From The Conversation: One of Hurricane Katrina’s most important lessons isn’t about storm preparations – it’s about injustice.

Twenty years after Hurricane Katrina swept through New Orleans, the images still haunt us: entire neighborhoods underwater, families stranded on rooftops and a city brought to its knees.

We study disaster planning at Texas A&M University and look for ways communities can improve storm safety for everyone, particularly low-income and minority neighborhoods.

Katrina made clear what many disaster researchers have long found: Hazards such as hurricanes may be natural, but the death and destruction is largely human-made.