I was referring to the books – my primary memories of ASoIF were that the level of violence should mean more desertion and economic collapse back home and unless they just magicked it away there’d nowhere near enough food to survive the promised winter. It’s not like the books didn’t have good parts but I had to consciously suspend disbelief a lot while reading it.

Greenhouses don’t require heating but it’s also a proxy for the questions about urgency: if you knew this was coming, shouldn’t you have people working on every aspect of storage, stretching growing seasons, migrating south, etc.?