Natural food

摘要

From John Hawcock In her letter on lab-grown meat, Ingrid Newkirk makes a false comparison between eating meat and using tobacco, when she says that meat eaters, "like smokers trying to quit tobacco, find it very hard to give up the stuff" (24 September, p 39). Humans are omnivores by nature so meat is a natural part of our diet, whereas tobacco use is not natural. There is, however, a case to be made that some people consume more meat than is good for both their health and that of the environment. 35 Car cacophony From Kevin Mohi I find it difficult to understand why people are insisting that electric and hydrogen-powered vehicles must be made to sound like petrol and diesel-powered ones (Feedback, 1 October). There are millions of people whose lives have been blighted by traffic noise outside their homes.