By Julie Dermansky

Early morning skies Wednesday in Baton Rouge, Louisiana, were alight from a fire that started around 2:30 a.m. at an ExxonMobil refinery. The blaze, though contained before the sun came up, is a reminder to the surrounding community of yet another danger of living next to refineries and chemical plants.

Exxon's refinery is located along the stretch of Mississippi River between Baton Rouge and New Orleans known as "Cancer Alley" due to the high number of chemical plants and refineries—and illnesses possibly connected to emissions—along the river's banks.