Tag Archives: Weather

Arctic sea ice melting faster than expected —WMO

A major source of the water for the sea level rise already affecting Savannah and Jacksonville is melting Arctic Ocean sea ice. WMO Press Release No. 966: 2012: Record Arctic Sea Ice Melt, Multiple Extremes and High Temperatures,

“Naturally occurring climate variability due to phenomena such as El Niño and La Niña impact on temperatures and precipitation on a seasonal to annual scale. But they do not alter the underlying long-term trend of rising temperatures due to climate change as a result of human activities,” said WMO Secretary-General Michel Jarraud.

“The extent of Arctic sea ice reached a new record low. The alarming rate of its melt this year highlighted the far-reaching changes taking place on Earth’s oceans and biosphere. Climate change is taking place before our eyes and will continue to do so as a result of the concentrations of greenhouse gases in the atmosphere, which have risen constantly and again reached new records,” added Mr Jarraud.

30 years of Arctic sea ice 15 September 1982 vs 16 September 2012

The Arctic reached its lowest annual sea ice extent since the start of satellite records on 16 September at 3.41 million square kilometers. This was 18% less than the previous record low of 18 September, 2007. The 2012 minimum extent was 49 percent or nearly 3.3 million square kilometers (nearly the size of India) below the 1979—2000 average minimum. Some 11.83 million square kilometers of Arctic ice melted between March and September 2012.

WMO noted other effects of climate change outside the arctic, including:

Continue reading →

Savannah and Jacksonville most vulnerable to rising sea level

Savannah and Jacksonville are among the east coast cities most vulnerable to rising sea levels due to climate change, a study finds. Savannah, Georgia’s main seaport, with storm surges, hurricanes, and waves on top: what will that look like?

Suzanne Goldenberg wrote for the Guardian today, US coastal cities in danger as sea levels rise faster than expected, study warns: Satellite measurements show flooding from storms like Sandy will put low-lying population centres at risk sooner than projected,

A study published last March by Climate Central found sea-level rise due to global warming had already doubled the risk of extreme flood events — so-called once in a century floods — for dozens of locations up and down the Atlantic and Pacific coasts.

It singled out the California cities of Los Angeles and San Diego on the Pacific coast and Jacksonville, Florida, and Savannah, Georgia, on the Atlantic, as the most vulnerable to historic flooding due to sea-level rise.

Sandy, which produced a 9ft storm surge at Battery Park in New York City, produced one example of the dangerous combination of storm surges and rising sea level. In New York, each additional foot of water puts up to 100,000 additional people at risk, according to a map published with the study.

That study projected 6 inches rise at Fort Pulaski by 2030 (minimum 3 inches) and 13 inches by 2050 (maximum 24 inches). But projections have gotten worse since then:

Sea level changes measured and projected The latest research, published on Wednesday in Environmental Research Letters, found global sea-levels rising at a rate of 3.2mm a year, compared to the best estimates by the IPCC of 2mm a year, or 60% faster.

So that would be more like 9 inches by 2030 and 20 inches by 2050.

Add to a higher base sea level bigger storms like Hurricane Sandy, and Savannah and Jacksonville have a problem. Sure, Savannah is Continue reading →

Southern Company: let’s do the renewable energy study for Georgia

Mark Z. Jacobson's study shows offshore wind is plentiful from Virginia to Maine Let's do the study for Georgia! Southern Company brags about its private R&D:

Research & Development (since the 1960s)

  • Awarded more than $1.3 billion to conduct more than $3.8 billion of research and development.
  • Qualified for $412 million of investment tax credits for a 21st century coal plant being built in Mississippi.

OK, SO, let's see you do the study to show what we can really do with conservation, efficiency, wind, sun, and less natural gas than we have now. Sure, in the Georgia Bight we do have to contend with hurricanes. But a "great, big company" like SO should be able to focus its vaunted private R&D on that problem and solve it.

Maybe SO doesn't want to do that because the result might show there is no need for any coal plants, nor new natural gas plants, nor any nuclear plants, which would mean Georgia Power would have to give up its nuclear-funding rate-hike stealth tax and SO would have to give up its $8.3 billion loan guarantee. Hey, we might even need to change the 1973 Georgia Electric Territorial Act, and that might damage Georgia Power's guaranteed profit! Nevermind that Georgia Power and SO might make more profit if they got out in front on solar and wind power and a smart grid.

If SO won't do it, how about we elect some Public Service Commissioners and legislators who will? For jobs, energy independence, and profit, oh, and clean air and plenty of water!

