The Marshall fire made a lot of Coloradans think about how vulnerable our homes and businesses are to extreme weather. Half of residents live in places prone to wildfire, according to the state. Ed Kearns, chief data scientist with a national service called Risk Factor, wants people to consider climate risks in decisions about where to live and work. Kearns tells Colorado Matters about his non-profit that estimates a property’s susceptibility to floods, fire and extreme heat. These scores are listed on its website and on Redfin and Realtor.com.