Thanks. Nothing new to me here, but useful.
Deniers, what do you have to say?
I used to be a denier a long time ago. My main talking points were.
1) Humans emit a tiny fraction of CO2
2) Melting sea ice will decrease sea levels, not increase them because ice is less dense than cold water.
3) Increasing CO2 levels would be good for plants and forests
The refutations to these are easy
1) It is true that humans emit a tiny fraction of CO2 compared to natural factors, but that tiny fraction throws the entire carbon cycle of balance. It will take the earth millions of years to reach a new carbon equilibrium with these emissions.
2) The issue is melting ice on land, like glaciers which will add volume to the oceans, not icebergs in the sea.
3) Deforestation is a thing. Humans keep destroying vast areas of forest cover every year. Even without it, like point 1, it will take millions of years to reach a new equilibrium.
The only thing I do not agree with climate alarmists is the claim of runaway global warming- like Venus. That simply won’t happen in my opinion. But even one or two degrees warming can be devastating to life as we know it, as we can clearly see with increasing extreme weather phenomena around the globe each year.