The 1st photo is what the water in Costa Rica is like due to the amount of trash that goes into it. The 2nd photo is after we spent two hours picking up plastic & garbage around the area. We can all do something to help, & I know that we did something. #natgeostudentexpeditions pic.twitter.com/83Sk5BDxeK
https://twitter.com/ThatHannahAlper/status/1013491678374576128