-jsq

All U.S. east coast electricity could come from offshore wind 3 seasons out of 4

Why build nukes when wind can provide 3/4 of our power? While Southern Company claims to be “a company that is engaged in offering solutions, not just rhetoric”, yet does nothing about wind off the Georgia coast, researchers in far California have demonstrated we can get 3/4 of all needed east coast electricity from offshore wind.

Bjorn Carey wrote for Stanford Report 14 September 2012, Offshore wind energy could power entire U.S. East Coast, Stanford scientists say

A new analysis by Stanford researchers reveals that there is enough offshore wind along the U.S. East Coast to meet the electricity demands of at least one-third of the country.

The scientists paid special attention to the Maine-to-Virginia corridor; the historical lack of strong hurricanes in the region makes it a favorable site for offshore wind turbines. They found that turbines placed there could satisfy the peak-time power needs of these states for three seasons of the year (summer is the exception).

“We knew there was a lot of wind out there, but this is the first actual quantification of the total resource and the time of day that the resource peaks,” said Mark Z. Jacobson, a professor of civil and environmental engineering at Stanford who directed the research. “This provides practical information to wind farm developers about the best areas to place turbines.”

Mark Z. Jacobson already worked out a framework for powering the entire world from wind, water, and sun alone. The late John Blackburn, Ph.D., showed us how to power North Carolina with sun, wind, and hydro, plus less natural gas than NC uses now. Now Jacobson is working out the details of implementation.

-jsq

PS: Owed to Seth Gunning.

New research shows Natural Gas far more dangerous for climate stability —Seth Gunning

Received yesterday on U.S. CO2 emissions lowest in 20 years: that's good and bad: natural gas is methane, after all. -jsq

Yet another comprehensive article. I might also add that one of the major down-falls (if not the most significant) of large-scale conversions to natural gas is the resources lifecycle methane emissions.

As your readers likely know, Methane is about twenty times as 'potent' a greenhouse gas as Carbon Dioxide. That is to say, it is far more efficient at trapping heat then Co2. So, less methane has a far greater impact on climate disruption then more Co2.

Natural Gas, from the point of combustion, releases about half the amount of Co2 released from burning coal, and about 30% of what's released in burning oil. To keep the benefits of reduced Co2 levels when switching from coal to natural gas, natural gas wells and transport lines must leak less then 2% of methane into the atmosphere. Recent research from Cornell is showing that Fracking wells are regularly releasing more then 4%, and often as much as 8% —far exceeding the 2% threshold— and thus making Natural Gas a far more dangerous resource for climate stability.

Tom Zeller Jr. wrote for the NYTimes 11 April 2011, Studies Say Natural Gas Has Its Own Problems

-Seth Gunning

-jsq

U.S. CO2 emissions lowest in 20 years: that’s good and bad

The good news: because utilities such as Southern Company are switching away from coal U.S. emissions of CO2 are the lowest they’ve been in 20 years. The bad news: they’re switching to natural gas, which not only still emits carbon dioxide, it pollutes groundwater through fracking, requires a lot of groundwater to do the fracking in the first place, and then uses more groundwater for cooling. But the further good news is cheaper energy sources drive out expensive ones, and wind and solar are already cheaper than nuclear and coal, and solar is already cheaper than natural gas. Oh, and solar and wind emit no CO2.

Kevin Begos write for AP yesterday, AP IMPACT: CO2 emissions in US drop to 20-year low

“There’s a very clear lesson here. What it shows is that if you make a cleaner energy source cheaper, you will displace dirtier sources,” said Roger Pielke Jr., a climate expert at the University of Colorado.

While conservation efforts, the lagging economy and greater use of renewable energy are factors in the CO2 decline, the drop-off is due mainly to low-priced natural gas, the agency said.

A frenzy of shale gas drilling in the Northeast’s Marcellus Shale and in Texas, Arkansas and Louisiana has caused the wholesale price of natural gas to plummet from $7 or $8 per unit to about $3 over the past four years, making it cheaper to burn than coal for a given amount of energy produced. As a result, utilities are relying more than ever on gas-fired generating plants.

Both government and industry experts said the biggest surprise is how quickly the electric industry turned away from coal. In 2005, coal was used to produce about half of all the electricity generated in the U.S. The Energy Information Agency said that fell to 34 percent in March, the lowest level since it began keeping records nearly 40 years ago.

And that’s why Southern Company (SO) turned towards natural gas: it’s cheaper! SO still prefers nuclear and coal before gas, as SO CEO Thomas A. Fanning keeps reminding us. But even SO couldn’t ignore “the revolution in shale gas”, which is cheaper prices through fracking. Solar PV costs dropped 50% last year alone. How long can SO ignore that?

