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A comment on Replacing butter with vegetable oils does not cut heart disease risk (2016). Parent comment

Re:Replacing butter with vegetable oils does not cut heart d... by thatcat on Monday February 13, 2017 @06:47AM (#13634598)
Yea, I agree. Cows also live about 20 years, so even not breeding cows wouldn't solve this problem. The morality of eating butter is kind of a moot point when all the production mechanisms are already in place and they aren't flexible.

A possible solution would be methane fixing bacteria (methanotrophs) in the guts of cows or in the ocean where > 75% of the current concentration atmospheric methane originates. The ocean also contains a significant amount in solid form that gets released as temps rise. [0]

[0]http://www.washington.edu/news/2014/12/09/warmer-pacific-oce...

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Re:Replacing butter with vegetable oils does not cut heart d... by philipcristiano on Monday February 13, 2017 @08:16AM (#13634957)
Cows can live that long but after production drops (about 4 years) they will be sold off for beef. Not breeding cows would definitely help.

https://en.wikipedia.org/wiki/Dairy_cattle lists a few sources for the 4 years figure.

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