Has global warming stopped?

'The global temperature of 2007 is statistically the same as 2006 and every year since"

'The fact is that the global temperature of 2007 is statistically the same as 2006 and every year since 2001'. Plus read Mark Lynas's response

Global warming stopped? Surely not. What heresy is this? Haven’t we been told that the science of global warming is settled beyond doubt and that all that’s left to the so-called sceptics is the odd errant glacier that refuses to melt?

Aren’t we told that if we don’t act now rising temperatures will render most of the surface of the Earth uninhabitable within our lifetimes? But as we digest these apocalyptic comments, read the recent IPCC’s Synthesis report that says climate change could become irreversible. Witness the drama at Bali as news emerges that something is not quite right in the global warming camp.

With only few days remaining in 2007, the indications are the global temperature for this year is the same as that for 2006 – there has been no warming over the 12 months.

But is this just a blip in the ever upward trend you may ask? No.

The fact is that the global temperature of 2007 is statistically the same as 2006 as well as every year since 2001. Global warming has, temporarily or permanently, ceased. Temperatures across the world are not increasing as they should according to the fundamental theory behind global warming – the greenhouse effect. Something else is happening and it is vital that we find out what or else we may spend hundreds of billions of pounds needlessly.

In principle the greenhouse effect is simple. Gases like carbon dioxide present in the atmosphere absorb outgoing infrared radiation from the earth’s surface causing some heat to be retained.

Consequently an increase in the atmospheric concentration of greenhouse gases from human activities such as burning fossil fuels leads to an enhanced greenhouse effect. Thus the world warms, the climate changes and we are in trouble.

The evidence for this hypothesis is the well established physics of the greenhouse effect itself and the correlation of increasing global carbon dioxide concentration with rising global temperature. Carbon dioxide is clearly increasing in the Earth’s atmosphere. It’s a straight line upward. It is currently about 390 parts per million. Pre-industrial levels were about 285 ppm. Since 1960 when accurate annual measurements became more reliable it has increased steadily from about 315 ppm. If the greenhouse effect is working as we think then the Earth’s temperature will rise as the carbon dioxide levels increase.

But here it starts getting messy and, perhaps, a little inconvenient for some. Looking at the global temperatures as used by the US National Oceanic and Atmospheric Administration, the UK’s Met Office and the IPCC (and indeed Al Gore) it’s apparent that there has been a sharp rise since about 1980.

The period 1980-98 was one of rapid warming – a temperature increase of about 0.5 degrees C (CO2 rose from 340ppm to 370ppm). But since then the global temperature has been flat (whilst the CO2 has relentlessly risen from 370ppm to 380ppm). This means that the global temperature today is about 0.3 deg less than it would have been had the rapid increase continued.

For the past decade the world has not warmed. Global warming has stopped. It’s not a viewpoint or a sceptic’s inaccuracy. It’s an observational fact. Clearly the world of the past 30 years is warmer than the previous decades and there is abundant evidence (in the northern hemisphere at least) that the world is responding to those elevated temperatures. But the evidence shows that global warming as such has ceased.

The explanation for the standstill has been attributed to aerosols in the atmosphere produced as a by-product of greenhouse gas emission and volcanic activity. They would have the effect of reflecting some of the incidental sunlight into space thereby reducing the greenhouse effect. Such an explanation was proposed to account for the global cooling observed between 1940 and 1978.

But things cannot be that simple. The fact that the global temperature has remained unchanged for a decade requires that the quantity of reflecting aerosols dumped put in our atmosphere must be increasing year on year at precisely the exact rate needed to offset the accumulating carbon dioxide that wants to drive the temperature higher. This precise balance seems highly unlikely. Other explanations have been proposed such as the ocean cooling effect of the Interdecadal Pacific Oscillation or the Atlantic Multidecadal Oscillation.

But they are also difficult to adjust so that they exactly compensate for the increasing upward temperature drag of rising CO2. So we are led to the conclusion that either the hypothesis of carbon dioxide induced global warming holds but its effects are being modified in what seems to be an improbable though not impossible way, or, and this really is heresy according to some, the working hypothesis does not stand the test of data.

It was a pity that the delegates at Bali didn’t discuss this or that the recent IPCC Synthesis report did not look in more detail at this recent warming standstill. Had it not occurred, or if the flatlining of temperature had occurred just five years earlier we would have no talk of global warming and perhaps, as happened in the 1970’s, we would fear a new Ice Age! Scientists and politicians talk of future projected temperature increases. But if the world has stopped warming what use these projections then?

Some media commentators say that the science of global warming is now beyond doubt and those who advocate alternative approaches or indeed modifications to the carbon dioxide greenhouse warming effect had lost the scientific argument. Not so.

Certainly the working hypothesis of CO2 induced global warming is a good one that stands on good physical principles but let us not pretend our understanding extends too far or that the working hypothesis is a sufficient explanation for what is going on.

