Category Archives: Science

How to power the world with Wind, Water, and Sun

…a new study just published in the journal Energy Policy states that the world can provide for all of its energy needs, including electric power, transportation, heating/cooling, etc using only wind, water, and solar (WWS) energy by the year 2030.
By water the study authors, Mark Z. Jacobson (pictured) Mark A. Delucch, mostly mean hydroelectric power, which would involve building more dams, with all their environmental problems. Still, it’s an interesting study demonstrating that true renewable energy could power the world: no coal, no oil, no nuclear.

-jsq

The plummeting cost of solar electricity

Computers are so small and cheap these days that the phone in your pocket has more computing power than the biggest corporate computers of a few decades ago. A similar phenomenon is driving down the cost of solar electricity. Ramez Naam writes in ScientificAmerican, Smaller, cheaper, faster: Does Moore’s law apply to solar cells? Here’s a summary in one diagram:

Solar may not be the most affordable power source today, but wait a few years and it will be. Or get on with organizing the political and corporate structures to be ready. In sunny south Georgia, solar is our best bet.

-jsq

South Georgia already in drought: parameters for industry?

Droughts and floods: maybe we need to manage water better, including managing industrial use of water.

According to the AP, Ga. foresters brace for busy wildfire season:

A cold, wet winter has left northern parts of the state in decent shape, but in southern Georgia river flows and soil moisture are both at some of the lowest points that would be expected in a century, said David Stooksbury, Georgia’s state climatologist at the University of Georgia.
The nearterm effects:
“We have a good fuel load with plenty of dry vegetation, the soil is dry and there’s a low relative humidity and there’s wind,” Stooksbury said. “That is the simple recipe for a trash fire to get out of control very quickly and become a wildfire.”
Yes, Sunday Georgia Forestry cut off burn permits in Lowndes County because some fires had gotten out of control.

The long term problem? Continue reading →

Biomass or carbon trading or something else?

To get an idea of why big timber growers might find biomass attractive, here’s an article by Terry Dickson in the Florida Times-Union from 20 June 2005, State’s forestry industry in an ‘alarming decline’
People have long debated whether there is a sound if a tree falls in a forest but nobody is there to hear it.

The fall of revenue from Georgia’s forestry industry, however, has attracted a lot of attention — but $10 billion is hard to ignore.

Continue reading →

Beliefs are good, but facts are better –John S. Quarterman @ VLCIA, 15 March 2011

First I praised the completion of the Wiregrass Solar LLC plant in Valdosta. Then I complimented Brad Lofton on finding his new job and hoped he’d be happy in Myrtle Beach. Then I praised the VDT for its editorial recommending using this opportunity to consult the councils of the various municipalities and the County Commission, and in particular that one way to produce unity in the community as G. Norman Bennett had previously advocated, would be to find out what the community wants VLCIA to do.
I understand the point about beliefs. But it’s not all about just the beliefs of just the people on the board. It’s also about things like is there enough water, and do we want businesses that soak up a lot of water, like Ben Copeland said at the Lake Park Chamber of Commerce. Beliefs are good, but facts are better. Thank you.


John S. Quarterman at the
regular monthly meeting, Valdosta-Lowndes County Industrial Authority (VLCIA)
Norman Bennett, Roy Copeland, Tom Call, Mary Gooding, Jerry Jennett chairman,
J. Stephen Gupton attorney, Brad Lofton Executive Director, Allan Ricketts Program Manager,
15 March 2011.
Video by David Rodock for LAKE, the Lowndes Area Knowledge Exchange.

-jsq

Sunshot: solar cheaper than coal in six years

Solar is expensive at the moment, but that could change rapidly. David Biello writes in Scientific American yesterday:
The U.S. Department of Energy (DoE) aims to change that by bringing down the cost of solar electricity via a new program dubbed “SunShot,” an homage to President John Kennedy’s “moon shot” pledge in 1961.

“If you can get solar electricity down at [$1 per watt], and it scales without subsidies, gosh, I think that’s pretty good for the climate,” notes Arun Majumdar, director of the Advanced Research Projects Agency–Energy (ARPA–e), the DoE’s high-risk research effort. “With SunShot, the goal is to reduce the cost of solar to [$1 per watt] in the next six years.”

Hm, so maybe Ray Kurzweil is right.

DoE Secretary Chu even thinks we could win something else:

“Just because we lost the lead doesn’t mean we can’t get it back,” Chu said. “We still have the opportunity to lead the world in clean energy…but time is running out.”
Meanwhile, we could shift fossil fuel subsidies over to solar and get on with it.

-jsq

“we would appreciate it if our position was no longer misrepresented” –Georgia Sierra Club

Here is a letter that Leigh Touchton forwarded, noting, “Ms. Colleen Kiernan gave me her permission to share it publicly.” -jsq
March 9, 2011

Brad Lofton
Executive Director
Valdosta Lowndes County Industrial Authority
2110 North Patterson Street
Valdosta, GA 31602

RE: Sierra Club position on the Wiregrass Energy facility

Dear Mr. Lofton:

Congratulations on the groundbreaking of your solar facility last month. The Georgia Chapter of the Sierra Club is very pleased and excited to see those types of clean, renewable projects coming online all across our state, after years of Georgia Power claiming that solar wouldn’t work in our state.

However, I am writing to you primarily on a different subject as it has come to our attention that you continue to claim
Continue reading →

The politics of climate change denial

Why do some people deny the overwhelming science of climate change in a time when the evidence and analysis is so thorough and so conclusive that no reputable scientific organization in the world doubts any longer that humans are changing the climate of the whole planet for the worse: because it threatens their political and economic beliefs. Naomi Klein: Why Climate Change Is So Threatening to Right-Wing Ideologues:
And the reason is that climate change is now seen as an identity issue on the right. People are defining themselves, like they’re against abortion, they don’t believe in climate change. It’s part of who they are.
It’s like denying the earth goes around the sun. Why would they identify with such a silly thing? Because of what actually dealing with climate change would mean: Continue reading →

Is Dixie Alley spreading?

So today we have a report of a tornado at Poulan (west of Tifton), tornados in Alabama and west, and right now the storm is sitting on top of Tallahassee in a circular pattern:

More maps of Dixie Alley from Is Dixie Alley an extension of Tornado Alley? by P. Grady Dixon, et al.: Continue reading →

A new tornado alley?

Just a couple of weeks ago a local elected official told me “we didn’t live in tornado alley”. Well, after today’s storm in which apparently there were some tornados to the west before it got here, the Washington Post remarks on Mardi Gras storm risk & the new tornado alley:
Despite the lack of historic twister activity around New Orleans, tornado climatology indicates they become much more common due north into south central Mississippi and expanding northeast and northwest from northern Alabama across northern Louisiana, southwest Tennessee and into eastern Arkansas.
As you can see by the map they posted from a recent study, one pocket of this new tornado alley, nicknamed Dixie Alley, is in south Georgia.

The article goes on to quote a different study that said:

…Dixie Alley has the highest frequency of long-track F3 to F5 tornadoes, making it the most active region in the United States. … Based on this analysis, colloquial tornado alley fails to represent the areas of highest activity in the United States, indicating that a more comprehensive analysis of additional tornado alleys in the United States by the NWS may be needed in the future.
So yes, we do live in the new tornado alley.

Sure would be nice for people around here to have NOAA Weather Radios.

-jsq

PS: Nothing but wind and rain on my hill. This time.