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In 1993, a Swedish researcher calculated that the ingredients of a typical Swedish breakfast-apple, bread, butter, cheese, coffee, cream, orange juice, sugar-travelled a distance equal to the circumference of the Earth before reaching the Scandinavian table. In 2005, a researcher in Iowa found that the milk, sugar, and strawberries that go into a carton of strawberry yogurt collectively journeyed 2,211 miles just to get to the processing plant. As the local-food movement has come of age, this concept of “food miles” has come to dominate the discussion.
The concept offers a kind of convenient shorthand for describing a food system that’s centralized, industrialized, and complex almost to the point of absurdity. And, since our food is transported all those miles in ships, trains, trucks, and planes, attention to food miles also links up with broader concerns about the emissions of carbon dioxide and other greenhouse gases from fossil fuel-based transport.
So is eating local food better? And what exactly is “local food” in the first place? How local is local?
One problem with trying to determine whether local food is greener is that there’s no universally accepted definition of local food.
There’s some evidence that a popular understanding of local food is, at least in some places, coalescing around a 100-mile limit. A 2008 Leopold Institute survey of consumers throughout the United States found that two-thirds considered local food to mean food grown within 100 miles. Still, a variety of other definitions also persist. Sometimes local means food grown within a county, within a state or province, or even, in the case of some small European nations, within the country. All of those are perfectly valid ways of thinking about local. But they don’t have all that much to do with environmental costs and benefits.
In any case food miles don’t tell the whole story. “Food miles are a good measure of how far food has travelled. But they’re not a very good measure of the food’s environmental impact.”
That impact depends on how the food was transported, not just how far. For example, trains are 10 times more efficient at moving freight, ton for ton, than trucks are. So you could eat potatoes trucked in from 100 miles away, or potatoes shipped by rail from 1,000 miles away, and the greenhouse gas emissions associated with their transport from farm to table would be roughly the same.
The environmental impact of food also depends on how it is grown. Swedish researcher Annika Carlsson-Kanyama led a study that found it was better, from a greenhouse-gas perspective, for Swedes to buy Spanish tomatoes than Swedish tomatoes, because the Spanish tomatoes were grown in open fields while the local ones were grown in fossil-fuel-heated greenhouses.
However, what if water shortages require Spanish growers to install energy-intensive irrigation systems? And what if greenhouses in northern Europe were heated with renewable energy?
Perhaps it’s inevitable that consumers gravitate to a focus on food miles-the concept represents the last step before food arrives on our tables, the part of the agricultural supply chain that’s most visible to us. And indeed, all other things being equal, it’s better to purchase something grown locally than the same thing grown far away.
But a broader, more comprehensive picture of all the trade-offs in the food system requires tracking greenhouse gas emissions through all phases of a food’s production, transport, and consumption. And life-cycle analysis (LCA), a research method that provides precisely this “cradle-to-grave” perspective, reveals that food miles represent a relatively small slice of the greenhouse-gas pie.
The other clear result that emerges from these analyses is that what you eat matters at least as much as how far it travels, and agriculture’s overwhelming “hotspots” are red meat and dairy production. In part that’s due to the inefficiency of eating higher up on the food chain-it takes more energy, and generates more emissions, to grow grain, feed it to cows, and produce meat or dairy products for human consumption, than to feed grain to humans directly.
“Broadly speaking, eating fewer meat and dairy products and consuming more plant foods in their place is probably the single most helpful behavioural shift one can make” to reduce food-related greenhouse gas emissions.
Additionally, farmers who market locally are often relatively small in scale, and can more feasibly adopt environmentally beneficial practices such as growing a diversity of crops, planting cover crops, leaving weedy field borders or planting hedgerows that provide a refuge for native biodiversity, and integrating crop and livestock production. In short, the production practices matter a lot more than where the food was actually grown. If buying local also means buying with better production practices then that’s great, that’s going to make a huge difference.
So, is local food greener? Not necessarily. But look at the question from the opposite direction: if you’re a consumer interested in greener food, the local food economy is currently a good place to find it. By the same token, a farmer who sells in the local food economy might be more likely to adopt or continue sustainable practices in order to meet this customer demand.
Yet there are limits to this common-sense approach. In many areas, the climate is such that eating local, seasonal, field-grown produce would be a pretty bleak proposition for much of the year. Large concentrations of people live in areas not suited to growing certain staple crops; it’s one thing to forego bananas, but quite another to give up wheat. And population density itself works against relocalization of the food system. Most of the land within 100 miles of large cities such as New York is itself very built up; where will the farmland to feed us all locally come from?
Local food is delicious, but the problem-and perhaps the solution-is global.
Join us next week to read about an initiative started in Canada to address food miles and associated issues.
Parks, gardens, greenspaces, woodlands and local paths are ideal settings for a spot of green exercise. Perhaps you like to relax by taking a gentle stroll or by tidying up the garden. Maybe cycling to work starts the day on a high note or you look forward to evenings playing sport in the park.
Whatever pace you set yourself, being in the outdoors and getting active is great for your physical and mental health and well-being.
It’s recommended that adults do at least five 30-minute sessions of moderate exercise per week. For children, it’s at least 1 hour every day. Getting active outdoors could be an easy way for you to meet your target.
Learn about green exercise and its benefits.
Step to it
Parks and woods are a brilliant backdrop for your walk, cycle or jog. Soak up the surroundings and say hello to your neighbours as you get your daily dose of green exercise. You can probably reach your favourite local greenspace via a traffic-free route – so you can leave the car at home.
Active travel is another option if you struggle to set aside a specific time for outdoor exercise. Just choose to walk or cycle whenever you have to go somewhere and you’ll soon start to clock up the miles.
Discover your local path network today.
