Bob Carter: untroubled by hobgoblins

It is always a privilege to follow the development of a great man’s thinking, and the Australian public — or at least that portion of it that listens to the ABC’s AM news show (“sets the agenda for the nation’s daily news and current affairs coverage”) — was lucky enough to witness evolution in action last Friday, when the programme chose to “balance” a report on the World Meteorological Organisation’s announcement of record temperatures in 2010 by talking to Bob Carter. Readers with long memories will recall that Carter has been louder than most in insisting that the planet’s been cooling for the last ten years, so the programme had a marvellous opportunity to make the great man squirm. Sadly, they blew it.

Here’s what he had to say in April 2009:

First, there has been no recent global warming in the common meaning of the term, for world average temperature has cooled for the last ten years. Furthermore, since 1940 the earth has warmed for nineteen years and cooled for forty-nine, the overall result being that global average temperature is now about the same as it was in 1940.

So how did he cope with the bad news that warming continues? Here’s the transcript & podcast:

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Too many teardrops

This astonishing video was shot on Monday as flash flooding hit the Queensland town of Toowoomba after a reported 140mm of rain fell in only 30 minutes. 12 people are confirmed to have been killed in the region, and 90 more are missing according to state premier Anna Bligh. Floodwaters are rising in the state capital Brisbane, with the central business district closed down. Flood levels are expected to top out above the levels reached in 1974 — the previous record holder. I know that Hot Topic‘s readers will join me in wishing the people of Queensland well. This ABC page has a list of relief funds to which you can donate. I can confirm that Skeptical Science’s John Cook is OK, and not expecting any direct impacts. We’ll be talking to him about the floods in the next Climate Show, scheduled for recording next week.

Has global warming had an impact on this event? Watching the deniers quotes The Age saying that the floods are “consistent with (although not proof of) climate change predictions for northern Australia”, and that seems fair. The direct “cause” of the flooding is the current strong La Niña (possibly the strongest since records began, according to AMOS president Prof Neville Nicholls). This phase of ENSO causes warm water to pile up against NE Australia, helping to fuel large rainfall events. The record floods of 1974, for example, were associated with a La Niña event. To make matters worse, over the last year sea surface temperatures around Australia have been running at record levels, as this Bureau of Meteorology chart from their climate summary for 2010 shows:

The recipe seems clear enough: an intense La Niña and record sea surface temperatures combining to cause record floods. A more precise attribution of warming’s influence on the event will have to wait for the studies to be done, but for the time being it certainly looks likely that this is another extreme weather event which has been made worse by recent warming.

Update 13/1/11: Barry Brook at Brave New Climate considers the costs of the floods, and puts them in to the context of the last few years of Aussie weather extremes, and NASA’s Earth Observatory has an image showing rainfall in the Brisbane area, showing that over 200 mm fell in the flash flood regions.

[Nick Lowe]

Greasy Heart(land)

And so the party’s over, the tables in the ballroom at the Magnificent Mile Marriot Hotel in Chicago have been tidied up and the carpet vacuumed. The Monckton fan club have drifted away from their vigil in the shade of the trees on the sidewalk outside the lobby, and the speakers assembled from around the world have gone home — except for the ones still waiting in line outside Hot Doug’s for the duck fat fries and andouille special (Fridays & Saturdays only, well worth waiting for, I can assure you).

Luckily for us, however, Heartland are promising to make all the talks available on video, so we won’t have to miss any of the highlights. At the moment they only have the keynotes available, but there are quite a few Powerpoints available for download. I’ve been poking around in some of those…

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No Rain in the Amazon

U.S. writer Nikolas Kozloff aims to give a voice to the peoples of the Global South in his new book No Rain in the Amazon. At the same time, as indicated by the sub-title How South America’s Climate Change Affects the Entire Planet, he warns that what happens in the Amazon affects us all, wherever we live.

