[zahlman]

> I'd guess for questions asking X or Y they mean X, lean X, no preference, lean Y, and Y

Yes; https://en.wikipedia.org/wiki/Likert_scale

> but in what order? ... One such chart is simply titled "Global Warming". What does it mean to answer "2" to that?

These things become clear by cross-referencing with the actual survey (https://docs.google.com/forms/d/e/1FAIpQLScZLCk8_L64hen93A2g...).