It’s well known that global sea levels are rising, but now NASA is showing by just how much.

The National Aeronautics and Space Administration shared an animation that shows how far sea levels have risen between 1993 and 2022.

Over those three decades, sea levels have risen about 3.5 inches.

That may not seem like a lot, but the animation should be used as a visual metaphor. NASA said it’s designed to look like a submerged porthole of a boat as water can be seen lapping outside the window.