A Disillusioned ExxonMobil Engineer Quits to Take Action on Climate Change and Stop ‘Making the World Worse’ After 16 years of working for the oil giant, Dar-Lon Chang said Exxon would not address climate change. So he quit the sector for good, and began a new low-carbon life. February 8, 2021 Dar-Lon Chang, who was an engineer for ExxonMobil for more than 15 years, left his career in the fossil fuel industry in Houston and moved to the Geos Neighborhood, a geosolar development in Arvada, Colorado, with his wife and daughter. "I just wanted to go all the way and be a part of a community where my daughter could live fossil fuel-free and net-zero," he said. "So she could see it was possible." Credit: Michael Kodas/Inside Climate News