I have heard it said, by scientists, journalists and politicians, that the time for argument is over and that further scientific debate only causes delay in action. But the wish to know exactly what is going on is independent of politics and scientists must never bend their desire for knowledge to any political cause, however noble.

The science is fascinating, the ramifications profound, but we are fools if we think we have a sufficient understanding of such a complicated system as the Earth’s atmosphere’s interaction with sunlight to decide. We know far less than many think we do or would like you to think we do. We must explain why global warming has stopped.

David Whitehosue was BBC Science Correspondent 1988–1998, Science Editor BBC News Online 1998–2006 and the 2004 European Internet Journalist of the Year. He has a doctorate in astrophysics and is the author of The Sun: A Biography (John Wiley, 2005).] His website is www.davidwhitehouse.com

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When heritage becomes hate: why my home town of Charlottesville needs to address its complex past

After an invasion of white supremacists, we need to see what our history means today.

Watching a tragedy happening in slow motion, without any way to stop it - that’s how it has felt to be from Charlottesville, Virginia in the summer of 2017. A city that used to always get voted “happiest town in the USA” when I was growing up was the target this weekend of an ugly white supremacist movement whose roots spread far from the city.

It was a huge surprise when we won the lottery of Nazi flags, with our stupid old statues that have become icons of international fascism, with a park named after a distantly forgotten old man becoming a site of struggle for an attempted racist coup of the United States. Our first reaction is: they aren´t from here. Our second: make them go away. Our third: a realisation we need to examine the way that our own ways of life, which we thought so harmless, have inspired such horrible feelings in strangers.

Maybe for my African-American classmates at high school the statue of Confederate general Robert E Lee, and the park when it was still named after him rather than Emancipation Park, always meant violence. Pulling the statue down says no more about the historical Lee than tearing down Lenin in '89 says about socialism. We've been invaded by people pretending to protect us from invasion, and the symbols of our past will never matter as much as living people do.

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The invaders picked our town, probably, because Virginia was a confederate state, and was in fact where the southern gentry used to live. Lee exemplified this tradition. He was son of Lighthorse Harry Lee, a hero of the revolutionary war and governor of Virginia, and is a descendant of one of “Virginia’s first families,” the aristocratic Englishmen who emigrated to Virginia when it was a British colony. He is part of Charlottesville's heritage, and perhaps not even all that shameful a part. He opposed the secession of the confederacy, supported the reconstruction after the war, including giving rights to recently freed slaves. Not exactly woke, but for a confederate general, not as bad as some.

We were taught at Venable Elementary School that he fought only reluctantly, to defend his land, not slavery. In the version we learned, one would imagine Lee being very opposed to people from the Midwest coming to Virginia in cars with Ohio license plates to murder Virginians. Many non-racist Virginians, including quite a few friends, respect Lee deeply - the same is true in towns like New Orleans where other Lee statues are being taken down. Yet if once we could fool ourselves into thinking that the statue didn't represent hatred and racial hierarchies, we can't anymore. The discussion of local history has turned into one of national identity. The statue should be gone by Christmas. 

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The real hero of Charlottesville is the town’s founder, Thomas Jefferson, who was among the most enigmatic of the founding fathers, idealistic and hypocritical - a real American, in other words. His idea of the gentleman farmer is also part of our heritage. It was an alternative to Hamiltonian industrial capitalism, but lost out in the tustle to shape American history. Much like English contemporaries such as William Cobbett, Jefferson believed in a rural ideal, reading poetry by morning, farming by afternoon, playing the harpsichord by night. His thought is also present in our beautiful "academical village" of the University of Virginia which he also founded. It is one of UNESCO’s few world heritage sites in the United States, so I guess it is part fo the globe's heritage as well, and it is also where the white supremacists stomped around with their tiki torches.

It’s time for us to stop being romantic about Jefferson, too. The statue in our minds needs to come down. We can recognize the great parts of his work, of his thought, in Charlottesville today, but we can also recognise that he allowed himself to use violence to dominate others, that he owned slaves and raped them. And we can recognise that equivalent scenarios continue to play out today, and will continue to play out until we are willing to face the truth.

There can be no more excuses. It’s not about Jefferson, or Lee, after all. We use monuments, statues, heroes, to inspire ourselves. In the end, the “truth” about Jefferson or Lee is a matter of trivia and history. Today, for every white male in America, we need to deconstruct the parts of our identity built on the graves of others. It’s not easy.

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Jefferson's gentleman farmer was the forerunner of the people who populate the gentrified Charlottesville that exists today of expensive coffee-shops and celebrity-filled suburbs. This romantic idea, much like the lifestyles of the American and English elite today, seems to engender a lot of resentment from those who can only watch helplessly, and are often gentrified out. It’s not only immigrants or, in the United States, African-Americans, who are denied access to America's Williamsburgs and Charlottesvilles, London's Shoreditches and Oxfords. In Charlottesville, descendants of white sharecroppers and black slaves alike are unable to afford $15 glasses of local Virginia wine.

