ELI5: Explain Like I'm 5

Estuarine acidification

Estuaries are places where rivers meet the sea. They are like a big mixing bowl of freshwater from the river and salty seawater. They are essential ecosystems as they are home to many different types of plants, fish, and animals.

Now, imagine that the water in the estuary is like lemonade that has too much lemon juice in it. This is called acidification. When there is too much carbon dioxide (CO2) in the air, it can get absorbed by the water in the estuary, making it more acidic.

This extra acidity can be harmful to the creatures living in the estuary. It can make it hard for clams and oysters to make their shells, and it can hurt the fish’s ability to smell and hear. Some animals may even have trouble reproducing.

This is why scientists are very concerned about estuarine acidification. They want to study it and find ways to stop it from getting worse. One way they are doing this is by reducing the amount of CO2 that goes into the air by things like using renewable energy instead of burning fossil fuels. Another way is to help the estuaries by restoring the habitats for the different plants and animals that live there.

So, in short, estuarine acidification is like when too much lemon juice is added to the lemonade, and it can hurt the creatures that live in the estuary. Scientists are working hard to figure out how to prevent it from happening.