Tag: Topic

Is there life after breakfast?

homer.jpg Morning Report is a breakfast fixture chez HT. As a way of keeping in touch with the news, it has no equal. By some strange whim of editorial decision-making(*), this morning they decided to give Bob “The Great Communicator” Carter a chance to trot out his “I am the balanced middle of this debate” line, and rubbish mainstream climate science (stream, podcast). Perhaps it was intended as some sort of balance to items on the G8 and carbon targets. Sean Plunket does his best to skewer Carter on his framing of the issue, but Bob smoothly denies what he’s just said (describing the IPCC as “extremist”), and then goes on to misrepresent the real science. Plunket doesn’t call him on that – which is not surprising, given that he’s a radio journalist rather than a climate specialist – and so Carter achieves his main aim: sowing seeds of doubt in the minds of the radio audience, creating the illusion of substantive scientific debate, and thus providing cover for those who want to do nothing.

But Morning Report’s biggest mistake was to fail to identify Carter as a leading member of the NZ Climate “Science” Coalition. He’s not in the balanced middle, he’s way out in crankdom, and that should have been pointed out.

[* I find that Bob gave a talk in Christchurch last night.]

All together now

tintinsnowy.jpg It’s getting hectic down here in the Waipara bunker: articles to write, truffles to harvest – stuff is piling up, not least in a multitude of tabs in my web browser, items set aside as possible subjects for posts here. So here’s one of my infrequent omnibus posts to give me some room to move around the web…

Continue reading “All together now”

Hole in the ice

BremenAMSR-E080702crop.jpg The National Snow & Ice Data Centre in the US is issuing regular (monthly, though they might have to become more frequent soon) updates on the progress of this year’s Arctic melt season. Today they released their report for June, and like their earlier reports (accessed from the drop down menu top right on the page), it includes a lot of very interesting reading. Here’s a highlight:

June sea ice extents in 2008 and 2007 are essentially identical, and near the lowest values for June ever recorded by satellite for the Arctic.

They note that the spatial pattern of melt this year is very different to last year, with much less melting in the Chuckchi Sea (top left on the pic at top – click for a bigger version), and much more to the north of Greenland and the Canadian archipelago. But the big news is that this year’s melt season started much earlier than usual. Take a look at this graphic:200807NSIDCmelt2.jpg

The blue bits show the areas that start melting latest. 2007 was close to the long term average in that respect, and the difference with this year is striking:

This year, sea ice in the Beaufort Sea began to melt on average 15 days earlier than normal, and 15 days earlier than last year. Surface melt in the Chukchi and East Siberian seas was 6 days earlier than normal, and 14 days earlier than in 2007. In the central Arctic Ocean, melt began around June 9th, which was 12 days earlier than normal and 9 days earlier than the year before.

Even the areas where the ice still looks pretty solid (north of Siberia) started melting weeks ahead of normal. The next month is going to be extremely interesting. The odds are tipping my way again…

Note: my new favourite site for monitoring the current sea ice area is the University of Bremen’s imagery. I don’t mean to be disloyal to Cryosphere Today, which remains essential, but Bremen’s images are higher resolution, and to my eye make what’s going on easier to follow. If we could just get some of CT’s features at Bremen, and vice versa… 😉

[This post updated July 4 to reflect amended NSIDC graphic and text (see comments). Doesn’t look as bad as it did – but that’s not much cause for comfort.]

Love is hot, truth is molten

Tuatara.jpg It’s a bleak outlook for sexual equality in tuatara refuges in the Cook Strait. By the end of the century, their nesting sites could have warmed up enough to make all hatchlings male. Nature News reports on new, detailed modelling of how tuatara’s island homes will respond to climate warming:

With the aid of computer software, the researchers combined the physics of heat transfer with terrain data for the four-hectare North Brother Island in New Zealand’s Cook Strait. Using the exact coordinates of 52 known nesting sites of the rarest species of tuatara (Sphenodon guntheri), along with a database of current soil properties and their constant temperature equivalent, the researchers simulated climate change and then monitored its effect on specific points across the island. They found that based on maximum warming predictions, tuatara, which hatch as males when nest temperature during development moves above 21.5°C, will be incapable of producing females.

Fortunately there’s a solution: tuatara tents, and camping holidays in cool places.

“We can put shade cloth over their nesting sites to effectively change their sex ratio back to a 1-to-1 ratio even if the planet warms — or start translocating them to other places that would be more suitable, ” [research leader Nicola] Mitchell [of the University of Western Australia in Perth] adds. “Translocations are already occurring to the mainland and we now have a tool to identify which locations would produce favourable sex ratios.”

[Mitchell, N. J. , Kearney, M. R. , Nelson, N. J. & Porter, W. P. Proc. R. Soc. B doi:10.1098/rspb.2008.0438 (2008).]

Mrs O’Leary’s Cow

homer.jpg Did you know that all cows are carbon neutral? That all the fuss about forcing farmers into an emissions trading scheme is stuff and nonsense? You do now, thanks to the sterling efforts of the Carbon Sense Coalition, an Australian organisation. They issued a press release yesterday, news of which reached me via the Royal Society‘s daily news alert:

News release: Farm lobbies abandon farmers. The Carbon Sense Coalition today accused the big farming lobby groups, government departments, politicians and Ministers representing agriculture of ignoring science and abandoning farmers to unjustified carbon taxation.

Ignoring science, eh? I went in search of what they might be on about…

[Warning: do not read while drinking – extreme beverage/screen interface risk]

Continue reading “Mrs O’Leary’s Cow”