Informative overview of different approaches to 'clean coal' energy, such as carbon capture and sequestration technology. This short video segment explains the facts clearly and intelligently. However, I am concerned about the choice of sources for this piece, which seem to favor progressive viewpoints -- no representative from the coal industry is represented in this report, and the footage is largely from Greenpeace. That said, I found this story helpful in getting a better understanding of some of the challenges and opportunities we face in addressing this important issue.

The story is good, but much too short to cover the complexities, urgency, and alternatives available. Central solar thermal steam plants, distributed photo-voltaic solar, wind, geothermal, and conservation are all essentially carbon free and need subsidies now that must be taken away from carbon emitting energy sources. The effects of injecting carbon dioxide and carbonic acid into the ground and water table may present an unknown negative effect.

This is a resonably good story that points the difficulty of resonable discusssion. Two of the three "experts" seem unwilling to consider this alternative. This in spite of the fact that the alternatives they favor are equally untried and at least as costly.

Some of the shots of power plants are deceptive, because most of the "smoke" is actually water vapor from cooling towers. It is unbalanced in that the 3 viewpoints given point out the downsides of coal. However, I must admit there are not many people they could interview for the opposing view, who could supply credible evidence. The coal ad is the only vestige of that viewpoint. I think the prediction about how long it would take to develop carbon sequestration is shaky, and could have been rebutted.

Global warming is the premier problem for the world today, transcending our own national politics in importance. I am particularly frustrated. I retired from an engineering career over a decade ago and am by now hopelessly behind the times as to the current state of technology. I am loathe, however to accept an update from a Coal industry ad. Sequestering CO2, however that might be accomplished doesn’t eliminate it but merely “stores” it. How is this a solution?