waters forced them from their gravesites. >> it's heartbreaking to see that no one's really trying to put them back. >> reporter: ironton is where the mississippi river meets the gulf of mexico south of new orleans. much of the area is below sea level and it has the dubious distinction of being one of the fastest-vanishing places on the planet due to climate change and due sea level rise. a recent epa report found minorities are likely to live on land endangered by rising sea levels and more likely to die from extreme temperatures. but extreme weather is not the only danger. a drive along the mississippi river between new orleans and baton rouge reveals an 85-mile stretch of more than 150 petroleum and chemical companies that have sandwiched whole neighborhoods while spewing harmful emissions. more vulnerable to climate change, more exposed to