In this book the South is mainly Peru and Brazil. For the purposes of the book Kozloff traveled throughout the two countries, speaking with government officials, experts, environmentalists, and indigenous peoples. A specialist in Latin American affairs, Kozloff is not a scientist but is well acquainted with current climate science.

He has a lot to tell as he develops his major themes. Among them: climate change is already being experienced in the region and taking effect on poorer people’s lives; it poses further threats for them in the future; the Amazon forests are threatened by climate change, particularly drought; they are also severely threatened by the deforestation caused by humans; loss of Amazon forest is global in its impact because of the vital part it plays in the global environment; the Global North is complicit in deforestation and must help stop it.

In Peru the melting of glaciers carries serious implications on many levels, from  irrigation for farming and water for pack animals through to the long term threat to the water supply to Lima, a city of 7 million built on a desert.  Unpredictable and testing weather patterns are emerging in some regions. The Andean cloud forests, which carry out a vital hydrological function as well as maintaining extraordinary biodiversity, are under threat from climatic change as clouds condense at higher altitudes. Kozloff considers the drastic effects of El Nino events on Peru, including outbreaks of cholera and dengue, and points to the IPCC expectation that El Nino-like conditions are expected to become more frequent with continued global warming.

Kozloff doesn’t constantly enter scientific caveats when assigning the effects of climate change on the lives of poorer people. It’s reasonable that he doesn’t: the cumulative picture is strong, and he’s not arguing the scientific case but giving a voice to people whose plight is being ignored. He comments on the extreme inequalities whereby, in general, the people who are most at risk from global warming live in the nations that have contributed the least to the atmospheric accumulation of carbon dioxide and other greenhouse gases. They also, like Peru, tend to be among the poorest and hence ill-equipped to deal with the changes they are facing.

Turning to the Amazon Kozloff points out that it contains about one-tenth of the total carbon stored in land eco-systems and recycles a large fraction of its rainfall. Drawing on the expertise of much-cited Brazilian scientist Philip Fearnside he explains how El Nino-driven drought is threatening the forest. The warming of sea surface temperatures in the tropical North Atlantic may also be linked to Amazonian droughts. Climate change is responsible for these enhanced threats. And of course the effects are not just local. Tropical rainforest literally drives world weather systems. The billions of dollars needing to be provided by the rich nations to tropical countries to sustain forests are an important and necessary insurance policy.

But the Amazon is threatened by more than climate change.  Deforestation as a result of human activity is the focus of a major section of the book.  Kozloff sets the scene for his survey by pointing out that the relentless slashing and burning of tropical forests is now second only to the energy sector globally as a source of greenhouse gases.  Powerful political and economic forces within Brazil are pushing deforestation, but the Global North is complicit  in the destruction. The affluent nations, acting through large financial institutions, fund destructive tropical industries and buy up the tropical commodities that are hastening the day of our climate reckoning.

The cattle industry accounts for 60 to 70 percent of deforestation in the Amazon. Kozloff recounts some of the brutal realities of ranching and its “insidious alliance” with politicians. Land ownership is often unclear and plagued by corruption. Poor workers can labour in conditions amounting to virtual slavery.  An activist like Sister Dorothy Strang who worked on behalf of landless farmers and advocated for sustainable development projects was eventually simply assassinated. She was an “agitator” who had only herself to blame for her death, said a local cattle ranchers’ leader.  The Brazilian state seems hopelessly compromised by powerful agricultural interests and finds it hard to police the Amazon and control deforestation. But financial institutions in the Global North, like the World Bank, provide key investment backing to the ranching explosion. Northern companies purchase leather, beef and other products and consumers buy them. Blame is shared.

The depressing news doesn’t end with cattle. Kozloff moves on to soy and its reach into the Amazon and the Brazilian cerrado, which covers one-fifth of the country and is the world’s most biologically rich savannah.  Soy monoculture liberates carbon from the soil of the cerrado and its advance also displaces cattle farming into new forest development.

