3 min read Gregg Garfin, climatologist at the UA and member of the City’s Climate Change Committee, published a guest editorial in the Arizona Daily Star this morning. Gregg is a bus rider and advocates for affordable transit and incentives to encourage people to use mass transit. Here’s the full text: We know that global and regional temperatures are increasing as a consequence of human activities that add heat-trapping gases to the Earth’s atmosphere. These gases trap heat in the lower atmosphere, where we live, disrupt weather and climate episodes around the planet, and increase the chances that Tucson will experience heat waves of