Human activities are impacting the ocean environment throughout the globe. As a result, scientists are now focusing a large part of their research on understanding what activities are having the greatest effect, and what kinds of effects they are having on biological (e.g. animals) and environmental (e.g. climate) systems. Some of the activities that we know are having large effects on marine animals are fishing, pollution, oil extraction, coastal development, climate change, ocean acidification, shipping, and invasive species. In this section you will learn a little more about each of these impacts, and the steps used to create the Human Impacts map displayed in the Ocean Tracks interface.