What's the environmental cost?

Fair question — and one that deserves an honest answer, not "it's nothing" and not "you're killing the planet by saying thanks to a chatbot." The truth sits in the middle, and it's worth actually understanding.

💧 One query is genuinely tiny

A single question to a chatbot uses a small amount of energy — Google measured its median Gemini text prompt at about 0.24 watt-hours (around nine seconds of television) and about five drops of water for cooling, and OpenAI's boss has quoted a similar figure for ChatGPT. You may have heard "ten times a web search" — that came from an early 2023 estimate, and the newer measurements have landed much lower. (The best numbers come mostly from the companies themselves and don't count training, so treat any precise figure with a pinch of salt.)

📈 …but scale and training are the real story

Where it adds up is volume and training. Billions of queries a day — ChatGPT alone was fielding around 2.5 billion prompts daily by mid-2025 — plus the enormous one-off cost of training the models in the first place, plus a global building boom in data centres. That's where the real footprint lives — not in your individual chat. Framing it as "my one question" quietly misses the actual issue.

⚖️ Keeping it in proportion

Worth holding two things at once: it's not nothing, and it's also not the thing most worth losing sleep over in your day. A short drive, a load of washing, a single steak — each dwarfs a whole day of chatting to an AI. If you want to be a thoughtful user, the bigger levers in your life are almost certainly elsewhere. But "it has a cost" is true, and worth not pretending away.

🌱 What you can actually do

No hand-wringing required. Don't generate slop for the sake of it — fewer pointless regenerations, less "make me fifty versions of this." Use it for things that genuinely save you something real. And remember the providers move the big numbers, not you — greener data centres, more efficient models — so it's fair to expect that of them, and to lean toward the ones who take it seriously.