It’s being called an invisible weather disaster. It’s extreme heat and it’s leading to more deaths than those resulting from floods, hurricanes and tornadoes — with Arizona’s Maricopa County seeing a steep jump in heat-related fatalities. The growing threat is motivating researchers to address the problem, among them Ariane Middel, an associate professor in the School of Computing and Augmented Intelligence and director of the SHaDE Lab, and Konrad Rykaczewski, an associate professor in the School for Engineering of Matter, Transport and Energy. Both schools are parts of the Fulton Schools and both faculty members have developed technology to gain knowledge about extreme heat and find more effective ways to protect people from its dangers.