Tag: ice

More ice/less ice

PolarsternMore on the Arctic melt: the National Snow and Ice Data Centre updates its commentary on this year’s record ice minimum. As of yesterday, the five day moving average of ice was still moving downwards, but slowly. Their comment on the North West Passage is interesting.

The main, deep channel of the Northwest Passage (Lancaster Sound to M’Clure Strait) has been open, or nearly ice-free, for about five weeks (since August 11, approximately). Of note is the northernmost ice edge ever recorded, at 85.5 degrees North, near the 160 degrees east longitude line.

Meanwhile, the RV Polarstern (see pic), near to completing a voyage through the Arctic as a contribution to International Polar Year, reports that large areas of this year’s ice have only been 1m thick – a 50% reduction on only 6 years ago. When the ship got close to the pole, it started raining. Ursula Schauer wrote (in early September):

A whole day of rain within 150 km of the North Pole came somewhat as a surprise! For the past few weeks, one low-pressure system after another has continuously carried warm air from northern Siberia (15°C at the Lena estuary!) towards the central Arctic Ocean. In this way the sea ice disintegrates more and more right before our eyes.

Meanwhile, I’ve bet Stoat (aka William Connolley) that 2008 will beat 2007’s record low. But only £10…

“Global warming heroes” ride on

CowFederated Farmers president Charlie Pedersen (our second Pedersen of the day — see ice post below) uses the opportunity of an opinion column in the Herald today to run his NZ farmers are “global warming heroes” PR once more round the block.

Surely it would be better for the global environment if these inefficient food producers scaled back their food production, and instead bought more food from New Zealand. It seems obvious that increasing greenhouse gas emissions in New Zealand to produce more food is, overall, a better way to curb climate change. The whole world would be better off. So the next time you hear someone having a go at New Zealand farmers stuffing up the climate, challenge it. Remember, compared with subsidised, inefficient farmers in most other countries, New Zealand farmers are climate change heroes.

Charlie gets the basics of his argument right: food miles are a blunt tool, NZ farmers are — in world terms — relatively low-carbon producers of food, but his main point is both subtle and debatable. Buying NZ farm produce instead of more local, but higher carbon food would result in a net reduction in global emissions — if it were likely to happen. It isn’t. The “local food” movement (evidenced by the huge growth in farmer’s markets around the world) is about more than just carbon emissions. Consumers buy local because they like to support their local producers, and celebrate fresh seasonal produce. It’s a food and lifestyle movement, not a green ideology. It’s not going away, and whether our farmers like it or not, NZ is not local to anywhere other than itself.

The “subsidised, inefficient farmers” Charlie’s busily bagging will respond by reducing their carbon footprints, and improving their international carbon competitiveness. Our farmers need to be proactive, and do the same if they want to maintain their sales in export markets. It’s a commercial necessity. Sitting on your carbon laurels is not good policy.

A passage to India

Easice07News of the melting Arctic has finally reached the media in New Zealand. Last night’s TV One news featured an item on the opening of the “fabled

Arctic carries on melting

Ice070911Compare this picture with the one accompanying my last post on this season’s record-breaking sea-ice melt in the Arctic Ocean. More ice has gone, and although the end of the melt season is fast approaching, this year’s low is already about one million square kilometres less than the previous minimum, set in 2005. The NSIDC’s most recent report (Sept 10) also demonstrates that an area of ocean about the size of California is ice-free for the first time since satellite observations began in 1979. As the ocean cools, it will give up heat to the atmosphere. This could delay the onset of the northern hemisphere winter – and perhaps mean a repeat of last year’s mild NH autumn and the late arrival of winter. In turn, this sets up the Arctic for another year of record low ice in 2008, leading to suggestions that the Arctic could be ice-free in summer long before the IPCC expected. From The Guardian [UK]:

Continue reading “Arctic carries on melting”

Back in harness

ChinaI bought one of Martin’s pork pies today. After too much yak in Shangri-La, I found myself lusting after something a little more in my own cultural tradition… But as I try to catch up with climate news, I find that Xian Ge Li La is in the news for all the wrong reasons:

KUNMING, September 10 — One of China’s leading tourist landmarks, Meili Snow Mountain, will be devoid of snow within 80 years if global warming trends continue, a meteorological scientist warned on Monday. Liu Jiaxun also said China’s lowest and southernmost glacier, Mingyong, has shrunk by at least 40 meters over the past 13 years. The combined effects of ice melting and drying water sources would have devastating effects downstream, said Liu, deputy director of the Meteorological Bureau of Diqing Tibetan Autonomous Prefecture, in northeastern Yunnan Province. Mingyong — at 2,700 meters above sea level and 28.5 degrees north — had the lowest elevation and latitude of all China’s glaciers, said Liu. At 11.7 km long and covering 13 sq. km, it was shrinking faster than any other Chinese glacier, he said.

Sadly, during my visit to the Diqing Tibetan Autonomous Prefecture the Himalayas were shrouded in cloud. It rained. (Picture from Erhai Lake near Lijiang). Catching up will continue soon.

[Update: Pictures of the Meili Snow Mountain and glacier from China View here. The clouds cleared briefly, apparently…]