Hum,
Yes and no...
OK, it should be widely accepted that humans have raised the global temperature (0.2 degrees this century), this is a fact. The ice sheets are melting and the sea levels are rising...
But, it should be noted that there are large scale cyclic patterns that may confuse the outcome..
It's been about 10,000 years since the last iceage, we should be due for the next one at any minute: hum, perhaps in next one hundred years or so...
We should be painfully aware, that if (when) it happens, that upto 99% of all northern living creatures will perish in the frozen wastes, nothing will escape the big freeze that may hit us...Anywhere...
This fact taken with the latest satellite observations show that we are living at one of the warmest periods of earths history, and that a runaway greenhouse scenario may raise the temperature even higher. But eventually this will be `buffered` by the planet and that eventually the world will get cooler , a lot cooler, dude...
:-?