Stuck for what to do in the holidays? Check out Scottish Natural Heritage explore for a day for some great ideas.
Renowned for its rich cultural heritage and abundant wildlife, Aberdeenshire has something for everyone. This leaflet includes four possible itineraries for a day out in this breathtaking north-eastern region of Scotland.
Stroll along stunning stretches of sandy beaches, hike through wild landscapes or ramble atop dramatic cliffs. Aberdeenshire’s various nature reserves also offer unrivalled opportunities to spot a wealth of wildlife. Head to the region’s coastline to spot waders, seals and falcons, and glimpse red squirrels and the Scottish crossbill above your head in majestic ancient woodlands.
Or how about a spot of time travel? Dating back thousands of years, the region boasts an impressive 99 standing stone sites. Or take a tour through Scottish history via Aberdeenshire’s many castles and strongholds perched atop rugged cliffs, set in wide expanses of moorland and nestling within beautiful landscaped gardens.
All this and more awaits you here in Aberdeenshire. What are you waiting for?
Researchers have found that the closer people live to the sea, the healthier they tend to be.
However, it is not just those who live in rural seaside areas that benefit.
The biggest effect is actually felt by people living in coastal cities like Newcastle and Southampton, compared to inland ones like Birmingham and Leeds.
It was not sure how much of the benefit had to do with salty air.
It’s thought that it could be that the sea had a calming influence on people, or that those who lived near it had an added incentive to get out and about.
Information from the 2001 census compared the health of people in England living near the sea and far away, both in rural and urban areas.
In the census respondents were required to rate their health as ‘good’, ‘fairly good’, or ‘not good’. Nationwide, just over two-thirds (69 per cent) rated it as ‘good’.
However, those living within three miles (5km) of the coast were slightly more likely to rate their health highly, compared to those living more than 30 miles (50km) inland.
The effect extended to those living in the band 12 to 30 miles (20-50km) from the sea, although less strongly.
Researchers concluded “You don’t have to have a sea view to benefit.”
The results suggested what was important was how often people got to the coast, and how woven it was into their lives.
The study, published in the journal Health and Place, took account of variations in age and wealth between different areas’ populations.
It showed living by the sea most benefits poorer, city-dwelling people – those who, nationally, suffer the worst health and do the least exercise.
Good news for those of us lucky enough to live by the beautiful Aberdeenshire coastline. But even if you don’t, added incentive to go out and make the most of it!
In 1930s Britain, lidos and open air pools were incredibly popular. Following a poll of Stonehaven householders in 1933, the Pool was built the following year at a cost of £9,529 and opened on 4th June 1934. Stonehaven Pool was built to competition standards, which at that time were for races of 110 yards and multiples of that, so Stonehaven Pool was, and is, 55 yards long – just a touch over 50m and 20 yards – just over 18m – wide. It was emptied and refilled every few days – at that time, filling took only 2¾ hours. Even considering operating costs and loan charges, the first season brought a large profit. Customer feedback was not all positive and so, for season 1935, not only was the sea water circulated, filtered and disinfected, it was also heated!
During the Second World War, the Pool provided recreation – and showers – for locally-based troops. Following the war, it quickly retained its former glory, and became a major attraction for visitors from a wide area including Aberdeen. Despite changing holiday habits in the 1960s and 70s, and the Pool requiring considerable work, attendances were still healthy, with 65,000 passing through the turnstiles in 1975, although that was a season of many lost days due to technical problems.
For a few seasons, the Pool was actually filled with fresh water because of problems with the sea inlet; however seawater – one of the Pool’s main attractions – was in use again for 1982, and has been used ever since. The 1980s and 90s saw a decline in numbers, seasons were cut to 8 weeks, and by the mid-1990s the Pool was threatened with closure. This prompted the founding of a community group, The Friends of Stonehaven Open Air Pool, initially to lobby for its retention. The Friends of Stonehaven Open Air Swimming Pool is now a Scottish Charitable Incorporated Organisation (SCIO) and works in close partnership with Aberdeenshire Council. While the Council operates the Pool to the highest standards, the Friends maintain, enhance and promote the Pool.
Today the Pool is the focal point of Stonehaven’s summer and is an asset not only for the town and Aberdeenshire but also for Scotland. Only one other open air pool of the era still operates in Scotland, largely serving a local population, while the Stonehaven Pool is acknowledged as a 4-star Visitor Attraction and brings visitors from far and wide.
Saturday 14th July 1.30 – 3.30pm
WILD PLANT HUNT
Waterlogged and acidic peat makes life really tough on
a raised bog. Track down the wonderful wild bog plants
living on Portlethen Moss. We will uncover a few of
their survival secrets, encounter a carnivorous plant and
discover some natural dyes and pigments. Please wear
wellies for this wetland exploration. Booking essential.
MEET: at the Bruntland Road entrance to Portlethen
CONTACT: the Kincardine and Mearns Ranger on 07768
Carers Week is an annual campaign to raise awareness of caring, highlight the challenges carers face and recognise the contribution they make to families and communities throughout the UK.
Quarriers – Aberdeenshire Carer Support Service are hosting a series of promotional events during Carers Week, in partnership with Aberdeenshire Library and Information Service (ALIS). Libraries will display the winning entries from the recent adult carer poetry and photography competitions and Quarriers staff will be going on tour with the central and south mobile library buses to reach out to hidden carers in rural areas. A presentation booklet of the winning entries and details on where unpaid carers can get support will be available for the public to take away. If you would like to find out the routes on their tour please visit:
Mobile Library Central – www.aberdeenshire.gov.uk/media/22122/m1-central-mar-jun-2018.pdf
Mobile Library South – www.aberdeenshire.gov.uk/media/22123/m4-south-mar-jun-2018.pdf