So I was sat in the hills of Bandung in Indonesia where the temperature is cooler because of elevation. So I'm thinking. Hmmm.....

Bangkok is hotter than Chiang Mai for the same reason as Jakarta is hotter than Bandung? Because both cities are sinking.

So that is it? the planet is shrinking so the surface is getting lower so the temperature at the surface is rising?

Who needs a tinfoil hat?