b'
Cooling down our addiction to air conditioning by building a more energy efficient AC. Also, it\\u2019s a \\u201cwind, wind, wind\\u201d for cargo ships powered by sails; engineering students in Los Angeles design quality-of-life solutions for refugee camps; a navigation app helps drivers get around Nigeria; the drive to thwart diseases like malaria and dengue by altering the genes of mosquitoes.
(Photo: Air conditioning units in Antwerp, Belgium on Tuesday, July 23, 2019. Credit: Dirk Waem/AFP via Getty Images)
'