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The U.S. corn belt has lost a third of its topsoil

smithsonianmag.com

11–20 of 278 posts

Re: The U.S. corn belt has lost a third of its topsoil

#11
post #2

Modern farming is not the bucolic system drawn on the food packages in the supermarket. It's an extractive industry little different from mining or oil drilling. In fact industrial food is largely eating oil, both in energy intensity itself and the use of oil as feedstock for fertilizers and food additives.

Sarah Taber covers this very well on her Twitter (even though she has a particular anti-dairy ax to grind)

Re: The U.S. corn belt has lost a third of its topsoil

#12
post #2

Modern farming is not the bucolic system drawn on the food packages in the supermarket. It's an extractive industry little different from mining or oil drilling. In fact industrial food is largely eating oil, both in energy intensity itself and the use of oil as feedstock for fertilizers and food additives.

Most important is nitrogen-based fertilizer, that can easily be produced from any kind of electricity. Most of the other stuff are minerals that are cheaply mined anywhere and won't run out for the next few thousand years.

The most important oil consumption is for driving farm implements, but that can easily be changed to rapeseed oil in the short term and other green energy in the long term.

So no cause for panic.

Re: The U.S. corn belt has lost a third of its topsoil

#13
post #2

Modern farming is not the bucolic system drawn on the food packages in the supermarket. It's an extractive industry little different from mining or oil drilling. In fact industrial food is largely eating oil, both in energy intensity itself and the use of oil as feedstock for fertilizers and food additives.

Sarah Taber covers this very well on her Twitter (even though she has a particular anti-dairy ax to grind)

There is more than one twitter account that comes up when you search for that name. I assume you mean this one (whom I happen to be following already and didn't realize it):

https://twitter.com/SarahTaber_bww

Re: The U.S. corn belt has lost a third of its topsoil

#14

These topsoil crisis stories have been running since the 1930s, and are still nonsense. Modern farming doesn't depend on soil nutrients. The soil is tested, then minerals and petrochemical fertilizers are added. The soil is basically a growing medium.

Funny because when I saw the headline it reminded me of the same crisis in the 80’s that never came to pass.

I sometimes wonder if these crisis stories are just written by journalists he need to meet their clickbate quota for the week in this Google Adsense driven industry… naaaaa

Re: The U.S. corn belt has lost a third of its topsoil

#15

These topsoil crisis stories have been running since the 1930s, and are still nonsense. Modern farming doesn't depend on soil nutrients. The soil is tested, then minerals and petrochemical fertilizers are added. The soil is basically a growing medium.

Wasn't the dust bowl caused by topsoil degradation?

That seemed like a very substantial crises for wide swaths of the country's population.

Re: The U.S. corn belt has lost a third of its topsoil

#17

These topsoil crisis stories have been running since the 1930s, and are still nonsense. Modern farming doesn't depend on soil nutrients. The soil is tested, then minerals and petrochemical fertilizers are added. The soil is basically a growing medium.

That is the problem in a nutshell

Re: The U.S. corn belt has lost a third of its topsoil

#18
post #2

Modern farming is not the bucolic system drawn on the food packages in the supermarket. It's an extractive industry little different from mining or oil drilling. In fact industrial food is largely eating oil, both in energy intensity itself and the use of oil as feedstock for fertilizers and food additives.

Maybe we shouldn't burn ethanol in cars. Maybe we shouldn't load up every food product with corn syrup.

if you think about it, it is ridiculous that we burn food as fuel in our cars and add unhealthy amount of sugar syrup into everything

Re: The U.S. corn belt has lost a third of its topsoil

#19
post #2

Modern farming is not the bucolic system drawn on the food packages in the supermarket. It's an extractive industry little different from mining or oil drilling. In fact industrial food is largely eating oil, both in energy intensity itself and the use of oil as feedstock for fertilizers and food additives.

I'm not worried about the soil, I'm worried about the water. The Ogallala Aquifer is shrinking. The more it shrinks, the more there will be compaction preventing it from refilling to previous states. We can always grow food in water but getting clean water will be an increasingly difficult task. Look how bad it already is in CA.

Re: The U.S. corn belt has lost a third of its topsoil

#20

We're ~60 years from running out of topsoil globally if we continue degrading it at the current rate: https://www.scientificamerican.com/article/only-60-years-of-...

This claim has been contested

https://ourworldindata.org/soil-lifespans#:~:text=But%20the%....

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