Saturday, August 25, 2007

Is a 3,000 Square Foot House a McMansion?

Michigan Democrat John Dingell, chairman of the House Energy and Commerce Committee and well known thorn in the side of environmentalists for blocking legislation to raise fuel efficiency standards for cars, is drafting a bill which would eliminate the tax deduction on mortgage interest for a house larger than 3,000 square feet. Dingell is quoted in the Washington Post as saying:

remove the mortgage interest deduction on McMansions -- homes over 3,000 square feet.

There probably would be a lot of support for removing this tax deduction for McMansions but does a 3,000 square foot really classify as a McMansion? While there is no agreed on definition, a house of 3,000 square feet seems a bit small to make the grade. In a post on this blog that I wrote earlier this month it was noted that nationally known land use law expert John Nolon from Pace University Law School uses the definition of 6,000 to 8,000 feet. He was quoted in the Guardian as saying that:

A 6,000 sq ft-8,000 sq ft house is a climate change disaster. If the country doesn't rein in the construction of these mansions the message to individuals is that they're encouraged to follow their urges. The phenomenon with McMansions is similar to that with SUVs: they express a certain sort of success, they're available and they're fun.

Nolon clearly is talking about very large houses when he uses the term McMansions. Dingell however is including houses that are only slightly larger than the average size new house. Why is he even using the term McMansion?

Perhaps Dingell is trying to appear green while proposing legislation which has no chance of passing. If he used Nolon’s definition and made the cutoff at 6,000 square feet that might be hard for the real estate and developer lobbies to defeat. The Washington Post article says that realtors and home builders are already up in arms about Dingell’s proposal. They probably won’t be the only ones.

Dingell is the chairman of an extremely important committee when it comes to the issue of global warming. We can only hope that he sincerely is trying to reduce greenhouse gas emissions and not just trying make it look like that is his goal.

Wednesday, August 22, 2007

Nothing Funny About Belching Livestock

It is not surprising that many people find it hard to take seriously the claims that methane expelled by cows can be a threat to the planet. It seems more like gross-out humor than serious climate science. Particularly since many people believe that the methane comes out at the end of the digestive tract as in humans. Actually most of this methane is expelled by belching.

According to a recent article in The Christian Science Monitor cows burp about once every 40 seconds. Their digestive processes yield as much as 100 gallons a day of methane and much of it is released through belching. Multiply that by all the cows in the world and you can be begin to see why this has no relationship to toilet humor. Considering that methane is a much more powerful greenhouse gas than carbon dioxide with regard to heat trapping (although it does not last nearly as long in the atmosphere) it is clear that this is very serious business.

To make this subject even more grim cows are not the only type of livestock that burp methane. For example, sheep are also part of this problem. A reporter from a Western Australian radio station discovered that in her part of the world this is particularly true because of the high salinity which results in the sheep eating bush that generates lots of burping.

Kay Balatero recently discussed the issue of belching cows on Gristmill blog and noted that scientists are looking for ways to change the diet of livestock to cut down on the belching. She finds herself doubting the wisdom of this effort:

But I'm somewhat skeptical about this dietary tampering; the idea of manipulating cow diets even further than we already have is a little disconcerting. We've seen corn-fed CAFO [confined animal feeding operations] cows become more susceptible to disease as a direct result of eliminating their natural diet of grass, leading to overuse of antibiotics by the beef industry. Would it be better to leave well enough alone, and simply consume less (sustainably raised) beef?

In theory, the problem could be solved by humans becoming vegans in vast numbers. Who needs billions of livestock if we no longer eat beef or lamb or consume dairy products such as milk, cheese, ice cream, and yogurt. The chance of this happening seems to be zero. If civilization is going down, it hardly seems likely that people would give up such perceived pleasures as eating a choice cut of grilled steak or a juicy hamburger from the barbecue during the descent.

Saturday, August 18, 2007

Does DiCaprio’s Lifestyle Matter?

Most humans don’t fly. Among those who do most do not fly in their own private jets. But Leonardo DiCaprio does fly in his own private jet and since he is a celebrity calling for action against global warming this really bothers some people. It really bothers Glenn Barry who runs the climate change and global warming portal Climate Ark. It bothers Barry so much that he has issued an action alert to :

Let Leo know that the battle to stop the growth in aviation's greenhouse gas emission is one the most important environmental battles ever that requires his personal example. To be a credible messenger of global ecological sustainability Leonardo must both walk the walk and talk the talk. Let him know you will see his movie if he swears off private jets.

