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Want To Fight Climate Change? Stop Cows From Burping
sciencehabit writes: A simple supplement to a cow's feed could substantially decrease a major source of methane, a planet-warming greenhouse gas, a new study suggests. Each year worldwide, the methane produced by cud-chewing livestock warms Earth's climate by the same amount as 2.1 billion tons of carbon dioxide, a little more than 4% of the greenhouse gas emissions related to human activity. That makes cows tempting targets for methane reduction efforts. In a new study, researchers added the chemical 3-nitrooxypropanol, also known as 3NOP, to the corn-and-alfalfa-based feed of 84 milk-producing Holsteins and monitored their methane production for 12 weeks—the largest and longest such trial of its type in lactating cows, the scientists say. For cows whose feed included 3NOP, methane emissions dropped, on average, by 30%.
... this measure doesn't involve:
So how is that any fun, I ask you?!?
Because all the 1.2% savings that can be made add up to make a large difference. If we find eight ways to make 1.2% savings across different areas then that is nearly a 10% reduction in the human generation of greenhouse gases. The human race isn't limited to finding just one method to solve the climate change problem. If we make small savings across the board with cost-effective, manageable solutions then we don't have to solve the problem with a single grand gesture that ends up costing a lot of money.
And what are the problems that you envisage implementing this? The article says:
Larger tests will be needed to see if detrimental effects crop up over the long term
I find it interesting that you have already found out what the problems are before scientists have managed to do any studies.
The whole idea that cow burps could produce enough carbon to destroy the planet is why so many people deny even the possibility that emitting industrial quantities of carbon can change the climate. It just makes the whole issue sound ridiculous. Methane may be 20 times as powerful a greenhouse gas as CO2, but because of its reactivity it does not persist in the atmosphere in the same way.
There's some insight in that comment-- compared to the 40 trillion kilograms of carbon dioxide emitted into the atmosphere by combustion of coal, the amount of warming by cows is small. However, although it is smaller effect, it is not negligible contributes. According to the original article:
Each year worldwide, the methane produced by cud-chewing livestock warms Earth’s climate by the same amount as 2.1 billion tons of carbon dioxide, a little more than 4% of the greenhouse gas emissions related to human activity.
So, here's a way to affect 4% of the problem (not solve, but affect), with no effect on standard of living whatsoever-- it's a small step, but with essentially no cost: cow methane production is of no economically value.
What bothers me, however, is that the article is talking about burps, while the problem is cow emissions. Not all cow methane emissions are burps.
http://www.geoffreylandis.com