Dive Against Debris is a citizen science initiative through which divers collect data to be used by marine researchers and policymakers to contribute to ocean conservation efforts. To participate, divers are encouraged to collect marine debris during their dives and log information about the debris into a global database. On the page linked above, interested divers can learn how to participate by...

The Marine Debris Tracker is "an open-data citizen science tool ... fight[ing] plastic and other types of pollution." Using technology and human power, the project seeks to remedy pollution by tracking inland and marine debris. So far, thousands of citizen scientists have contributed, registering over 2 million debris pieces worldwide. Interested readers are welcome to join in the work. Readers...