Haikus are easy
But sometimes they don’t make sense
Refrigerator
(Seen on a t-shirt)
Again, presenting myself as a moderate…
So while I don’t see global extinction happening any time soon, I also don’t see it as an extremest prediction for the coming millenium. Maybe a little right of center on the bell curve of probabilities, but well within projected outcomes.
And expecting some future miracle science to solve the problem isn’t a rational approach. We still haven’t cured cancer. Or even the more mundane common cold.
That reminds me, I forgot about the mega-tsunami that will wipe out the eastern coast of the U.S. when the cliffs in Africa let go after a massive earthquake. 
Okay, maybe we won’t all get wiped out next week. Maybe I’m being a tad doom-and-gloomy. But we can actually predict with 100% certainty that all human life will be wiped out on earth one day, if we’re still here for the sun going nova. Or winking out. Whichever it is that our sun is scheduled to do in the distant future.
But not your children’s children’s children, because . . . 
Well, yeah. I don’t dispute that if our species is still around in a few billion years when the sun becomes a red giant, all human life on earth is going to be toast.
But that’s completely irrelevant to the alarmist prediction of near- to mid-term human extinction in the OP, and completely independent of how the US and China decide to react to the IPCC climate change report. There is no environmental policy of any kind that we can undertake that will stop the sun from becoming a red giant a few billion years from now.
This doesn’t justify us in exaggerating the probable consequences of comparatively imminent and minor environmental hazards, such as anthropogenic climate change.
According to my astronomy professor, the Sun’s energy output increases as it ages. This will tip the Earth into “thermal runaway”, like Venus, long before it becomes a red giant. The end is closer than you think!
If our species is still around then, we will have colonized space and won’t need Earth any more, except for sentimental reasons. We might even have the technology, by then, to move Earth out to a further orbit.
There we go!
Saved by magic tech!
Nothing to worry about. Disregard this thread.
Maybe. Maybe not. I kind of wish people would stop presenting their speculative estimates of the ultimate fate of the human species as factual assertions.
Has anyone ever told you that you’re kind of humourless?
Step #1)250 years of free scientific method gets us to the moon.
Step #2)1 billion+ years of further scientific research.
Step #3)Profit!
No, because here in America we spell it without a “u”.
Kevin Bacon…all is well all is well
If the dire predictions are true, and the non believers get their way ,we all experience an extremely ugly future. If those that want us to clean up get their way, you capitalists get to breathe cleaner air and live a better life. You may thank us for worrying about your future and that of your children. We can thank you for agreeing to allow our air to get polluted for money.
Yes, but do you pronounce it without a “u?”
Uh… yes? 
I’ve never heard it pronounced without a u.