deviceMeltedIce

How much Arctic sea ice is lost because of the electricity you use — from a light bulb to a billion AI prompts.

Live at https://www.mgravey.com/deviceMeltedIce/

How it works

electricity (kWh) × grid carbon intensity (gCO₂/kWh) × 3 m² of September Arctic sea ice per tonne of CO₂ (Notz & Stroeve, 2016). Data-centre equipment (AI prompts, GPU servers) also gets a PUE overhead of 1.2. The full methodology and sources are on the page.

Files

• index.html, style.css, script.js — the static site (no build step, no dependencies)
• data/devices.js — device list and the example shortcuts
• data/intensity.js — carbon intensity per country, generated from Ember (CC-BY-4.0)
• tools/update_intensity.py — regenerates data/intensity.js
• llms.txt — method, data, devices and URL parameters for AI assistants (llmstxt.org); update it when devices or the data change

Updating the grid data

python3 tools/update_intensity.py

Run it once a year after Ember publishes new data.