The Future of Meat

[Music]

[Laughter]

[Applause]

think about what you ate last night for

dinner

and the night before no unless you’re

part of the five percent of vegetarians

or vegans that make up the united

states’s population

i assume you pictured some type of meat

on your plate

let’s take a look back a little farther

than your dinner two nights ago

here i have a couple of friends homo

erectus and homo sapiens

while their ancestors may have survived

off of herbivorous diets

the development of their brains required

more hearty meals

meals consisting of a dinner plate very

similar to the one that came to mind

just a moment ago

so while meat did play a necessary role

in our own evolution

and was critical in the lifestyles of

our early ancestors

we may no longer have that same luxury

let’s play a game of spot the difference

the picture on the left depicts the

earth’s landscape

approximately 2.5 million years ago when

homo erectus’s earliest ancestors were

roaming the land

hunting whatever meat they could find

this vast and relatively untouched

terrain carried our ancestors to the

beginning of their farming endeavors

following the ice age around 14 000

years ago the neolithic revolution

occurred

and moved our timeline into an era of

agricultural settlements and early

civilization

erectus left behind hunting and

gathering and through the innovation of

more sophisticated stone tools

they established the beginnings of

domestication

fast forward a couple thousand years

farming has evolved

the simple addition of one word results

in what we have now

factory farming what exactly is factory

farming you might ask

well given the changed landscape the

method of obtaining meat seems like it

would be

slightly different than before doesn’t

it

otherwise known as industrial livestock

production or intensive animal farming

factory farming has grown to be the most

prominent method of meat production

and constitutes 99.9 percent of all

animal

products in the united states alone

thus while an agricultural revolution

marked the shift from foraging to

farming

more recent industrial revolutions have

allowed for the true revolutionization

of farming

one that we may have to rethink

our meat-centric diets today not only

require heavy-duty assembly lines and

large-scale factories to keep up with

hungry consumers

but an increasing desire for profit on

the producing end has in turn

contributed to an earthly disaster

global warming now we reach a point

where i’d like to make a short

disclaimer

i’m not a vegetarian i joined the

majority of you

who imagined a nicely seasoned piece of

meat at the beginning of this talk when

asked

to think about last night’s meal so

while factory farming is primarily given

a negative connotation

one to be associated with animal cruelty

or ethical virtues i will not be focused

on either of these throughout the

remainder of this talk

rather the impacts of climate change are

growing ever more detrimental

between 1990 and 2010 carbon dioxide

emissions rose 42 percent

this statistic is just one of many that

points the effects of industrialization

but within this realm of industry

the second largest greenhouse gas

contributor is the agricultural industry

through a multitude of factors including

deforestation water wastage and rumen

fermentation

factory farming is largely responsible

for these greenhouse gas emissions

the amazon rainforest spans across eight

south american countries

making it the largest rainforest in the

world

beginning in the late 1970s however

cattle ranching established itself as

the rainforest leading cause

of destruction as the general demand for

livestock has increased throughout the

years

the ranching and livestock industry has

become the fastest growing agricultural

sector in the world

and today cattle ranching accounts for

80 percent of the rainforest

deforestation

if this trend continues we will suffer

from consequences

not only at a local level but globally

the amazon rainforest alone provides

more than 100 billion metric tons of

carbon

for maintaining the world’s climate and

for comparison

that’s more than 5 billion times our

world’s population

in effect the results of clearing the

entire rainforest would be similar to

that

of the world’s population doubling

in addition to requiring an immense

amount of land resources factory farming

also necessitates water usage for

cleaning their factories

with regard specifically to the meat

sector of the agricultural industry

factory farming necessitates massive

amounts of water

to produce just one pound of meat and

how massive

is massive exactly 2400 gallons

that’s more than 50 bathtubs full all

right now

it gets better this is probably what

you’d buy at the grocery store

three pounds of meat but how much of

this do we consume

a week a year

its effects add up to this and more

but hey it’s okay we’re only part of the

problem

not only are humans a contributor to the

causes of global warming

but the animals themselves pose an even

greater threat to our environment

as more than 50 of agricultural

greenhouse gas emissions

are released as direct and indirect

byproducts of manure

and enteric fermentation the process of

rumen fermentation by which

animals convert food into energy

releases carbon dioxide and methane into

our atmosphere

this equation and these terms might seem

quite complicated

but to simplify it this is all you

really need to know

this problem however is specific to the

traditional method of producing meat

you see take away the animals take away

the fermentation

as our society is becoming increasingly

mechanized and advancements are being

made in technology

the rise of antibiotics vaccines

pesticides and even new transportation

routes have all contributed to our

capability to mass-produce meat for

distribution

knowing this let’s not allow

modernization to serve as our excuse for

moving forward

rather let’s allow it to shift us away

from eating meat

traditionally statistically speaking

somewhere around five percent of the

people in this room are consumers of the

meat-free diet

