There are acres and acres of inflatable temporary structures at the UN climate change conference in Bonn, Germany.

And even though they won't let me in to show you what's inside, I'll show you what I found on the outside:

Inside the fake complex, the delegates are kept toasty and warm while they find new ways to tax fossil fuels in an effort to fight climate change — but on the outside, it's cold, and there's a constant, annoying hum everywhere on the grounds.

I investigated what was making the insufferable whirring noise and you won't believe what I found when I followed some cords all the way back to the culprit!