I keep hearing and reading people mention carbon sequestration, but I have yet to hear about a working power-plant that sequesters its carbon and is net energy positive. I have also not heard a viable plan to create said power-plant. It is possible, of course, that one exists and I just haven't heard of it, but I doubt it. If anyone has some intel for me, I would appreciate it.
Until then, any mention of carbon sequestration as a solution will be filed along with fusion reactors under "Check back in a couple of decades".

http://usinfo.state.gov/gi/Archive/2004/Dec/15-595073.html

Weyburn, Saskatchewan, whose CO2 comes from:

http://www.dakotagas.com/

which is a gasification plant, but in principle no difference from a gasification power plant like

http://www.netl.doe.gov/technologies/coalpower/cctc/summaries/wabsh/waba...

So the technology exists. There are about 20 operational IGCC power plants in the world. What remains is to hook the pieces up.

It might be 20+ years from universal use, but it's 10 years or less from practical wide scale deployment.

Fusion by contrast is 50 years out. Even the advocates think it is 50 years out.