Mr. Fish and an increasing number of sea creatures investigate, then decide how to deal with, a huge mess in the ocean. Includes tips for the reader to help clean up and protect the ocean.

When he has a dream about a future Earth devastated by pollution, Walter begins to understand the importance of taking care of the environment.

"Off a small island, a boy and his grandfather set sail in their beloved fishing boat. They ride the waves, catching wants and wishes and seeing the wonders of the ocean. But soon the boy is sailing the boat himself, drifting further from shore as the waters grow muddied and turbulent. When a storm washes him ashore, he sees home in a new light. He decides to turn the tides of his fortune, cleaning the island's waters and creating a new life with...

Jessie wants her science fair project to make a difference. So when she gets the chance to test a local creek for pollution, she can't wait to get started. But when things start going wrong with her experiment, Jessie and her siblings don't just have an experiment to investigate, they have a mystery to solve!

"While looking for a place to live, Lucky bumps into a certain someone and discovers something even better than a shiny new shell: friendship...Dynamic backmatter provides further details on the environmental crisis and how readers can prevent and reverse ocean pollution."--

"What was supposed to be a blissed-out vacation at a pristine eco-resort has turned into one of the biggest cases of my life. And just as we were getting into it, Bess, George, and I had to return to River Heights. But, it looks like the case has followed us home."--Back cover.

Stella gets a big surprise when her mom plans a trip to visit their family in Mexico! Stella loves marine animals, and she can't wait to see the ocean for the first time, until she arrives and learns that the sea and its life forms are in danger due to pollution. Stella wants to save the ocean, but she knows she can't do it alone. It's going to take a lot of work and help from old and new friends to make a difference, but Stella Díaz never gives...

Obe Devlin spends a lot of his time cleaning up the creek that runs through what little is left of his family's once extensive farmland, and worrying about what the developers are doing nearby, and the pollution it is causing--but one day he finds a strange creature by his creek that eats plastic, and soon the animal he calls Marvin Gardens becomes his personal secret, which he believes needs to be protected from pretty much everybody.

"When chance, or fate, throws two twelve-year-olds together on board a scientific research ship at the edge of the Great Pacific Garbage Patch, it's not all smooth sailing! Jeremy "JB" Barnes is looking forward to spending the summer before seventh grade hanging on the beach. But his mother, a scientist, has called for him to join her aboard a research ship where, instead, he'll spend his summer seasick and bored as he stares out at the endless plastic,...

As a Young Scientist, twelve-year-old Addie studies pollution in the lake where her twin brother recently drowned, while secretly continuing his investigation of the creature he believed lives in the lake's depths.--