if i were to have given this talk 50

years ago however

this statement would have applied to

only one percent of you

but even five years ago a harris poll

national survey

found the percentage of vegetarian

american adults to remain just under 3.5

percent

the slow growth of our country’s

vegetarians has done little to remedy

what is a larger global crisis

climate change the united states

currently stands among the top consumers

in the meat industry with consumption

rates significantly higher than the rest

of the world

let’s take a look at one example

although pork and beef production has

remained relatively constant since 1970

between 1970 and 2018 chicken production

soared and is now 3.5 times higher than

the world average

physically requiring less space to raise

chicken has become a popular choice of

factory farmers

and constitutes 99.9 of all the chicken

products we eat today

what’s more in less economically

developed countries let’s take

ethiopia as the extreme example we see

an even greater disparity

the united states is consuming poultry

meat at almost 100 times more than

ethiopia

emphasizing our own country’s

accountability in the larger issue

of climate change so

america as part of the problem we must

also be part of the solution

there are those of you who already

choose to drink soy milk over cow’s milk

for whatever preferential reasons

so why not make a change to other parts

of your diet as well

in the past few years companies like

impossible burger and beyond meat have

emerged and marketed their plant-based

meat products

as their future of protein requiring

less land less water

and less energy to produce ultimately

releasing 90 percent fewer greenhouse

gas emissions made from plants such as

peas soy wheat and rice plant-based meat

has developed a reputation for being a

more sustainable alternative to

traditional meat

of course there are obstacles that

plant-based meat producers currently

face

in order to keep the same nutritional

value as conventional meat

products like the impossible burger and

beyond burger patties require much more

processing than regular ground beef

patties do

additionally while the search for new

protein sources from materials including

fungi and algae suggest possibility for

expanding the plant-based meat market

it also implies the difficulty with

which manufacturers may need to adjust

their processes

all of which are still more expensive to

both producers

and consumers than traditional meat

products

for those of you who are who may be

reluctant to embrace the concept of

plant-based meat and

propose the valid argument that it is

not real meat

the near future brings with it hopes of

a promising solution

another targeted area of study has been

the development of

animal cell-based meat known as clean

meat

cell-based meat is grown from connective

tissue

fat cells and muscle cells all of which

are grown in the lab

though still in its early stages this

process has the potential to further

transform

our roles as consumers of meat

in addition to organizations like the

good food institute which seeks to bring

together scientists entrepreneurs and

even students to contribute to its cause

companies like memphis meats and finless

foods are among the first

to experiment with cell-based meat

following a process similar to this

these companies begin by sourcing a

small sample of self-renewable cells

from their desired source then providing

the necessary nutrients for these cells

to grow

following proliferation these cells are

structured to form

muscle and connective tissue and culture

before being distributed

to producers and consumers alike

by eliminating the need for factory

farming clean meat lives up to its name

through both getting rid of the effects

of the dirty slaughtering

of factory farming as well as getting

rid of the

dirty world that we are creating

otherwise

the research currently being conducted

on self-renewal and differential stem

cells and culture

has opened up new opportunities for the

meat industry in the past few years

and presents continued hope for the

future

just a couple of weeks ago memphis meets

announced their latest funding round of

161 million dollars surmounting to a

total of over 180 million dollars from

investors like

softbank group bill gates richard

branson and others

additionally the usda and fda have

agreed to jointly regulate the clean

meat industry

in our bacteria and virus-filled world

clean meat provides literally cleaner

meat

and even the government has recognized

this

just think about it if clean meat had

been globally implemented in history

it would have been impossible for the

avian and swine flu viruses to have been

transmitted to humans

in today’s world the prevention of such

animal-to-human transmission of viruses

could save us furthermore

the cultures that these cells are grown

in can

be modified to include specific genomes

or

nutrients designed to make the meat

richer in vitamins that we may otherwise

be lacking

effectively making clean meat a way to

address both the preventatives

and the possibilities

whatever it may be this period of rapid

development

leads us to reimagine what our future

dinner plates may look like

what our future world may look like

available land for agricultural use is

finite

that’s already been established but the

number of the cells in this world is

seemingly infinite

and along with this comes infinite

possibilities

a stem cell technology is becoming more

accessible and more efficient

it is possible that the future brings

with it

the potential to produce to use both

cells animal stem cells and plant stem

cells in the production of

cell-based food in the next few years it

will be cell-based meat

in the next few decades will be

cell-based meat and vegetables

will we wait for these answers and

imagine our world’s future though

let’s not forget the world isn’t waiting

so next time you stop into dunkin donuts

try out their beyond sausage breakfast

sandwiches

craving a burger burger king’s got you

and it’s impossible whoppers have got

our climate

thank you

[Applause]

you

[音乐]

[笑声]

[掌声]

