2000s warmest decade ever, 2009 to be 5th warmest year

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The World Meteorological Organisation has announced that 2009 is likely to be the fifth warmest year in the global temperature record, and the first decade of the 21st century will be the hottest since instrumental records began in the 1850s. The UK Met Office graphic above shows how the decadal average for the “naughties” easily tops the 1990s, confirming that strong warming continues despite sceptic claims of cooling. Commenting on the release for the Science Media Centre, NIWA principal climate scientist Jim Renwick said:

It is a very good overview of the state of the global climate in 2009, something that has only become possible to do in close to real-time since the advent of comprehensive satellite (and other) observing systems. The climate in 2009 show a mix of events, underlining the effects of climate extremes upon humanity, from the Victorian bush fires, to drought in China, and heat waves in Europe and India. The climate change signal is clear, with the current decade coming in warmer than the 1990s, which were warmer than the 1980s.

See also: BBC, Independent (UK), NZ Herald, NOAA, UK Met Office.

Fourteen days to seal history’s judgment on this generation

coplogoThis editorial was published yesterday by 56 newspapers around the world in 20 languages including Chinese, Arabic and Russian. No newspapers in New Zealand or Australia carried the message. As a call to action, I believe it’s worth featuring here in full, and I am happy to endorse both the content and the sentiment expressed. The text was drafted by a Guardian team during more than a month of consultations with editors from more than 20 of the papers involved. Like the Guardian most of the newspapers took the unusual step of featuring the editorial on their front page.

Today 56 newspapers in 45 countries take the unprecedented step of speaking with one voice through a common editorial. We do so because humanity faces a profound emergency.

Unless we combine to take decisive action, climate change will ravage our planet, and with it our prosperity and security. The dangers have been becoming apparent for a generation. Now the facts have started to speak: 11 of the past 14 years have been the warmest on record, the Arctic ice-cap is melting and last year’s inflamed oil and food prices provide a foretaste of future havoc. In scientific journals the question is no longer whether humans are to blame, but how little time we have got left to limit the damage. Yet so far the world’s response has been feeble and half-hearted.

Climate change has been caused over centuries, has consequences that will endure for all time and our prospects of taming it will be determined in the next 14 days. We call on the representatives of the 192 countries gathered in Copenhagen not to hesitate, not to fall into dispute, not to blame each other but to seize opportunity from the greatest modern failure of politics. This should not be a fight between the rich world and the poor world, or between east and west. Climate change affects everyone, and must be solved by everyone.

The science is complex but the facts are clear. The world needs to take steps to limit temperature rises to 2ºC, an aim that will require global emissions to peak and begin falling within the next 5-10 years. A bigger rise of 3-4ºC — the smallest increase we can prudently expect to follow inaction — would parch continents, turning farmland into desert. Half of all species could become extinct, untold millions of people would be displaced, whole nations drowned by the sea. The controversy over emails by British researchers that suggest they tried to suppress inconvenient data has muddied the waters but failed to dent the mass of evidence on which these predictions are based.

Few believe that Copenhagen can any longer produce a fully polished treaty; real progress towards one could only begin with the arrival of President Obama in the White House and the reversal of years of US obstructionism. Even now the world finds itself at the mercy of American domestic politics, for the president cannot fully commit to the action required until the US Congress has done so.

But the politicians in Copenhagen can and must agree the essential elements of a fair and effective deal and, crucially, a firm timetable for turning it into a treaty. Next June’s UN climate meeting in Bonn should be their deadline. As one negotiator put it: “We can go into extra time but we can’t afford a replay.”

At the deal’s heart must be a settlement between the rich world and the developing world covering how the burden of fighting climate change will be divided — and how we will share a newly precious resource: the trillion or so tonnes of carbon that we can emit before the mercury rises to dangerous levels.

Rich nations like to point to the arithmetic truth that there can be no solution until developing giants such as China take more radical steps than they have so far. But the rich world is responsible for most of the accumulated carbon in the atmosphere – three-quarters of all carbon dioxide emitted since 1850. It must now take a lead, and every developed country must commit to deep cuts which will reduce their emissions within a decade to very substantially less than their 1990 level.

Developing countries can point out they did not cause the bulk of the problem, and also that the poorest regions of the world will be hardest hit. But they will increasingly contribute to warming, and must thus pledge meaningful and quantifiable action of their own. Though both fell short of what some had hoped for, the recent commitments to emissions targets by the world’s biggest polluters, the United States and China, were important steps in the right direction.