On other extreme, David Roberts blogging on Huffington Post has a simple reaction to all this agitation over how DiCaprio travels. Roberts says “eh.” Roberts explains his “who cares” attitude by saying:

I care about global warming. I don't think celebrity behavior is going to affect the issue one way or the other…

Whether or not celebrities matter in the fight against global warming it is a sure bet that we are going to keep hearing from celebrities on this issue. Celebrities are so much part of the media that is it almost impossible to imagine the media without them. Probably the mayor of Seattle, Greg Nickels, who originated the U.S. Mayors’ Climate Protection Agreement which has now been signed by over 600 mayors and town supervisors has done more to combat global warming than all of the celebrities combined if you leave out Al Gore but outside of the Seattle area you are unlikely to see him show up in the media. The value of the media to the fight against global warming is largely to show pictures of the effects of climate change such as melting glaciers, stranded polar bears, etc. When it comes to taking action against global warming the media will focus on celebrities which is not where the action is.

Sunday, August 12, 2007

What’s the Deal with Dingell?

A debate among environmentalists is raging over whether the proposals by Michigan Democrat John Dingell, chairman of the House Energy and Commerce Committee, represent a sincere effort to fight global warming or a sneaky way to prevent meaningful legislation on raising CAFE standards for cars. On Gristmill blog, David Roberts is defending Dingell while Joseph Romm accuses Dingell of using the “poison pill” strategy to undermine legislative efforts to raise CAFE standards.

Trying to decipher Dingell’s motives becomes even more complicated when you realize that only last December when asked whether a scientific consensus on global warming has been established Dingell replied:

"This country, this world, the [human] race of which you and I are a part, is great at having consensuses that are in great error. And so I want to get the scientific facts, and find out what the situation is, and find out what is the cure, and find out what is the cure that is acceptable to the country that I represent and serve."

So here is someone who only recently was wondering whether humans are to blame for global warming and now has proposed the following strong measures as listed by David Roberts:

A carbon tax of up to $100 per ton.

A gas tax of $0.50 a gallon.

A cap-and-trade system.

Ending the mortgage tax deduction for "McMansions" over 3,000 sq. feet.

All with the goal of reducing GHG emissions 60-80% by 2050.

Clearly there would be great political opposition in the United States to at least three of these proposals, the carbon tax, gas tax, and end of the mortgage deduction for many people. And coming from someone who only about eight months ago appeared to have been in the global warming skeptics camp has to raise doubts over the sincerity of these proposals. However, after holding hearings on global warming and energy maybe Dingell has had an epiphany and has decided that he is the one to put forth truly strong legislation, sort of like Richard Nixon, who made his reputation by being an anticommunist deciding that he would be the one to open the door to communist China.

Even if Dingell’s motives can not be unequivocally determined, his proposals seem to provide hope that the debate in the US Congress has at last shifted from whether human sources are the cause of global warming to what to do about it.

Saturday, August 04, 2007

Folly of Building McMansions

Although people buying SUVs have taken most of the heat for making foolish purchases while the global warming crisis has taken on alarming proportions the folly of those buying McMansions is now starting to gain attention. An article in the Guardian quotes John Nolon, a leading land use law expert from Pace University Law School, as saying:

A 6,000 sq ft-8,000 sq ft house is a climate change disaster. If the country doesn't rein in the construction of these mansions the message to individuals is that they're encouraged to follow their urges. The phenomenon with McMansions is similar to that with SUVs: they express a certain sort of success, they're available and they're fun. If legislative folks don't take some kind of position on mansionisation, it will go unchecked.


Compared with modest size houses of perhaps 2,000 square feet McMansions of 6,000 to 8,000 square feet take more energy to heat in the winter and cool in the summer. Also, there is a lot more space to light and more room for all those energy using appliances such as TVs and computers. With about half of electricity being generated with coal burning in the United States it is not hard to see why McMansion building is another driver of global warming.

The article points out that there are places that are starting to take action to halt this madness. For example, Boulder, Colorado, the first city in the US with a carbon tax, has imposed a cap on the size of new house after the average size new house grew to over 6,000 square feet.

The excesses in American society seem endless. Limiting house size might be a good place to start attacking the bigger is better problem. Bigger isn't better because our planet isn't getting any larger.

Saturday, July 28, 2007

Will Greener Planes Bring Meaner Conditions Around Airports?

