Tag: EV

So it goes

NZETS.jpg The cacophony of lobbying around the proposed Emissions Trading Scheme (ETS), coupled with high petrol prices, has prompted the government to announce a couple of changes to the scheme. Liquid fuels were supposed to enter the ETS in 2009, but this has now been delayed to 2011, and the phase out of the free allocation of emissions units to big emitters will now be postponed five years until 2018 [Herald, Radio NZ, Dominion Post].

Announcing the changes to the proposed legislation, Helen Clark also released the latest figures for the Kyoto liability:

… the provisional net position is projected to be a deficit of 21.7 million units during the first commitment period of the Kyoto Protocol (2008-2012). This compares with the projected deficit reported in May 2007 of 45.5 million units, and is a drop of 52 per cent. This means the liability halves from $1 billion to $481.6 million.

When the ETS was announced last year, it was projected that the net liability would be about 22 million units after taking the expected effects of the scheme on emissions into account. The government is clearly confident that high petrol prices will achieve the same effect as the ETS over the two year extension period. That’s a defensible position at the moment, but if fuel prices fall the Kyoto liability could increase. It signals, perhaps, that the government is reasonably confident that petrol prices won’t fall. Or perhaps simply that in an election year contentious new policy is up for grabs. The word pusillanimous springs unbidden to my mind…

The fuel move is getting the most attention, but the five year extension on allocations of free units to big emitters is a direct response to intensive lobbying from those sectors. It will significantly reduce the business costs of cutting emissions in the longer run, but also amounts to an extension of a tax payer subsidy to those businesses. It will be interesting to see how they respond. Looking into my crystal ball, I confidently predict someone will say “it’s a welcome move, but not big enough”.

Cool for cats

FishThe second climate forecast for the next decade has been published [Advancing decadal-scale climate prediction in the North Atlantic sector, Keenlyside et al, Nature, behind a firewall but available here], and the world’s media – and a fair number of blogs – have jumped all over its suggestion that there might be some regional cooling over the next decade. Richard Black at the BBC headlined his piece “Next decade ‘may see no warming'” , the New York Times‘ Andy Revkin settled for “In a New Climate Model, Short-Term Cooling in a Warmer World”, which becomes “Next decade may see no warming” at frogblog and “Global Warming on hold until 2015 claim Germans” at Kiwiblog. So what’s going on? Is global warming really on hold?

Continue reading “Cool for cats”

Skating away (on the thin ice of a new day)

Mar-2008-Ice-Age.jpg A new forecast for this summer’s Arctic sea ice melt suggests that there’s a 60% chance that this year’s minimum will set a new record. Work by researchers at the University of Colorado’s Center for Astrodynamics Research shows that the current ice is much thinner than usual:

“The current Arctic ice cover is thinner and younger than at any previous time in our recorded history, and this sets the stage for rapid melt and a new record low,” said Research Associate Sheldon Drobot, who leads CCAR’s Arctic Regional Ice Forecasting System group in CU-Boulder’s aerospace engineering sciences department. Overall, 63 percent of the Arctic ice cover is younger than average, and only 2 percent is older than average, according to Drobot.

The image above shows the age of the current ice cover compared to average for this time of year (you can click on the image to see a larger version). Yellow is the same as average, red is younger. For the bigger picture, visit the Arctic Ice Forecasting System pages at UC.

This has prompted me to increase my sea ice bet with William “Stoat” Connolley by £10 to £30 (plus a signed copy of Hot Topic). With the seasonal melt speeding up, the race is on…

[Hat-tip to Eli Rabett]

