通过实验室培植出来的肉类或许更容易被接受。不要觉得这是科幻片里的情节,通过牛的干细胞,实验室已经能够培植出牛肉了。专家们表示,尽管实验室培植肉类的提案还没有完全的把握,然而,希望未来实验室培植的肉类能既能满足人们的味蕾又能满足更大的需求量。
If they can’t get lab meat right - or they can’t produce it cheaply enough - the only option for many of us may be vegetarianism. Today, most of us derive about 20% of our calories from meat, eggs and dairy. By mid-century we’ll need to cut it to 5%, given the finite amount of water and land available for agriculture.
如果实验肉类不合符人类标准,或是造价高昂,那么,另一个选择就是加大素食在人类日常食物结构里的比重。当今,人体所需能量中,百分之二十是来源与肉类、蛋类以及奶制品。但在中世纪,人体能量中,只有百分之五十靠肉类、蛋及奶制品提供的。其余的能量补给靠的是水喝素食的配搭。
For the poor, that means meat may become too expensive to eat. Even for the better off, it will become a luxury item. Environmental, health and economic concerns will make vegetarianism an increasingly popular option for many of us, and many more will restrict meat eating to feasts and celebrations like Christmas.
在未来,穷人可能买不起肉,只能减少甚至不吃肉。肉变成了奢侈品。处于对环境、经济和健康上的考虑,消费素食会越来越普遍,而作为稀缺食品的肉类也只能在圣诞节之类的节庆时候才能供人们享用。
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