https://arstechnica.com/tech-policy...on-emissions-inflated-crop-prices-20-30/

sample quote

The researchers studied the issue from several angles, including examining how much additional land was needed to grow the corn, how much extra fertilizer was used, what the combination of the two did to water quality, and how crop prices changed in response to the RFS. The team looked at those changes between 2008—the year after the law requiring the standard was passed—and 2016.
(snip)
After the fertilizer was applied, it released a significant amount of nitrous oxide, a potent greenhouse gas that warms the atmosphere 300 times more than the same amount of carbon dioxide over 100 years. The researchers’ estimates of the carbon impact of the fertilizer are probably low, too, since the authors didn’t calculate how much additional pollution the manufacturing process released or the extent to which degraded water quality in downstream waterways released more greenhouse gases.

end quote

I have read a lot about NOx over the last 30 years,
and the above quote’s statement that NOx
“ warms the atmosphere 300 times more than the same amount of carbon dioxide”
is the first time I have seen that claim made.

It’s in here…’almost 300 times ,,,effect of Carbon Dioxide’
https://www.epa.gov/ghgemissions/overview-greenhouse-gases

Your tax dollars at work...typical of a legislative boondoggle fueled by lobbyist $$$.
You can rest assured that the politicians who forced it on us are also invested in that market.

Sounds to me the study chose the wrong crop to make ethanol from. There are a lot better choices, some that even clean the soil.... cattails. Cattails can be planted in sewage fields and will clean the environment around them and actually grow 3 times the normal size. Sugar beets are another better selection than corn. Sounds like the study was paid for by the oil industry. I've experienced the difference between the exhaust of gasoline cars vs. ethanol cars; unbelievable difference in cleanliness. Walking down busy streets in Sao Paolo, you can still breathe the air, no smog, no choking on fumes. There are many benefits of ethanol vs. gasoline.

The study didn't choose what crop to use, it studied what was being used and it's effects.

I didn't see what percentage of green house gases made each year world wide come from the U.S
Me think we produce a lot less (80%+) than China does, let alone what the rest of the world makes
The last NASA study by them in 1990 I saw showed the air entering the U.S. on the west coast was 20% dirtier that it was when it left going towards Europe and the Scandinavian countries We clean up the atmosphere, we don't pollute it

When I visited China in 1981 their official coal production was 600,000,000 US “short tons”
but their Mining officials admitted to us when drunk on sorghum liquor that it was really about half that.
At every mine visit the local officials would get drunk “entertaining” us foreign visitors.

Today China produces more than 4,000,000,000 short tons of coal,
and still imports additional coal.

China and India waited until the last hours of the recent Scotland Greenhouse Gas treaty meeting,
then demanded (and eventually got)
an exemption to keep increasing coal production until 2040

China uses coal to produce solar panels and rare earth minerals.
Many factories in China have their own private coal fired electric generating plant beside the factory.

Right now, trainloads of Russian coal are arriving in Germany.

That is a new page, apparently written in 2021 by the present administration.

sample quote

Nitrous Oxide Emissions

Properties of Nitrous Oxide
Chemical Formula: N2O
Lifetime in Atmosphere: 114 years
Global Warming Potential (100-year): 2981
In 2019, nitrous oxide (N2O) accounted for about 7 percent of all U.S. greenhouse gas emissions from human activities. Human activities such as agriculture, fuel combustion, wastewater management, and industrial processes are increasing the amount of N2O in the atmosphere. Nitrous oxide is also naturally present in the atmosphere as part of the Earth's nitrogen cycle, and has a variety of natural sources. Nitrous oxide molecules stay in the atmosphere for an average of 114 years before being removed by a sink or destroyed through chemical reactions. The impact of 1 pound of N2O on warming the atmosphere is almost 300 times that of 1 pound of carbon dioxide.1
(snip)
Nitrous oxide emissions in the United States have remained relatively flat between 1990 and 2019.

Nitrous oxide emissions from mobile combustion decreased by 60 percent from 1990 to 2019 as a result of emission control standards for on-road vehicles.

Nitrous oxide emissions from agricultural soils have varied during this period and were about 9 percent higher in 2019 than in 1990, primarily driven by increasing use of nitrogen fertilizers.

end quote

an article worth a read whatever your viewpoint

https://www.spiked-online.com/2022/02/15/why-global-warming-is-good-for-us/