how a changing climate will impact water supplies, crops and landscapes to how best to protect our homes and health from fire and smoke.