domingo, 9 de agosto de 2009

Coal, Climate and the Last Energy Crisis
By Richard Heinberg

Coal fuels about fifty percent of US electricity production and provides a quarter of the country's total energy. China and India's ferocious economic growth is based on coal-generated electricity.

Coal currently looks like a solution to many of our fast-growing energy problems. However, while coal advocates are urging full steam ahead, increasing reliance on the dirtiest of all fossil fuels has crucial implications for climate science, energy policy, the world economy, and geopolitics.

Drawbacks to a coal-based energy strategy include: Scarcity--new studies prove that the peak of usable coal production may actually be less than two decades away. Cost--the quality of produced coal is declining, while the expense of transport is rising, leading to spiraling costs and potential shortages. Climate impacts--our ability to deal with the historic challenge of climate change may hinge on reducing our coal consumption in future years.

Blackout goes to the heart of the tough energy questions that will dominate every sphere of public policy throughout the first half of this century, and it is a must-read for planners, educators, and anyone concerned about energy consumption, peak oil, and climate change.