There are many reasons for why we should protect the Baltic Sea. The most important of these reasons is that the Baltic Sea is an exceptional environment that is home to a unique combination of both saltwater and freshwater species.

The bird species of the Baltic are also exceptional. The Baltic Sea is the nesting place for tens of bird species, and millions of birds migrate through it to reach their northern nesting areas. 

The Baltic Sea is also important for humans. The Baltic Sea is an important fish producer. During the recent years, the practice of breeding fish in artificial pools has grown more common in the Baltic. In addition to professional fishing, the Baltic also provides a popular destination for recreational fishers. The Baltic is also a popular location for other recreational activities. 

The need for protecting the Baltic is urgent. The Baltic Sea is threatened by many problems, all of which are caused by humans. These threats include microplastics, eutrophication, and chemical and oil leaks from industrial activity. Because the Baltic Sea is very relatively shallow, even small amounts of harmful substances can be very dangerous to its ecosystems. 

The nations of the Baltic Sea have made multiple agreements aiming to protect the Baltic Sea. These agreements try to limit the harmful effect of humans on the environment. However, there is still an urgent need to protect the nature of the Baltic Sea more efficiently. 

A large cruise ship travelling through the Finnish archipelago. Cormorants are sitting on the islet in the front. The increase of shipping traffic in the Baltic is one of the threats to the sea's ecosystem.