Global warming: Are we doomed? A poll.

[Jehanne]

My question would be, how will humans survive 180 F (82.2 C) during the summer ?

It's going to get that hot eventually. Maybe 200 years from now and that's going to probably push people underground.

I think that's the main problem with global warming.
We'll all die before it has any real world effect on us.

Eventually, most definitely.    But not 200 years from now.    Possibly 200 million years from now, more like one or two billion years from now.  You are being quite extreme in alarmism.   Such exaggeration and shrillness does not lend credibility to actual good science.

Such a rise will not be possible with currently active means of climate change.   We are currently still in a period that is the amongst the coolest the earth has seen in over half a billion years.   Even the most powerful, once in half billion years, temperature increasing events found in geological record can’t get us more than a fraction there.  It requires the combination of gradual, long term on astronomical time scale, increase in solar radiance, and feed back green house effect resulting from ocean boiling off and filling the atmosphere with water vapor.

Rest assured, before summer temperature gets to 82C over significant areas of the global, unstoppable  runaway greenhouse effect resulting from ocean boil off will have been set irresistibly into motion, and the earth will inexorably turn itself into Venus.

You only need 6 hours on a really bad day to kill the majority of lifeforms in a given area, save the extremophiles. One has the mean global temperature predictions from a 560 ppm CO2 concentration, but then again, there's the variance, which is intrinsically much more difficult to model and quantify.