In this era of big data, anyone can now see how and where the world’s forests are changing thanks to a new mapping project made possible, in part, by the computing resources of the tech giant Google.

The map compiles 100-foot-resolution satellite images of Earth’s land area taken each season, every year between 2000 and 2012, to paint a picture of where trees were lost or gained. Globally, the map shows that 888,000 square miles of forest were lost between 2000 and 2012. In the same period, 309,000 square miles were gained.