Category Archives: Sustainable

NY Times: Hydraulic Fracturing: “Cleaner than Coal”

Helicopter Cruising Greenland Ice Sheet

Helicopter Cruising Greenland Ice Sheet

“To Make Fracturing Safer,” editorial, in May 11, 2012, begins “Gas … is cleaner than coal” and concludes “Oil and and gas drilling will always be a risky business; the administration cannot let pass this opportunity to make it safer.”

Clean and Green within 18 is the opportunity the Administration should not let pass. We should – MUST – shift to 100% sustainable energy in 18 years! Solar, wind and other sustainable energy systems do not require fuel and day-to-day operations do not create waste. Thus these “negafuelwatt” systems are clean; not just “cleaner than coal.” And they are also cleaner than oil, gas, and nuclear power.

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Nuclear Fusion in 10 or 20 Years

Thomas Friedman is right in “The Next Really Cool Thing” in The New York Times, March 15, 2009, when he concludes:

At the pace we’re going with the technologies we have, without some game-changers, climate change is going to have its way with us. Yes, we’ll still need coal for some time. But let’s make sure that we aren’t just chasing the fantasy that we can “clean up” coal, when our real future depends on birthing new technologies that can replace it.

Note that he pointed out ‘the fantasy that we can “clean up” coal.

Friedman also said:

“I don’t know if they can pull this off; some scientists are skeptical. Laboratory-scale nuclear fusion and energy gain is really hard…. we need to keep working on all forms of solar, geothermal and wind power. They work. And the more they get deployed, the more their costs will go down.”

Fusion may be the game changer. “Energy Gain” means we get more energy out than we put in. The prototype will cost $10 Billion – enough for 5 GW of wind capacity, and 1.53 GW of PV Solar. And fusion is at least 10 years away, maybe 20, maybe 50. We know how to build wind and solar. (On the other hand it takes 10 years to build a nuclear fission reactor.)

But pushing carbon below 350 ppm is a problem that can’t wait 10 years.  According to the World Watch Institute’s Vital Signs, 2007-2008, the 6.5 billion humans on the earth are using the natural resources of 1.25 earths.  This can’t go on.