As I’ve argued before (here) there are a number of reasons why buying food locally is probably the least sustainable basis on which to base your food buying preferences.
First, transport is only a small component of the total carbon emissions from agriculture.
Second, most food can’t be grown locally without resorting to potentially environmentally damaging practices like excessive application of fertiliser, irrigation or artificial heating of greenhouses.
Third, even where the local area is suitable for growing certain foods, it might not be the most environmentally efficient location for a particular food.
Fourth, producers in more distant locations might have superior farming practices to local growers. Fifth, the environmental and economic cost of moving people is higher than the cost of transporting their food.
Now Stephen Budiansky has assembled an array of interesting factoids in this NY Times oped, Math lessons for locavores, to show the folly of being a locavore. He’s a stylish writer so you might want to read the full article; otherwise here are a few key quotes:
- “Whether it’s grown in California or Maine, or whether it’s organic or conventional, about 5,000 calories of energy go into one pound of lettuce. Given how efficient trains and tractor-trailers are, shipping a head of lettuce across the country actually adds next to nothing to the total energy bill. Read the rest of this entry »
According to Paul Austin in The Age (29/11/10), there’s little doubt that infrastructure inadequacies weighed heavily on voters’ minds in last Saturday’s election. His list of problems includes overcrowded trains, congested roads, the Myki debacle and long hospital waiting lists.
The pressure to “fix” these problems from voters in the eastern suburbs and sandbelt electorates that fell to the Coalition on Saturday will be immense.
Dr Gruen contends that governments in Australia have focussed on the cost of debt but have ignored the benefits. They’ve reduced the budget deficit to zero but exchanged it for an infrastructure deficit. Their constituents have saved on debt repayments, but:
they are paying inflated tolls on roads and heavy mortgage repayments that reflect the lack of land release and the loading of infrastructure charges onto the land that has been released. And they are paying with their time as they wait at peak hour in traffic that has slowed to a crawl or crowd into late trains and buses.
Thanks to the culture of strict fiscal rectitude that dominates modern government thinking, new debt has been kept off the government’s balance sheet by funding infrastructure in other ways – partly through asset sell-offs but mostly via Public Private Partnerships (PPPs). Read the rest of this entry »
For some people, the inner city means the area where cafe society thrives – probably a 10 km circle around the CBD in cities like Sydney and Melbourne. Or it might mean the extent of medium density historic terrace housing.
Some Brisbanites think of the inner city as the large area covered by the Brisbane City Council (1,367 km2) while some Melburnians think of it as the area serviced by tram lines.
Planners have addressed this problem by adopting simple measures. For example, in Melbourne the inner city is customarily defined as the area covered by the central municipalities of Melbourne, Yarra and Port Phillip (77 km2). Sometimes the Prahran portion (SLA) of the City of Stonnington is also included.
In my work on Melbourne I define the inner city as the area (79 km2) within a 5 km radius of the City Hall . This approximates closely to the three inner municipalities, but I use it because it’s consistent with what’s done elsewhere. US researchers typically use a 3 mile radius to define the inner city – an area approximating the size of the central Counties of the larger metros.
There are a number of problems with this sort of ‘administrative’ approach. A key one is that there is no underlying rationale for where the boundary is drawn – why not 2 km or 10 km? Another is that it doesn’t really connect with people because it has no obvious reference like, say, the tram network. Read the rest of this entry »
The Age editorialises (21/11/10) that Melbourne 2030 is effectively dead and I agree. The latest nail in the coffin in The Age’s opinion is the apparently burgeoning growth of housing in townships and hamlets located in the peri urban area outside the Urban Growth Boundary (UGB).
I’ve argued before that this sort of “decentralisation” is poor policy (e.g. here and here). But I also think The Age has tended to ‘catastrophise’ the scale of the problem, especially with its highly misleading contention that Melbourne has “sprawled 50% beyond the official growth boundary, spanning 150 kilometres from east to west”.
However what interests me at the moment is why Melbourne 2030 failed. The key reason in my view is that it blithely assumed that enough affordable dwellings – mostly town houses and apartments – could be provided within the established urban areas to avoid the need for the UGB to be extended.
This objective was never realistic for a number of reasons. Read the rest of this entry »