2nd out of 127 teams · McHacks · Jan 2026

Every question you ask an AI uses real water to cool the computers that answer it. This browser add-on catches questions an ordinary search could handle, nudges you to skip the AI, and shows the water you saved as little ice cubes.

Why it won: It reads your question before it ever leaves your computer, and sends nothing anywhere, which matters for a tool that sees everything you type. It also never blocks you; it just shows the cost and lets you decide. The team understood that guilt makes people uninstall things, but a growing stack of ice cubes makes them play along.