I predict that in 350-500 million years, the rock cycle will subduct all we know back into the core of the earth and redistribute elements through volcanism and sedimentation. Also during in this time, there will be a epoc level volcanic event that will take of any global warming problems.
You can take my prediction to the bank!
I recently watched an Indie film called "chasing ice" (google it) that detailed glacial melt off. The film is visually stunning it's well worth admission go see it if you have the the chance. There is no doubt that the earth is getting warmer, although saying exactly why is an inexact science. It's reasonable to think that the Industrial Revolution has added to the atmospheric CO2 loading, however the rate of global change due to mankind's contribution is difficult to quantify.
"On a long enough timeline, the survival rate for everyone drops to zero". Geologic time is difficult for humans to perceive, but the truth is Earth has always been a dynamic and often times, violent place to live.