Generally reducing greenhouse gas emissions is associated with providing other environmental benefits but in a Washington Post article the director of research and technology at Rolls-Royce, Richard J. Parker, says that focusing on reducing carbon dioxide emissions by engineers might result in new engines that are noisier or produce more of the environmentally troublesome nitrogen oxides than present engines. In the words of Parker:

"Will people living near airports win out, or will the planet as a whole win out?"

Not a great choice. Of course, there is always the option of flying less but this also has negative consequences, particularly for people in less developed areas who depend on hoards of tourists booking their hotels to survive economically. It seems that choices have to be made and everyone can’t win.

Friday, July 20, 2007

Al Gore: a Help or Hindrance?

It is almost taken for granted that Al Gore has made an immeasurable contribution to the cause of fighting global warming, nearly single-handedly it sometimes seems moving the issue from the green edges of society into the mainstream. Yet, on Earth Meanders blog Glen Barry strongly criticizes Gore’s strategy when he says:

I am concerned with the direction Al Gore, as the self-appointed climate movement leader, is taking -- emphasizing celebrity and inadequate small personal responses, to the detriment of grassroots inspired major cultural change necessary to save the Earth.

Perhaps a bigger problem of Gore leading the charge is that he is a polarizing figure. Millions of conservatives don’t like him, Bill, or Hillary. Although he says this should not be a partisan issue it is hard to see how it can not be if he is the one out in front. There must be many people who won’t listen to his recommendations simply because he is Al Gore.


Despite all the problems with the second half of the Clinton-Gore ticket being seen at the leader in the fight to stop global warming and all the celebrities he has enlisted in the cause it still must be acknowledged that he is capable of reaching people in the mainstream with his message that grassroots environmentalists have no way of reaching. These are probably people who tend to closely follow the world of celebrities in television, film, music, sports, etc but do not pay much attention to “serious” political issues. Gore has somehow bridged the gap. But I guess it is Barry’s point that in doing so there is a trade off in that the suggested changes can not be too radical, even it that is what it takes to deal with the problem which Barry and many others have concluded.

Sunday, July 15, 2007

Southern Utilities Cling to Coal Burning

We know historically that the South has been extremely slow to change and in fact has been so slow that it has been forced to change when it came to slavery and segregation. It appears that this pattern of resisting change is continuing when it comes to switching from coal burning to renewable energy sources. According to an article from the Associated Press, whereas nearly half of the states now have adopted mandates requiring electric utilities to produce a specific percentage of electricity from renewables, Texas is the only state in the South with such a mandate. Moreover, half of the votes in the Senate to defeat federal legislation to require 15% of electricity to come from renewables were cast by senators from southern states.

A good appreciation of the coal-burning situation in the South can be gained by watching the film Kilowatt Ours. The film shows how burning coal in the South has resulted in the Great Smokey Mountain National Park often being filled with haze instead of usually offering crystal clear views of distant mountains as in the past and how the need for coal in the South, which uses more coal than the national average for generating electricity, leads to the disgraceful practice of mountaintop mining in West Virginia.

The AP article says that the US Environmental Protection Agency ranks three southern utilities—Southern Co., Duke Energy, and the Tennessee Valley Authority—among the top four greenhouse gas emitting utilities in the US. The number one emitter, Southern Co., doesn’t even appear to admit that emissions of carbon dioxide are related to global warming based on statements such as the following by senior executive Chris Hobson who was quoted in the article as saying:

"If we are irrational about it and we cripple our economy or cripple our industry and we realize carbon dioxide wasn't the source of the problem, then we'll be real regretful."

Maybe someone at Southern Co. should read the latest reports from the Intergovernmental Panel on Climate Change. If they did they would learn that carbon dioxide and other greenhouse gases emitted from human sources are the source of the problem. Scientists will never say they are 100% sure of a conclusion but this statement was about as close as they will ever get. The Old South may be mostly gone but the New South needs to transform into the Green South.

Saturday, July 14, 2007

More Energy Efficient Light Bulbs but not TVs

The gains in energy efficiency being made by replacing the familiar incandescent light bulbs with compact fluorescents that use much less electricity are probably being wiped out and then some by replacement of cathode ray TVs with large screen plasma or LCD TVs which use far more electricity. Add in all the new gizmos with rechargeable batteries and it is hard to see how we can carry out Al Gore’s pledge item 3 “To fight for a moratorium on the construction of any new generating facility that burns coal without the capacity to safely trap and store the CO2” without leaving ourselves in the dark. Since it is very expensive to trap CO2 and the technology for storing it safely is not yet proven and may never be the pledge may really mean no new coal plants period. All the more reason to stress energy efficiency.