想想你昨晚和前一天晚上吃了什么

你盘子里

的肉 让我们回顾一下

比你两天前的晚餐更远的

地方 我有几个朋友

直立人和智人

虽然他们的祖先可能已经

从食草饮食中幸存下来

他们大脑的发育需要

更多丰盛的

饭菜 由一个与刚才想到的非常相似的餐盘组成,

因此虽然肉类确实

在我们自己的进化中发挥了必要的作用,

并且对我们早期祖先的生活方式至关重要,但

我们可能不再拥有同样的奢侈品,

让我们一起玩吧 找不同的游戏

左边的图片描绘了

大约 250 万年前的地球景观,当时

直立人的最早祖先在

这片土地上

漫游 在大约 14000 年前的冰河时代之后,我们的祖先在这片广阔且相对未受破坏的土地上找到了任何可以找到的肉

,新石器时代的革命

发生了

,并将我们的时间线带入了

农业定居点和早期

文明

直立人离开的时代 在狩猎和

采集之后,通过

更复杂的石器的创新,

他们建立了驯化的开端,

快进了几千年,

农业已经发展

了一个简单的词,导致

了我们现在的

工厂化

农业你可能会问什么是工厂化农业

鉴于环境的变化

,获取肉类的方法似乎与

以前略有不同

,否则它

不是被称为工业

畜牧生产或

集约化畜牧业吗? 所有

动物的

仅在美国的产品

因此,虽然农业革命

标志着从觅食到农业的转变,但

最近的工业革命已经

实现

了农业

的真正革命,我们今天可能不得不重新

考虑以肉类为中心的饮食,不仅

需要重型装配 生产线和

大型工厂跟上

饥饿的消费者,

但生产端对利润的日益增长的渴望

反过来又

导致了一场地球灾难

全球变暖现在我们已经到了一个

我想做一个简短的

免责声明的地步

不是素食主义者 我

和你们中的大多数

人一样,

在本次演讲开始时,当被

要求考虑昨晚的一顿饭时,他们想象了一块调味很好的肉,所以

虽然工厂化养殖主要被赋予

与虐待动物或道德相关的负面含义

接下来的演讲中,我不会关注其中任何一个优点,

而是气候变化的影响是

g

在 1990 年至 2010 年期间,划船的危害越来越大 二氧化碳

排放量上升了 42%

这个统计数据只是指出工业化影响的众多数据之一,

但在这个工业领域内

,第二大温室气体

贡献者是农业

,其中包括森林砍伐在内的多种因素

水资源浪费和瘤胃

发酵

工厂化养殖是

造成这些温室气体排放

的主要原因 亚马逊热带雨林横跨八个

南美洲国家

,从 1970 年代后期开始

成为世界上最大的热带雨林 多年来,对牲畜的总体需求

不断增加

畜牧业和畜牧业已

成为世界上增长最快的农业

部门

,如今,畜牧业占

热带雨林砍伐的 80%

如果这种趋势持续下去,我们将遭受

损失 rom 的后果

