KIVI’s Isaiah Sharp talks with Dr. Bill Palmer, a physician at Boise Asthma and Allergy Clinic, to find out whether all that cottonwood fluff you see in the air is making you sneeze. Click on the video player above to watch the report. | Isaiah Sharp, KIVI GARDEN CITY (KIVI) — It’s that time of year when cottonwood fluff begins to scatter across the Treasure Valley, covering large portions of the greenbelt. Many believe the fluff causes allergie…