The British seem to be more worried about this problem than we are here in the US. A recent article in the Guardian on report by the Energy Saving Trust (EST) said the following:

The proliferation of home entertainment equipment such as flat screen TVs, digital radios and laptops in homes means that by 2020 this type of technology will account for 45% of domestic electricity use.

The running cost of today's plasma and LCD screen TVs can be as much as three times that of traditional cathode ray tube sets. The largest domestic plasma TV on the market - with a massive 103 in screen - has a power rating of 1.5kw, which means watching it uses as much energy as leaving 25 light bulbs on.

This means 14 power stations will be required just to power equipment used for communication and entertainment, the EST said in its report the Ampere Strikes Back.

Al Gore has done a great job in educating the public about the threat of global warming but he has yet to make the same impact with regard to educating us about energy efficiency. Should he tell us to stop buying all these large screen TVs? So far I don’t think he has. Where is the US version of the Ampere Strikes Back? All we seem to have in America is millions of people buying giant TVs to watch the Empire Strikes Back, etc. At the rate we are going what we are going to have is the climate striking back.

Thursday, July 12, 2007

The Carbon Dioxide Emissions Per Capita Problem

If there is any issue that appears to be an insurmountable obstacle to reducing greenhouse gas emissions globally it appears to be the issue surrounding per capita emissions of carbon dioxide. Spokesmen for China, which has recently been crowned as the number one greenhouse gas polluter in the world, displacing the long-time reigning champion the United States of America, are quick to point out that on a per capita basis their emissions are far below those of the US, which is correct since each of us in America on average is responsible for more than four times the amount of emissions than those who live in China.

If global emissions of carbon dioxide are now about 30 billion tons a year, then on average the 6.5 billion inhabitants of our planet are responsible for about 4.5 tons each. With the average American responsible for emitting about 20 tons annually we are way above the average. The climate scientists say that to have a decent chance of avoiding the most serious consequences of global warming we have to reduce our emissions globally by about 80% by 2050. So the 30 billion tons a year would have to fall to roughly 6 billion tons a year. It is predicted that there will be 9 billion people on Earth by 2050 so on average they would have to be responsible for emitting only about 0.7 tons of carbon dioxide a year. Hopefully the math here is wrong (it probably is) because that seems like a very difficult goal to achieve, particularly in face the demands for equality in emissions per capita between the developed countries and developing countries.

Monday, July 09, 2007

Live Earth in Retrospect

It is hard to know what to make of the Live Earth concerts on Saturday. It seemed like an odd mixture of environmental activism, hedonism, and consumerism. Can this type of strange brew really lead to radical change? How ironic was it that the webcast of the concerts was sponsored by General Motors, the same company that has been leading the fight against higher fuel efficiency standards for cars over more than a decade. Before you could watch the concerts online you had to see a Chevy commercial. At least the webcast wasn’t sponsored by ExxonMobil, the leading financial backers of misinformation about global warming. But is GM really that far behind in being one of the global warming bad boys? Then there is the issue of pop and rock stars who unfairly or not could be considered as icons for consumerism. Private jets, yachts, numerous homes, etc. When it comes to making carbon footprints many of them are Godzillas. Add to that their international tours and they are responsible for pumping out a heck of a lot of carbon.

There didn’t seem to any songs that compared to the 60s classics such as Blowin’ in the Wind, The Times They Are a-Changin’, I Ain’t Marching Anymore, etc. I agree with Al Gore that music can reach people in ways that are unique but the music at the concerts came up short with regard to delivering any message.

It was hard to understand why there was no concert in India. The big three who are not going along in trying cut greenhouse gas emissions are the US, China, and India. All three will have undertake all out efforts to cut emissions if there is any hope of limiting global warming before climate change reaches catastrophic proportions based on what the leading climatologists are saying.

Of course Live Earth is only one small part of the overall efforts to address climate change. Most of what is happening does not make headlines. Perhaps the real hope for change lies in the less glitzy stuff that is going on.

