Who loves a garden loves a greenhouse too.
The greenhouse effect is something you can observe experimentally - and most people have observed the greenhouse effect themselves, in greenhouses. Yes?
Even if we were to stop putting out greenhouse gases right now, we'd still face decades of warming.
You could warm Mars up, over time, with greenhouse gases.
We have built a greenhouse, a human greenhouse, where once there bloomed a sweet and wild garden.
The US really has to get out in front. We are the biggest per person, by a substantial amount, greenhouse emitters, and we give the most foreign aid, not per person but in absolute.