by MrBill » Mon 10 Apr 2006, 05:50:15
$this->bbcode_second_pass_quote('Doly', 'F')ertilizers aren't a problem with peak oil. That's a classic doomer misconception.
Firstly, because usage of oil for essential things (and fertilizer certainly qualifies) will be the last thing to go. We'll do without all luxury items and some not-so-luxury before fertilizers could possibly be an issue.
Secondly, because hydrocarbons aren't such exotic molecules. They're actually very common. You can get fertilizers from plenty of other stuff (manure and plants, like in the old times). It's just that right now, oil is the cheapest raw stuff you can get them from. When oil gets more expensive, we will get fertilizers from other raw materials. It isn't a problem at all.
I disagree. It is not that there are no natural fertilizers, but that cost is also an issue. And the volumes you need are another. Yes, a few cows can produce enough manure for a few fields, but chemical fertilizers make up the balance needed.
Also, not all fertilizer is where you need it, so you have to transport it. As has been pointed out in The Survey of the World Economy it costs roughly 2-6 times more to buy fertilizers in Africa than to ship them from America for example.
The fields that need the fertilizer to feed the masses are in those countries that lack the infrastructure like roads to distribute it to where it is needed, so they go without, and suffer declining yields as a result. And as usual what does get imported creates a balance of payments problem; is subject to high import tariffs, which go the the government, not the people in most cases; and, of course, is affected by corruption at each level of payment and distribution.
And as 5/6th of the world's population live in developing countries, this is not just a rich world problem of substituting one good for another based on price and availability. So, it is not just a doomer argument, but fertilizer does not tend to get a lot of pulses racing even though it is necessary for raising pulses where a little dung will do you.
However, I agree that we do need to switch over to sustainable agricultural methods that rely more on natural fertilizers and other inputs, but then I doubt we can do that with even current, much less expected future, population loads. Trying to feed too many mouths with too few inputs even if we do switch to new technologies as you suggested.
The organized state is a wonderful invention whereby everyone can live at someone else's expense.