The paradox implicit in Jefferson’s beautiful idea is that in the end, it’s impossible to sustain this chilled-out and happy lifestyle without the labor being done by others, be they slaves, sharecroppers, or factory workers in China. If America is in trouble now, the conflict comes precisely from the fact that our universalist ideas of freedom, equality, and liberty correspond to an economy that is anything but universal. We actually did it, keep doing it, and unless we can use these ridiculous men dancing through our streets iin Halloween costumes as a funhouse mirror to make us see ourselves as we are, we’ll probably keep doing it.

I resent Jefferson for his hypocrisy, because in truth, I would love it if America looked more like Charlottesville than the industrialized and nasty-looking Interstate 95 highway that leads up the East Coast, the aftermath of Hamiltonian industrial-revolution factory America. The New Jersey towns, the gas stations, what we contemptuously call “McMansions,” suburban Northern Virginia... none of it is really authentic enough. Parallel to the rich and ugly suburbs, are poor and ugly towns, the sort of places with unemployment and discounts on cereal that tastes like sugary trash in the supermarket.

The residents of these towns don’t hate the residents of more gentrified towns for our organic granola, they hate the world for the structures of oppression that they can’t escape, even as an international class, an educated class, a well-meaning class, escapes without even needing to. We coexisted in the same place but not the same set of opportunities, and we glided on to new and bigger worlds of possibility, ones denied to those of different class backgrounds, regardless of their ethnicity.

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Some of my African-American classmates at Charlottesville High School were likely descendants of Jefferson’s slaves, coming from poorer neighbourhoods and housing projects and taking "standard" level classes, with honors and AP classes for students whose parents worked in the University (very liberal, of course), a genteel place where every year, some kid wears blackface or a Nazi outfit to a party - as a joke, of course. While my classmates in AP and Honors classes got help from our teachers in applying to Ivy League schools, the general level classes saw black and white students who shared poorer backgrounds acting out to get attention from harried teachers. This was public school, but Charlottesville’s many excellent private schools, of course, didn’t even have the general level students at all.

Despite some southerners such as Lee supporting the post-war “reconstruction,” white resistance to racial equality led to a Jim Crow system that wasn’t much better than slavery, and an American South which dozed in sweaty decline while the rest of the country industrialised and modernized. From 1865 to 1965, not much happened in the South. True, there were intellectual movements like the Agrarians, whose 1920s manifesto “I’ll Take My Stand” I found one high school afternoon in the local bookstore, we had our Faulkners, our occasional geniuses. But as a society, it was stagnant. 

It was only when the civil rights movement began that the south began to actually rise again. UVa went from being a minor regional school to being a world-class one. Charlottesville went from being a mediocre gentleman’s club to a place that people of all backgrounds could make lives for themselves in the public service. And we, the public, gained so much - that’s why my family chose to live there.

I remember as a child strolling the beautiful downtown mall to go to dinner al fresco with my parents, my father pointed out a man in a turban; it was Satyendra Huja, a Sikh professor at the university who had planned the downtown mall, and made a useless street into one of the nicest places to congregate in town. In 2012, Huja became the mayor. I guess the former mayor of Charlottesville who single-handedly made Charlottesville one of the most charming towns in the country often gets told to “go home,” as if that's somewhere else.

Martin Luther King Jr.’s birthday is a national holiday in the United States, but in Virginia it used to be “Lee/King/Jackson” day, with two confederate officers added in just as a reminder. That’s not really our heritage, and as students, we were grateful for the day but always laughed at how immature it was that the powers that be needed to block out Dr. King’s achievements so much.

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Charlottesville is a southern town true to and even obsessed with our heritage - a place filled with museums, historians, bookstores - which wants to dissect that heritage to remove the parts of our forefathers (and mothers) lives that we can’t accept, like a sandwich that you open up, take the pickles out of, and then keep on eating. We love our heritage in Virginia. We read about it, celebrate it, live it every day. But heritage isn’t a static thing, fixed in time, and the walls between myth and history are thin. In fact, perhaps knowing about your heritage is the ultimate form of privilege. I doubt that either the descendants of slaves I went to high school  with, or the “redneck” (so-called because they got sunburned by working in the fields - “redneck” is a class slur) descendants of the illiterate sharecroppers of rural Maryland, do. 

What happened this weekend to Charlottesville could happen to any town as long as we those who are deprived of their history and who don’t feel at home in their hometown. But the Charlottesville I remember, and the one it is now, proves that you can go from war and conflict and institutionalised racism to one where people of all races and identities can coexist, for the most part, peacefully and happily. We can, if we try, honor Jefferson for his achievements without forgetting the slaves his beautiful buildings were built by. A “Memorial to Enslaved Laborers” is being built on the campus he founded.

For the first time, every one of my old friends is thinking about racism, white privilege, the origins of violence, and what we can do about it. We can honor Jefferson and General Lee’s memory best by trying to learn from their mistakes. Maybe, if it seems like we are able to solve these problems, I’ll have a child myself. I hope she goes to Venable Elementary School, and I’ll take her to Emancipation Park afterwards.