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Extreme weather and disease can affect americans. often it is low-income communities and people of color who bear the brunt of those growing threats. cnn's rainy marsh explains. >> reporter: it's been nearly three months since hurricane ida, a category 4 storm, slammed louisiana. yet this small black community of ironton looks like the storm hit yesterday. >> they've got people that lost everything, don't know where they're going to get their next meal from. >> reporter: what is that like, having to know that every hurricane season you don't know if you're going to lose everything? >> i've nev...

Going to lose everything again? >> i've never been to war, but i can imagine what a young man that's been in the war and dealing with post-traumatic stress because this is a form of post-traumatic stress. >> reporter: steps away from destroyed homes, caskets with the dead inside sit under the warm louisiana sun. the state-run cemetery task force has not returned them to their resting place after floodwaters forced them from their grave sites. >> it's heartbreaking to see that no one's really trying to put them back. >> reporter: ironton is in b plakaman's perish. must of the area is below sea ...

If you're going to lose everything? >> i've never been to war, but i can imagine what a young man that's been in the war and dealing with post-traumatic stress. this is a form of post-traumatic stress. >> reporter: steps away from destroyed homes, caskets with the dead inside sit under the warm louisiana sun. the state-run cemetery task force has not returned them to their resting place after floodwaters forced them from their gravesites. >> it is heartbreaking. to see that no one is really trying to put them back. >> reporter: ironton is south of new orleans. much of the area is below sea lev...

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