Coastal development hazards are things that can harm people and the environment when people build things near the ocean or other bodies of water.
When we build near the coast, we can cause problems like erosion (when the land slowly disappears), flooding, and pollution. Without proper planning, building on the coast can cause damage to habitats for animals and plants, as well as expose people to natural disasters like hurricanes.
Sometimes people want to build houses, hotels, or stores near the beach, but they forget about the dangers. Coastal flooding can happen when a big storm, like a hurricane, comes through and the water level rises high, which can damage buildings and homes. Erosion can take away the beach and make it harder to walk or play on the sand. Also, when people build things near the coast, the water can become polluted with garbage or chemicals from buildings, boats, and cars.
So, it's important to be careful when building near the coast to protect the environment and people who live in those areas. That's why people need to plan carefully and often have rules to follow when building near the coast, such as building structures further away from beach areas and protecting sea turtle nesting sites.