We're saved!: Guy hacks a video game to suggest that emitting trace amounts of invisible CO2 will make the skies go dark

Climate change strikes Minecraft | Environment | guardian.co.uk

So, at the Stockholm Green Hackathon last weekend, I hacked up a mod for Minecraft that adds carbon emissions, but instead of just putting in some random numbers for it, I used AMEEconnect to get real scientific data from the IPCC in there.

When you burn some wood in a furnace, the mod calls out to AMEEconnect to do a calculation, and adds the result to a tracker in-game. As the carbon ticks up, the environment gets more and more polluted as the skies go dark and the clouds come down. OK, not entirely accurate, but an effective visual indicator!