Tag: climate

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Prairie plants
Prairie plants
Prairie plants

One utterly predictable consequence of climate change is that the price of northern farmland will rise as growing regions shift north.

Tobias Buckell yesterday shared a report that just this sort of price shift is now occurring—interesting to me because this result is not merely predictable: I predicted it my own self, way back when I was in high school.

Global warming was still pretty speculative then (in the 1970s), but people were already talking about the greenhouse effect and trying to figure what the result would be. At the time, I was mainly thinking about the geopolitical implications of  shifting the growing regions north—how things would change if Canada and the (then) Soviet Union were suddenly way more productive of food, while places like the United States, China, and France suddenly less so.

What I discovered, though, was that those northern regions aren’t nearly as fertile as places like Illinois, where 8,000 years of tall grass prairie left an incredibly thick layer of rich soil.

No matter how perfect the climate is, Saskatchewan is not going to produce the bushels per acre of Illinois or Kansas. Their soil is not only less fertile, it’s also much more fragile than the soil of the tall grass prairies. The fertile layer isn’t as deep, so the land must be plowed with greater care, and it will in any case be more quickly depleted.

I’m sure there’s a lot more and better data available now than there was back then, but I doubt if it changes the fundamentals. Shifting growing regions means winners and losers, but it also means less total food production.

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One of the things I try to do in my fiction is show any collapse scenario as a process.

Your standard “if this goes on” story is all about looking ahead to see the result of current trends. But trying to see the endpoint of climate change, peak oil, habitat destruction, environmental degradation, or any similar process is going to be misleading. There is no endpoint—things keep going on.

I think the destruction wrought by Sandy is a good example. I’ve read a lot of stories set in a world where climate change has inundated the coasts. What aren’t nearly as common are stories set in the world we’re approaching: A world where the coasts are inundated only 1% of the time (or, a bit later, 2% of the time). A world where we see a 100-year storm every 8 or 10 years. A world where all our infrastructure spending is going for repairs, and yet we keep falling behind.

I say this is a world we’re approaching, but we may have already reached it. How many 100-year storms can you have in a decade before you have to admit that it’s not just a statistical anomaly, but rather is the new reality?

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Weather is a local phenomenon. Oh, weather systems can cover half a continent, but the weather on the north edge of a huge weather system will be entirely different from the weather at the south edge. And any particular spot on the planet sees a unique sequence of weather systems, somewhat different from those seen by other nearby spots, and entirely different from those seen by more distant spots.

This is why I’ve always been completely baffled by celebrity groundhogs.

It makes no more sense to pay attention to the shadows of distant groundhogs than it makes to pay attention to the forecasts of distant meteorologists. In fact, it makes much less sense—a distant meteorologist has the skills and technology to produce a useful forecast for your local area. But I have no more interest in what some celebrity groundhog sees when he emerges from his burrow than I have in the local weather report for Hong Kong or Timbuktu.

What matters is what your local groundhog sees when he emerges from his burrow this morning! Pay no attention to the shadows of distant groundhogs, whatever their celebrity status!

Hereabouts, it’s rather foggy, assuring us of an early spring.