Showing posts with label Carbon dioxide. Show all posts
Showing posts with label Carbon dioxide. Show all posts

Thursday, October 16, 2014

Going Head To Head With Carbon

Carbon dioxide
Carbon dioxide (Photo credit: Wikipedia)
ball-and-stick model of CO2: carbon dioxide
ball-and-stick model of CO2: carbon dioxide (Photo credit: Wikipedia)
Negatives emissions feel counter intuitive. Why not capture the carbon right where it is emitted? Would that not be cheaper?

Can Sucking CO2 Out of the Atmosphere Really Work?
air capture, which means, essentially, scrubbing it from the sky. ..... As emissions have accelerated—they’re now rising at 2 percent per year, twice as rapidly as they did in the last three decades of the 20th century—scientists have begun to recognize the urgency of achieving so-called “negative emissions.” ..... “Once capturing carbon from the air is profitable, people acting in their own self-interest will make it happen” ...... In the winter of 2008 Eisenberger sequestered himself in a quiet house with big glass windows overlooking the ocean in Mendocino County, California. There he studied existing literature on capturing carbon and made a key decision. ...... a 40-foot-high tower of fans, steel, and silver tubes ..“It’s doing exactly what the tree is doing,” says Eisenberger. But then he corrects himself. “Well, actually, it’s doing it a lot better.” ....... “There’s really little chance that you could capture CO2 from ambient air more cheaply than from a coal plant, where the flue gas is 300 times more concentrated” ...... deriving fuels from biomass—which removes CO2 from the atmosphere as it grows. As that feedstock is fermented in a reactor to create ethanol, it produces a stream of pure carbon dioxide that can be captured and stored underground ...... scientific advances made in air capture will eventually be used primarily on coal and gas power plants.

Wednesday, January 09, 2013

Sandy Was Global Warming


Wild fires in Greece a few years ago was global warming acting out. Sandy hitting NYC last year was global warming making itself felt. Global warming is a costly proposition. It is cheaper to keep the earth in a good shape.

Dear Mr. President: Time to Deal with Climate Change
Whether you can develop a practical and sustainable strategy to address climate change—specifically, to begin lowering carbon dioxide emissions—will define the success of your new term as president. ..... the potential for global warming over the next decades threatens consequences so dire that they could overwhelm any progress you make toward other long-term economic, social, and political goals. .... will require innovative new technologies and overhauls of the world’s energy, agricultural, and transportation infrastructure. .... The $90 billion in your 2009 stimulus bill for energy projects and research breathed new life into the search for cleaner sources of energy ... transforming our energy infrastructure would take decades .... much of the energy spending in the stimulus bill, suggested one, resembled “pork-barrel politics” to satisfy the immediate need for jobs ..... reduce carbon dioxide emissions and begin stabilizing our climate. ..... the real reason to transform our energy system is to avoid the most catastrophic effects of global warming. ...... we can no longer wait without risking dramatic upheavals in global security and the health and welfare of hundreds of millions of the world’s inhabitants. ..... global emissions of carbon dioxide from fossil-fuel combustion reached a record 31.6 metric gigatons in 2011. .... It is quite possible that if this is not done over the next four years, it will be too late.
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