Social justice demands that the industrialised world digs deep into its pockets and pledges cash to help poorer countries adapt to climate change, and clean technologies to enable them to grow economically without growing their emissions. The architecture of a future treaty must also be pinned down – with rigorous multilateral monitoring, fair rewards for protecting forests, and the credible assessment of “exported emissions” so that the burden can eventually be more equitably shared between those who produce polluting products and those who consume them. And fairness requires that the burden placed on individual developed countries should take into account their ability to bear it; for instance newer EU members, often much poorer than “old Europe”, must not suffer more than their richer partners.

The transformation will be costly, but many times less than the bill for bailing out global finance — and far less costly than the consequences of doing nothing.

Many of us, particularly in the developed world, will have to change our lifestyles. The era of flights that cost less than the taxi ride to the airport is drawing to a close. We will have to shop, eat and travel more intelligently. We will have to pay more for our energy, and use less of it.

But the shift to a low-carbon society holds out the prospect of more opportunity than sacrifice. Already some countries have recognized that embracing the transformation can bring growth, jobs and better quality lives. The flow of capital tells its own story: last year for the first time more was invested in renewable forms of energy than producing electricity from fossil fuels.

Kicking our carbon habit within a few short decades will require a feat of engineering and innovation to match anything in our history. But whereas putting a man on the moon or splitting the atom were born of conflict and competition, the coming carbon race must be driven by a collaborative effort to achieve collective salvation.

Overcoming climate change will take a triumph of optimism over pessimism, of vision over short-sightedness, of what Abraham Lincoln called “the better angels of our nature”.

It is in that spirit that 56 newspapers from around the world have united behind this editorial. If we, with such different national and political perspectives, can agree on what must be done then surely our leaders can too.

The politicians in Copenhagen have the power to shape history’s judgment on this generation: one that saw a challenge and rose to it, or one so stupid that we saw calamity coming but did nothing to avert it. We implore them to make the right choice.

Links: Guardian original, how the editorial was compiled, the 56 newspapers. Distributed under a Creative Commons license.

CRU emails show fraud? Yeah, right.

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Want to know just how much you have to read into the stolen CRU emails to uncover fraud? This excellent Youtube video explains the background to two of the more widely quoted passages — and in passing presents a few of the absurd accusations from the likes of Limbaugh and Beck in the USA. For members of the reality-based community, those sections may be painful. The whole thing’s well worth a watch — if only for the most creative use of the phrase “febrile nitwits” I’ve come across this year. Presenter “potholer54” has a Youtube channel devoted to climate and science issues, which is also well worth exploring.

NZ temps: more stations, no adjustments, still warming

NIWA has released details of a newly calculated long term temperature series for New Zealand, based on 11 stations that have had no major site moves or significant adjustments made to their raw data. Running from 1930 to present, the series shows that significant warming has taken place, confirming that the national temperature series recently attacked in a shonky analysis published by the NZ Climate “Science” Coalition and Climate Conversation Group is not only pointing in the right direction, but actually warming a little more slowly than the new series.

Here’s a graph of the new compilation:

The stations used in the analysis are Raoul Island, Tauranga Airport, Ruakura (Hamilton), Gisborne Airport, Chateau Tongariro, Palmerston North DSIR/AgResearch, Westport Airport, Molesworth, Queenstown, Invercargill Airport and Campbell Island. All were identified by Jim Salinger as offering consistent long term records requiring little or no adjustment for site moves or other influences. Salinger’s calculations were confirmed separately by NIWA’s chief climate scientist Jim Renwick, and the results were identical. Over the period, warming of 1ºC is seen.

Bottom line? Unless there’s a significant “urban heat island” at places like Molesworth Station, warming over New Zealand and in the wider NZ region is undeniable.

Continue reading “NZ temps: more stations, no adjustments, still warming”

Goodness gracious me

Bryan Walker, my esteemed co-blogger and assiduous reviewer of books on climate, is taking a short break from duties at Hot Topic. He’s going into hospital today to prepare for heart surgery later in the week (he needs a new aortic valve). He should be back in the reins before Christmas, but in the meantime I hope you’ll join me in wishing him well. Being away from the internet for a while will probably do his blood pressure no harm, either…

[Peter Sellers & Sophia Loren]