Our natural systems are changing. Scientists all over the world are examining these changes and predicting what lies ahead. But our oceans are vast. Collecting enough data on the impacts of climate change on our oceans to intelligently inform our behaviour is a global problem. It is a problem that Professor Gretta Pecl is working hard to solve. Professor Pecl is a specialist in climate change ecology. She is studying what is happening to the species in our oceans as the water warms. To improve the quantity of data being collected, she has enlisted the help of thousands of recreational fishers, SCUBA divers, boaters and naturalists. The 'citizen science' model is called Redmap, or the Range Extension Database and Mapping project.