Kozloff acknowledges that there are problems with the Reducing Emissions From Deforestation and Forest Degradation progamme (REDD), not helped by the blocking by the US, Canada, Australia and New Zealand of moves to incorporate protections for indigenous peoples into the programme. But he sees it as “the only game in town right now that makes preserving forests more economically valuable than cutting them down”. Which is the nub of the matter.

Kozloff is not impressed by the “clean energy” initiatives being pursued in Brazil, hydro-electric dams for electricity and biofuels from sugar cane for transport. Apart from the population displacement and road building associated with dam-building, the dams in forest areas lead to vast emissions of methane from the decaying vegetation.  Ethanol from sugar cane has been one of Brazil’s apparent success stories, but it involves destruction of the coastal Atlantic rainforest, one of the world’s top five biological hotspots. The nasty hell of debt-slavery operates in many sugar cane plantations. American agribusiness giants are now rushing to set up shop in Brazil to help greatly expand the industry. Much of the growth may be outside the rainforest, as officials claim, but it is planned to be within the cerrado.

If the Global North wants to avert yet further climate change, Kozloff says, it needs to get serious about the transfer of truly green technologies, particularly wind, solar, and waves. He points to the need for a “Manhattan Project” scale development of alternative clean energies, and the sharing of the new technologies with tropical nations such as Brazil. There’s little sign of such transfer taking place.  Indeed before Copenhagen the US House of Representatives voted unanimously to ensure that the negotiations would not “weaken” US intellectual property rights on wind, solar, and other green technologies.

Full of interesting accounts though it is, the book is hardly a cheering read. Not because nothing can be done for Peru and Brazil by way of mitigation and adaptation but because it is by no means clear that the Global North is ready and willing to provide the necessary assistance. Nevertheless Kozloff presses the case for action convincingly.

Note: There’s a Democracy Now interview with Nikolas Kozloff relating to his book here on YouTube. (It’s in two parts.)

[Buy through: Fishpond, Amazon.com, Book Depository.]

Winter 2010: cold in places, exceptionally hot in others

Northern hemisphere winter, that is — we’re still in a nice warm autumn down here. Before I disappear for a couple of days of hectic activity (vintage 2010 tomorrow, bottling the ‘09 on Monday), I just wanted to draw attention to a couple of articles I read over my Saturday morning toast (fine bread from the farmer’s market). The first is the review of the northern hemisphere winter by Bob Henson at UCAR: an interesting overview of how El Niño and the Arctic Oscillation combined to bring cold and snow to the US and Europe, but record breaking warmth to Canada, Greenland, North Africa and the Middle East. Henson draws on a fascinating statistical analysis of the winter by Geert Jan van Oldenborgh of the Netherlands Meteorological Institute(KNMI), putting the combination of cold, snow and warmth into the context of a changing climate.

2010winterstats.gif

Van Oldenborgh assesses the the likelihood of the various temperature and snowfall anomalies in the context of an unchanging climate, and on the change that current trends indicate has already occurred. The map above left (click to see the original via KNMI) shows how often winters as cold as 2010 would be expected in the current (changing) climate: 10-50 year return periods are common, stretching out to 100-500 years in parts of Siberia. The map at right shows the warm extremes. Even in a warming climate, winter 2010 was a 10,000 year event — extremely unusual — in parts of the Middle East. Egypt’s winter, for instance, was a full 1ºC above the previous record, and 3ºC above the mean. Southern Greenland was also exceptionally warm. Compared with an unchanging climate (assuming that the probabilities for 1971-2000 still apply), the cold anomalies are less extreme because cold events were more common in the past, and the heat extremes were greater. But however you analyse the situation, the warmth experienced in Canada and the Middle East was more unusual than the US and European cold spells. It’s well worth reading van Oldenborgh’s article, even if you’d rather be eating chocolate eggs.

PS: Also noteworthy: David Appell takes a look at why current sea ice extent/areas don’t tell us the ice is “back to normal”, as some would have us believe. In the words of the old joke, sceptics are asserting “never mind the quality, feel the width.”

May all your buns be cross, and hot. Happy Easter.