system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the middle of Great Britain was transposed directly west, it would lie in freezing cold places such as northern Quebec. Cities in this region in Canada have average winter temperatures of around -25°C, yet winter in the UK is relatively mild (average 6°C) and rarely even snows. Why?
gpt
Thermohaline circulation.  Heat gets pumped around the oceans.  In winter the West coast of Scotland is 2^^^o warmer than the East coast because the Gulf Stream brings so much warm water across the Atlantic.