Saturday, June 30, 2007

Dem Debaters Don’t Dwell on Global Warming

Nobody expected global warming to be a main topic at the recent debate by Democratic presidential candidates held at Howard University but in retrospect it seems surprising that so little was said about it. Major problems such as the war in Iraq, an inadequate health care system, inequalities in education were, and discrimination against blacks were addressed in depth but global warming was not. It is particularly surprising that none of the debaters mentioned global warming when the topic turned to helping Africa. The reports on climate change indicate that the adverse consequences will be felt most severely in Africa and Asia, particularly among the poor with Africa seemingly in line to take the hardest hit. Not even, Mike Gravel, the former senator from Alaska, who seemed to stray quite far from the more conventional views did not say anything about how global warming needs to be addressed to prevent catastrophe in Africa. If Al Gore had been one of the debaters it is hard to imagine that global warming would have gotten so little attention. At least next Saturday at the Live Earth concerts he will have his chance to tell everyone about the need to fight global warming to save Africa and all of the other continents.

Tuesday, June 19, 2007

China Zips Past the US as Number One Carbon Dioxide Emitter

After all the speculation about when China would pass the US in emissions of carbon dioxide, this year, or in 2008, or later, it turns out that China has already attained the dubious distinction as the world’s top emitter of carbon dioxide according to an article in the Guardian. It was the Netherlands Environmental Assessment Agency which came up with this surprising finding. The calculations show that China actually outdid the US in carbon dioxide emissions last year by a whopping 8%. A scientist from the agency in the Netherlands said that the difference in carbon dioxide emissions between China and the US was so great in 2006 that almost surely China also took the lead as the number one greenhouse gas emitter. There it is, we have a new champ. Of course on a per capita basis China isn’t close to the US in pumping out greenhouse gases. The US quadruples China. No contest. Now that the China has passed the US in carbon dioxide emissions the prognosticators can turn their attention to India. In what year will India pass the US? Let the guessing begin.

Saturday, June 16, 2007

Carbon Offsets Are Offsetting More Guilt than Carbon

An investigative report in the Guardian continues to strip away the claims about the benefis that have been touted for carbon offsets. According to the report very little carbon has actually been offset for two reasons:

“First, these schemes are unregulated and wide open to fraud.”

“Second…even the most well-intentioned schemes suffer from basic weaknesses in the idea of carbon offsetting - an idea which flows not from environmentalists and climate scientists trying to design a way to reverse global warming but from politicians and business executives trying to meet the demands for action while preserving the commercial status quo.”


It seems likely that no matter how little is actually accomplished by carbon offsets people will continue to buy offsets because it makes one feel like one is doing something about global warming. The main contribution of carbon offsets might be to make money for both those who are honest and have the best intentions and those who are ethically challenged and simply out to make a quick buck. There are of course many other methods available to fight global warming but whether they will be employed in time on a wide enough basis seems at the moment very uncertain.

Sunday, June 10, 2007

China and India Say No Thank You to G8 Climate Deal

According to an article on the Telegraph.co.uk website both China and India have rejected the G8 climate change deal in which it was inferred that when negotiations on specifics of greenhouse gas reductions take place developing countries would be included. Responses from leaders in China and India imply that these two highly populated countries expect to work more in tandem on climate change and want the developed countries to go first. The developed countries should have already gone first. The potential threat of global warming was well understood in the 1980s and became more clear in the early 1990s with the first report was issued by the Intergovernmental Panel on Climate Change. The US should have taken the lead back then, but instead did nothing. So here we are in 2007 with China and India, now with booming economies that are churning out greenhouse gases at an alarming rate, saying that the developed countries should take the lead and the developed countries saying that the developing countries must be included. Basically we seem to have a circle of statements going nowhere.

Saturday, June 02, 2007

Validity of Kyoto Carbon Savings Questioned

A report in the Guardian says that “The Clean Development Mechanism (CDM), which is supposed to offset greenhouse gases emitted in the developed world by selling carbon credits from elsewhere, has been contaminated by gross incompetence, rule-breaking and possible fraud by companies in the developing world….” The CDM is one of the main ways being used by countries trying to reduce greenhouse gas emissions to reach the targets set under the Kyoto Protocol. According to the Guardian report UN paperwork indicated the following:

Most of the concern is around the crucial CDM test of "additionality" - proof that a project is delivering cuts in greenhouse gases that would not otherwise have happened. In an unpublished report, one of the CDM board's expert advisers, Axel Michaelowa, examined all 52 Indian projects which had been registered up to May 2006 and found that a third of them failed this additionality test.
Mr Michaelowa found evidence of projects supplying false information which was then accepted by the companies who were supposed to check it. In one case cited in the report, he accuses an Indian company of making statements which were "blatantly false". Despite his protests, that scheme was approved.

