AP FACT CHECK: Unraveling the mystery of whether cows fart
By CALVIN WOODWARD and SETH BORENSTEIN
an hour ago

WASHINGTON (AP) — Let’s clear the air about cow farts.

In the climate change debate, some policymakers seem to be bovine flatulence deniers.

This became apparent in the fuss over the Green New Deal put forward by some liberal Democrats. More precisely, the fuss over an information sheet issued by the plan’s advocates.

With tongue in cheek or foot in mouth, depending on whom you ask, the statement’s authors said that despite the plan’s proposals for strong limits on emissions over a decade, “we aren’t sure that we’ll be able to fully get rid of farting cows and airplanes that fast.”

Airplanes don’t fart. But cows?

Exasperated by merciless mocking from Republicans on this matter, Democratic Sen. Debbie Stabenow of Michigan lectured the Senate majority leader, Mitch McConnell, on the floor of the chamber last month.

“The Republican majority leader said that we want to end air travel and cow farts,” Stabenow said. “By the way, just for the record, cows don’t fart. They belch.”

The Associated Press surveyed global experts on global warming on this question, as well as an author who wrote the definitive science book on gassy animals, which comes with funny pictures.

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THE FACTS: Cows fart. That contributes to global warming. But cow burps are worse for the climate.

“Cows are pretty disgusting eaters, with methane coming from both ends,” said Christopher Field at the Stanford Woods Institute for the Environment. “But most of it comes from burping.”

Field cited the “classic quote from the technical literature” on the topic: “Of the CH4 (methane) produced by enteric fermentation in the forestomach 95% was excreted by eructation (burp), and from CH4 produced in the hindgut 89% was found to be excreted through the breath.’”

In a nutshell, belches are bad news.

At Tuscia University in Viterbo, Italy, environmental scholar Giampiero Grossi said methane emitted by ruminant livestock accounts for about 5.5% of the greenhouse gasses that come from human activity. More than 70% of livestock emissions are from cattle, he said.

“Ruminants are a significant source of methane,” which traps more heat than carbon dioxide but doesn’t last as long in the air, said Kristie Ebi, director of the Center for Health and the Global Environment at the University of Washington in Seattle. “The belches have to do with digesting their food” in the stomach compartments, not intestines, and that fermentation produces methane.

Warming from the burning of fossil fuels is roughly 10 times to 17 times greater than warming caused by livestock burping and farting, Field said.

GASEOUS POLITICS

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WHAT FARTS, WHAT DOESN’T?

“Does It Fart?” a book by Dani Rabaiotti of the Zoological Society of London and Virginia Tech conservationist Nick Caruso, answers the question it poses about dozens of species.

Millipedes fart, no doubt discreetly.

Several species of herring communicate with each other that way. If you startle a zebra, says the book, it will fart with each stride as it runs away. Flatulence signals a baboon is ready to mate.

For the Bolson pupfish, found in Mexico, it’s fart or die. They feed on algae that make them buoyant, easy prey near the surface. Farts sink them to safety. Similarly, manatees may let loose when it’s time to dive deeply.

Whale farts are, of course, epic.

Birds and most sea creatures don’t. Clams clam up, though they’ve been known to throw up.

The jury is out on spiders: More research is needed.
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And for the record, says this authority on the animal kingdom’s ruder moments, “Yes, cows do fart.”

https://apnews.com/9791f1f85808409e93a1abc8b98531d5

Quote: Cincinnatus wrote in post #2

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Has anyone done a study of how often and how much AOC farts?

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Flatus content could be added to one's Social Credit Score along with Carbon Foot print. I'm certain China has an app for that.