The not-so-lucky country

Australia-Bondi-BeachThe New South Wales government has decided that Sydney’s current water restricions are going to be permanent, because climate change projections suggest long term reductions in rainfall [Daily Telegraph(AU), ABC]. Meanwhile, CSIRO has released a report suggesting that three of the city’s great beaches could be lost to sea level rise. The Daily Telegraph reports:

[Waverley mayor George] Newhouse launched a climate-change marker today at North Bondi Children’s Pool, which he said was forecast to be under water by 2030. The marker indicates to beach visitors the predicted water height by 2100. “At Bondi, Tamarama and Bronte, we will just lose the whole beach and at other beaches like Collaroy and Narrabeen (in Sydney’s north) we will see houses falling into the water,

“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”

Hot wine, or merely mulled?

GrapesJim Salinger of NIWA gave a talk on climate change and its implications for New Zealand’s wine growers at their annual Romeo Bragato conference, held in Auckland at the end of August.. The Herald reported some of the likely changes:

In the Gisborne area, chardonnay was likely to be replaced by shiraz, grenache and zindafel, while chardonnay and merlot were likely to be replaced by shiraz and malbec in Hawke’s Bay. Wairarapa’s pinot noir could be supplanted by merlot, malbec and cabernet franc grapes while cabernet sauvignon and merlot were likely to replace sauvignon blanc in Marlborough. In Canterbury, sauvignon blanc could replace chardonnay, while the pinot noir very suited to both Canterbury and Otago, could spread out to higher altitude sites in these regions.

Meanwhile, Napa Valley wineries are concerned about predictions that their premium vineyards could be worthless by the second half of this century, and in Alsace growers are reporting that climate change is already having a dramatic impact:

On a cobweb-encrusted rafter above his giant steel grape pressers, Rene Mure is charting one of the world’s most tangible barometers of global warming. The evidence, scrawled in black ink, is the first day of the annual grape harvest for the past three decades. In 1978, it was Oct. 16. In 1998, the date was Sept. 14. This year, harvesting started Aug. 24 — the earliest ever recorded, not only in Mure’s vineyards, but also in the entire Alsace wine district of northeastern France.

Mure wants to experiment with Rhone varietals like syrah, but France’s appellation rules make that difficult.