[sjwalter]

For every acre of cropland that becomes too hot to grow in, shouldn't there be more cropland that becomes arable? Why does climate change literally only make things worse everywhere, and better nowhere? That's what it seems like when to talking to climate change alarmists. There can be no admission of even something so simple as uncertainty over any of the bold claims, much less any kind of identification of positives of climate change.

I mean, what if you're wrong? What if the planet gets 2C hotter and... everything's mostly fine? What if the planet gets cooler? Or what if we get the ideal (apparently) total climate stasis?

How likely are those scenarios?

[politician]

Due to the laws of thermodynamics, CO2 and Methane gases diffuse evenly throughout the atmosphere creating a blanket over the entire globe. As we add more gas to the atmosphere, the blanket gets more dense.

In the summer, you probably have a light comforter on your bed while in the winter you probably switch to a heavier comforter. While you're asleep your bed warms up under the comforter and it doesn't cool down until you get out of bed. In the same way, the CO2 and Methane gases are like a comforter that is wrapped around the planet. A low density of gases is like your summer comforter and a high density of gases is like your heavy winter comforter. Unfortunately, unlike your bed, it's not easy to switch from a heavy volume of gases to a light volume of gases -- if it were, then we could terraform Venus. Venus is covered in a CO2 and Methane gas atmosphere so dense that we could float a city on it and the surface is 900degC.