There are enough obstacles to achieving reductions in greenhouse gas emissions on a scale sufficient to prevent catastrophic climate change without integrity being a major problem. Add concerns about integrity of the process and hopes for success grow that much dimmer. Maybe the first step in solving the problem of reducing greenhouse gas emissions should be figuring out a way to reduce human greed. Bring on the psychologists.

Saturday, May 26, 2007

US Fails to Embrace G8 Global Warming Proposals

The Washington Post reports that the environmental organization Greenpeace has leaked a document showing that the US is fundamentally opposed to proposals made by Germany to combat global warming which would involve timetables and targets for cutting greenhouse gas emissions. The proposals by Germany are being made to secure an agreement at the G8 summit which will be held on June 6 to 8 in Heiligendamm, Germany. The US opposition is hardly surprising. The Bush administration has almost always seemed more interested in following its extreme conservative ideology than in solving problems. Ideological triumph appears to be its ultimate objective. The disasters of Iraq and Katrina and the looming disaster of climate change do not seem to matter. What does matter is gutting government regulations and spreading unfettered capitalism. It seems clear that we will have to wait for 2009 until any real action is taken on the international level to fight global warming, however, with the window of opportunity rapidly closing based on the latest scientific findings even that might be too late.

Monday, May 14, 2007

Has a Key Global Warming Tipping Point Already Been Passed?

An explanation by climate scientists of why carbon dioxide levels in the atmosphere have recently been spiking suggests that global warming is now reducing the ability of the environment to absorb carbon dioxide from human sources. An article in The Sydney Morning Herald says that scientists have been fearing that increasing temperatures could reduce carbon absorption by the environment. If this tipping point has in fact been reached, then even the recent report by the Intergovernmental Panel on Climate Change which said that reduction of carbon emissions must begin globally no later than 2015 to avoid catastrophic climate change (see previous post) may need to be revised to an even more pessimistic conclusion. The research team, which published their findings in Geophysical Research Letters, studied the spike in atmospheric carbon dioxide levels during 2002 to 2003. The scientists found that the only explanation for the spike was that because of unusual conditions of heat and dryness plants took up less carbon dioxide that they normally do. So, is unstoppable global warming already here? Perhaps that might be the next inconvenient truth.

Sunday, May 06, 2007

Only About Three Thousand Days Left to Reduce Greenhouse Gas Emissions

The most recent report from the Intergovernmental Panel on Climate Change confirms that time is quickly running out to take effective action against global warming. According to the Guardian, “The report said global emissions must peak by 2015 for the world to have any chance of limiting the expected temperature rise to 2 C, which would still leave billions of people short of water by 2050.” That’s eight years or about 100 months or approximately 3000 days. The consequences of global warming are expected to be catastrophic if the 2 C limit is exceeded. Not much time to go from annual global increases of greenhouse gas emissions to annual reductions. Perhaps naming a specific year by which the U turn must occur will help. Nothing like a tight deadline to get people’s attention. Nevertheless, most factors point to continued increases of greenhouse gas emissions globally for decades to come: increasing populations; spreading affluence in the developing world; reluctance of the US, China, and India to agree to any mandatory cap on emissions; the abundance of coal as a cheap source of energy; the ability of large oil and coal companies to protect their profits regardless of the environmental consequences; the energy inefficiency that has been built into the way of life in the US; etc. It may still be too early to throw in the towel. The political dynamics could be changed by next US election in November of 2008. Perhaps when the election results become clear it will be time to head for the linen closet.

Friday, April 20, 2007

Step It Up to 95% Reduction in Carbon Emissions

The photos of Step It Up events from last Saturday showing banners calling for Congress to reduce carbon emissions by 80% by 2050 may not have reached individual members of Congress yet and already the 80% figure appears to be too low. According to a report in Reuters two scientists from the Center for International Climate and Environmental Research in Oslo, Norway are saying that to hold global warming to a 2 C increase from preindustrial levels (anything beyond that level of warming is considered to be extremely dangerous) the wealthy countries such as the United States would have to reduce emissions by 95% from 2000 levels by 2050. Overall global emissions would have to be reduced by 80%, the Step It Up figure, but since developing countries such as China and India would not be expected to reduce their emissions by that much the wealthy countries would have to make up the difference. Al Gore actually called for a 90% reduction when he spoke before the congressional committees a few weeks ago so he was closer to the mark. The scientists, who will be publishing their paper in the journal Climatic Change, also made this depressing statement: “Any delay in implementing emissions reductions will make the 2 degree target practically unreachable.” Do we have until 2009 at least? Seems unlikely much will happen before then given the present occupant of the White House.