https://en.wikipedia.org/wiki/Geologic_temperature_record#/m...
As you can see, we are indeed coming out of one of the coldest periods ever in Earth's history.
Humans didn't exist. I suspect most current plant/animal species are "devolved" by such swings.
If you discount this of course we aren't effecting anything unprecedented. We were once a ball of magma. But, as has been pointed out here, rate and cause of change is incredibly important. A swing set and an explosion will both launch you into the air.
No, the chart does not say that. The 2050 and 2100 dots are projections from the IPOC RCP8.5 “high emissions” scenario. Also, absolutely nothing on that says we’re going to +25c. That part of the chart (that goes to 25) is in F, and it still doesn’t say we’re going to 25f either.
Lots of people wonder why we have so many climate deniers. A lot of the reason is because of guys like this ^ on the opposite end of the spectrum, spewing their fears into a hyperbolic, warped reality. What we need more of is a balanced, realistic, objective view. That will allow us to get to work on a solution.
The first apes evolved about 20 million years ago, when the world was much hotter. I suspect we can survive those conditions again.
And regardless of climate change, most current plant/animal species will go extinct (or already have) due to habitat destruction and mass exploitation. As a cause of mass extinction, that's a much bigger problem than climate change.