In today’s post we launch a new series of posts, relaunch our Facebook Page and announce a contest for an autographed copy of Keeping Chicken’s with Ashley English. We’ll start with the post and the new series as I believe that’s what most of you are here for. 🙂
To see all of the posts in this series, click here. Be sure to check the comments out as well since many of them are blog posts in their own right – complete with maps, tools, resources and eloquent food for thought.
Re-Imagining 100-Miles
Dana and I went to High School together. We never dated – we were simply friends through those years, college and as we both started our careers. There’s not much from those times that relates to this post except for the fact that we’d both gleefully share that we were computer lab partners and Dana teased me (as a friend, not a bully) for being clever with computers.
She would call me Einstein.
I’m rather proud of being a geek and, despite struggling with school, I really am a geek. And the next series of posts are going to reflect that.
I’ve been spending a lot of time thinking about the 100-Mile diet lately. We aren’t nearly entirely local although we love many of the ideals of being so. I also know that the idea is not necessarily to be taken literally (it always did make me chuckle in a good way that a couple of Canadians Championed an Imperial measurement for local). But I do like to think about these things and how they could be useful in our house. I also like to create maps, formulas and spreadsheets to represent a lot of the ideas that are locked in my head.
Over the next few days I want to share posts that are not meant to attack the 100-Mile Ideal. I would love to start some conversations and let each draw their own conclusions. I also have some ideas on how we might imagine – and re-imagine the 100-mile measurement that seems very straightforward. I’ll worry about the math but I’ll share the calculations for those who are interested. For those scared of math, we’ll use a lot of visuals.
For today’s post, let’s examine the basics of how to measure the 100 mile diet from the spot you are sitting.
Option 1 – 100 Mile Radius
Find yourself on a map, draw a dot 100 miles from your current position. This represents a 100-mile radius (the distance from you to the outside of the circle). Draw a circle that uses your position as the center and the outside are 100 miles from the center. This is the way the most of the websites and articles I’ve read does so.
The irony of this option is that your circle is actually 200 miles across. Most food does not come from a single source so if you are getting veggies from a farm that’s 100 miles north and fruit from one that’s 100 miles south, your dinner has travelled 100 miles twice. This may sound like silly symantecs, but the impact is profound as will be explained later.
Option 2 – 50 Mile Radius
Draw a circle that’s 50 miles from where you sit. This one is 100 miles across (with you in the middle point). If you live in a large city, with a large geographic center, this can be very restrictive.
Comparing Areas
Ultimately, food is not grown in a line – it takes space to grow (regardless of how far it travels). Of course a larger area provides more food options – it also creates options for your food to take longer and drive further to get to you.
It’s important to note that in the options above the radius doubled – but the area and potential transport swelled by far more than 2. I had to use Google to remember that the area of a circle = Pi (3.14) * Radius * Radius (Pie-R-Squared). A circle with a 1-inch diameter has an area of 3.14 square inches while a 2 inch diameter creates a diameter of over 12.5 inches.
A circle with a diameter of 100 miles (option 1) has an area of 31,415.93 square miles. Option 2 has an area of 7,853.98 – half the diameter equals 4 times less area.
The image below is to scale and shows that despite having half the diameter, on circle is far larger than the other:
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