|| 网站首页 | 英语听力自主训练中心 | 英语学习知识中心 | 英语学习音频资源 | 英语学习视频资源 ||
|作者：马文英 文章来源：China Daily 点击数：13 更新时间：2019/12/19|
Meat is crucial for feeding the planet, leading scientists have said, as they warned it is not more environmentally-friendly to go vegan.
Experts from the University of Edinburgh and Scotland’s Rural College said farmers were increasingly feeling demonised by the unsupported ‘meat is evil’ claims being promoted by environmental lobbyists.
Speaking at a panel in central London, they argued that meat was critical for the physical and mental health of children, particularly in developing countries, and said that moving away from livestock farming would not improve land use.
Prof. Geoff Simm, Director of Global Academy Agriculture and Food Security at the University of Edinburgh, said: “I think (livestock farmers) do feel they are being demonised.
“Often the argument is made that going vegan would minimise land use, and the modelling studies that have been done demonstrate that that’s not the case.
“We feel that while livestock production has a range of economic, social and environmental costs and benefits, the costs have perhaps been receiving far more attention recently than some of the benefits.
“Meat has massive social benefits. It’s an important source of dietary protein, energy, highly bioavailable micronutrients, even small amounts of animal-sourced food have a really important effect on the development of children, in the developing world on their cognitive and physical development and they are really important.”
Prof Mike Coffey, from Scotland’s Rural College, added: “It’s completely unnecessary to go vegan.
“If everybody went vegan it would be devastating for the UK environment. Animals bred for food help boost biodiversity.”
Researchers are currently attempting to breed more environmentally friendly cattle, which grow faster and eat less, which could further reduce the sector’s carbon footprint by reducing the amount of methane released by cows.
Prof Coffey said that the difference in methane emissions from best and worst cattle was about 30 percent and that if all UK farmers used the most efficient animals this could reduce carbon emissions by nearly a third.
But Prof Coffey said the next stage will be trying to measure the methane given off by different breeds of cattle to find which are the lowest emitters.
Prof Coffey said that soon shoppers could be able to check meat labels to find out how much environmental impact their food has had.
He added: “My expectation is that at some point in the near future there will be product labels that relates to the efficiency or carbon impact of the food.”
Professor Andrea Wilson, also of Edinburgh University, said more research was needed into the impact of veganism.
She added: “We know a lot about the livestock sector because people have looked at it. We actually know very little about the vegan sector.
“The danger is we demonise one and jump too quickly to the other.”
|| 设为首页 | 加入收藏 | 联系站长||