Record high temperatures in late October are another reminder that 2017 is the warmest yet on record. With rising temperatures come an increasing number of days of extreme heat. The kind of heat that can cause illness or even kill the vulnerable. Nationally, extreme heat kills more people every year than any other kind of weather event. An increasing number of extreme heat days are now reported in twenty states and the District of Columbia. The Natural Resources Defense Council this week unveiled a new extreme heat map and analysis. It brings the reality of climate change at nationally and at the local level using weather data from around the country over 30 years. Vic Bedoian reports from Fresno.