How to work out in the heat

Maps from the Climate Impact Lab, a data-driven research group, show projected average temperatures in the summer months both in the near term (2020-2039) and in the not-so-distant future (2080-2099) under a scenario of high global greenhouse gas emissions. It’s going to be hot. Estimates expect New York, for instance, to have an average of about 4 days over 95 degrees every year for the next two decades. But 60+ years from now, if emissions remain high, experts project 30 days above 95 each year. Colorado would jump from 17 to 54 95+ days annually; Arizona from 137 to 179.