Summers in Phoenix pose a daily health threat to Leonor Juarez and her family. She and her five children have asthma, and struggle to breathe the ovenlike air that ripples off...
Read on scientificamerican.comSummers in Phoenix pose a daily health threat to Leonor Juarez and her family. She and her five children have asthma, and struggle to breathe the ovenlike air that ripples off...
Read on scientificamerican.com