“Natural gas is not a long-term solution to the CO2 problem,” Pielke warned….

Continue reading →

Withlacoochee and Little Rivers peaking, 2012-08-14

We've seen the Lowndes County PR about Withlacoochee River flooding. Ashley Tye has posted on the Emergency Management page a list of links to river gauges in Lowndes County. Here are current images from each of them, going from upstream to downstream, left to right:

Little River near Hahira (SR 122)
Little River near Hahira (SR 122) 		Withlacoochee River above Valdosta (Skipper Bridge Road)
Withlacoochee River (Skipper Bridge Road)

Withlacoochee River near Foxborough (US 41)
Withlacoochee River near Foxborough (US 41)

Withlacoochee River near Quitman (US 84)
Withlacoochee River near Quitman (US 84)

You can easily see the rivers have peaked upstream at Hahira and Skipper Bridge, may be peaking at Foxborough, but the Withlacoochee is still rising downstream at Quitman.

-jsq

Flooding on the Withlacoochee?

Many of the same factors that cause the prolonged extreme drought we’ve been having (deforestation, impervious surfaces, climate change) also produce flooding when we get a little rain. The flooding map by NWS Advanced Hydrologic Prediction Service, Weather Forecast Office Tallahassee, FL, 2012-08-14 shows minor flooding on the Withlacoochee River at Skipper Bridge Road.

WTXL yesterday posted PR from Lowndes County, Georgia, Withlacoochee River under watch due to rising water, flood warnings,

LOWNDES COUNTY, Ga.—Due to rising waters and the issuance of a Flood Warning by the National Weather Service, Lowndes County Emergency Management continues to monitor rising water levels on the Withlacoochee River at the Skipper Bridge Road stream gauge site.

Currently, the water level stands at approximately 14.3 feet and is expected to crest this afternoon at approximately 14.5 feet.

While a flood warning is in effect, the only area flooded at these Minor Flooding of Withlacoochee River at Skipper Bridge Road, Lowndes County, Georgia levels are woodland areas near the river. Historically, flooding does not affect local roads and/or residences until water levels reach approximately 17 feet.

Lowndes County Emergency Management will continue to monitor conditions and additional updates will be distributed as new information becomes available. While there is no cause for immediate concern, citizens are encouraged to remain aware of their surroundings.

Residents may monitor local river levels by accessing real time stream gauge information by visiting the following link: water.weather.gov/ahps2/index.php?wfo=tae.

For more information, please contact Lowndes County Public Information Officer, Paige Dukes, 229-292-6142 or pdukes@lowndescounty.com.

Curiously, on the County’s own Press Releases web page, there’s no mention of this PR.

-jsq

 

Ed Asner against horse-and-buggy Turkey Point nuclear boondoggle

Nuclear subsidy CWIP rate hikes for power nobody’s getting yet: it’s not just for nukes for Georgia Power and Coal for Mississippi Power, it’s for Florida Power and Light’s Turkey Point nuke boondoggle! Let Ed Asner explain.

Here’s the video:

FPL CWIP Ed Asner asks why not put that $35 billion to better use:

Why would anyone not want to work on renewable safe and much less expensive solar energy, in the sunshine state?!

Or in the Empire State of the South, for that matter. You know, Georgia, the state where FPL Continue reading →

Heat shuts baseload nuclear plants

Baseload nuclear plants can’t take the heat! Meanwhile, zero stories of solar plants shutting down due to heat. Quite the opposite: more sun, more solar power!

Scott DiSavino wrote for Reuters 18 July 2012, Four U.S. power reactors shut & NYC sweats during heat wave,

Several nuclear plants on the U.S. East Coast shut down by early Wednesday and New York’s Consolidated Edison power company reduced the voltage in parts of Manhattan as the obsessive heat wave stressed the region’s power system.

Despite the shutdown of four giant nuclear reactors in New York, Pennsylvania, Maryland and South Carolina, the power systems delivered the juice needed by the regions’ homes and businesses to keep air conditioners humming on the projected last day of a brutal heat wave.

Then there’s this excuse:

Although the heat makes it more difficult to use the warmer river water to cool power plants and can stress power lines due to high usage, the reactors did not necessarily shut due to the heat.

They shut down due to faulty sensors, leaks, or unknown causes, and that’s somehow better?

Meanwhile, solar just keeps generating. I’ve never heard of a wind plant shutting down due to heat, either.

Remind me again, why is Georgia Power’s and Southern Company’s bet-the-farm risk on new nukes at Plant Vogtle a good idea? Wasn’t it supposed to be about dependable power?

-jsq

PS: Owed to Mandy Hancock.