White light/white heat

NZETS.jpg The proposed Emissions Trading Scheme (ETS) is under intense scrutiny at the moment. Lobbyists, economists and politicians are all pounding their respective beats, and as is usual in these matters, a great deal more heat than light is being shed on the proposed legislation. At the beginning of the week, the government’s climate change leadership forum – the great and the good of the business world – announced that it supported the broad outline of the ETS with some caveats (announcement, Herald), only for Business NZ to promptly withdraw its support. Then the Sustainability Council of NZ published a report [PDF] criticising the way that the ETS transfers revenue from consumers to key industries – especially agriculture – and warned that it wouldn’t do enough to reduce emissions. Not to be outdone, the NZ Institute for Economic Research produced its own report [PDF], warning that the scheme would do little good and cost the economy billions, and advising that we shold do nothing except buy Kyoto compliance on the world market. ACT leader Rodney Hide then announced that “the Government’s ETS is a crock and should be dumped.” There are now rumours that the government is running scared, and might delay implementing the petrol and fuels part of the scheme to avoid frightening consumers in the run up to the election. So, who’s right? Is Rodney’s incisive analysis on the money?

Continue reading “White light/white heat”

It’s a gas, gas, gas

arcticmethane.jpg It’s not good news. The USA’s National Oceanic and Atmospheric Administration (NOAA) has produced its annual report on greenhouse gas levels in the atmosphere, and carbon dioxide concentration continues its accelerated growth. And there are signs that methane levels are beginning to rise, after a decade of remaining more or less static. The BBC reports:

NOAA figures show CO2 concentrations rising by 2.4 parts per million (ppm) from 2006 to 2007. By comparison, the average annual increase between 1979 and 2007 was 1.65ppm.

The methane rise is worrying because it’s a very powerful greenhouse gas (23 times as effective at trapping heat as CO2), and there are a number of positive feedbacks that could come into play as the planet warms. From the NOAA release:

Rapidly growing industrialization in Asia and rising wetland emissions in the Arctic and tropics are the most likely causes of the recent methane increase, said scientist Ed Dlugokencky from NOAA’s Earth System Research Laboratory. ”We’re on the lookout for the first sign of a methane release from thawing Arctic permafrost,” said Dlugokencky. “It’s too soon to tell whether last year’s spike in emissions includes the start of such a trend.”

Permafrost is one thing, methane hydrates are another. Sometimes called burning ice, methane hydrates (aka clathrates) are a mixture of ice and methane that exist in large quantities on the sea floor – and there are particularly large amounts in the shallow Arctic seas north of Russia and Siberia (more info at Climate Progress). At the recent European Geophysical Union conference in Vienna, a Russian scientist discussed the issue. From SpiegelOnline:

In the permafrost bottom of the 200-meter-deep sea [off the northern coast of Siberia], enormous stores of gas hydrates lie dormant in mighty frozen layers of sediment. The carbon content of the ice-and-methane mixture here is estimated at 540 billion tons. “This submarine hydrate was considered stable until now,” says the Russian biogeochemist Natalia Shakhova, currently a guest scientist at the University of Alaska in Fairbanks who is also a member of the Pacific Institute of Geography at the Russian Academy of Sciences in Vladivostok.

The permafrost has grown porous, says Shakhova, and already the shelf sea has become “a source of methane passing into the atmosphere.” The Russian scientists have estimated what might happen when this Siberian permafrost-seal thaws completely and all the stored gas escapes. They believe the methane content of the planet’s atmosphere would increase twelvefold. “The result would be catastrophic global warming,” say the scientists.

The SpeigeOnline article is worth reading in full. Shakova’s observations of methane emissions hint at an explanation for the increase in global atmospheric methane. If that’s the case – and its too early to say for sure – then we may be seeing the beginnings of one of the most worrying of the positive carbon cycle feedbacks – one that could potentially make anything we do to cut CO2 emissions the equivalent of pissing in the wind.

[Hat tip for the Spiegel piece to No Right Turn – I’m frankly amazed the EGU paper hasn’t had much more coverage in the world’s media.]

[Update for the interested: The EGU abstract for Shakhova’s paper is here [PDF]. Here’s the last few words:

“…we consider release of up to 50 Gt of predicted amount of hydrate storage as highly possible for abrupt release at any time. That may cause ~ 12-times increase of modern atmospheric methane burden with consequent catastrophic greenhouse warming.”

“Abrupt release at any time”. That’s truly alarming.]