不仅在地方层面,而且在全球范围内

,仅亚马逊雨林就提供

了超过 1000 亿公吨的

来维持世界气候

,相比之下

,实际上是我们世界人口的 50 亿多倍

,清除

整个热带雨林的结果将

类似于世界人口

翻倍 除了需要

大量土地资源 工厂化养殖

还需要用水来

清洁工厂

,特别

是农业工业的肉类部门

工厂化养殖需要

大量的水

来生产 一磅肉

有多大 正好 2400

加仑 50 多个浴缸

好了 现在

变得更好了 这可能是

你在杂货店买的东西

三磅肉

但是我们

一周吃多少 一年

它的影响加起来甚至更多,

但嘿,没关系,我们只是其中的一部分 这个

问题

不仅是人类

造成全球变暖的原因,

而且动物本身

对我们的环境构成了更大的威胁,

因为超过 50 种农业

温室气体排放

物作为

粪便

和肠道发酵的直接和间接副产品释放出来。

动物将食物转化为能量的瘤胃发酵将

二氧化碳和甲烷释放到

我们的大气中

这个方程和这些术语可能看起来

很复杂,

但为了简化它,这是你

真正需要知道的

所有问题,但它是特定于

传统的肉类生产方法

你会看到带走动物

带走发酵

随着我们的社会变得越来越

机械化和技术进步

抗生素疫苗

杀虫剂的兴起甚至新的运输

路线都有助于我们

大规模生产肉类以供

分销

知道这一点 让我们不允许

现代化 o 作为我们前进的借口,

让我们让它远离

传统的吃肉,从统计学上讲,

如果我在 50 年的时间里进行这个演讲的话,这个房间里大约 5% 的人是无肉饮食的消费者

然而,以前

这种说法只适用于

你们中的百分之一,

但即使在五年前,一项哈里斯民意调查

全国调查

发现,

美国成年人的素食比例仍略低于 3.5

%

一场更大的全球危机

气候变化 美国

目前

是肉类行业的最大消费者之一,其消费

率明显高于世界其他地区

让我们来看一个例子,

尽管自 1970 年以来猪肉和牛肉的产量在

1970 年之间保持相对稳定

和 2018 年鸡肉产量

飙升,现在

是世界平均水平的 3.5

倍 需要更少的空间来

养鸡已成为工厂化农民的热门选择

,占

我们今天食用的所有鸡肉产品

的 99.9 更何况在经济

欠发达的国家 让我们以

埃塞俄比亚为例,我们看到

美国的消费差距更大 家禽肉的

价格几乎是埃塞俄比亚的 100 倍

强调我们自己的国家

在更大

的气候变化问题上的责任 所以

美国作为问题的一部分 我们

也必须成为解决方案的一部分

有些人已经

选择喝豆浆而不是牛奶

无论出于何种优惠

原因,为什么不改变

饮食的其他部分,以及

在过去几年里,像

不可能的汉堡和其他肉类这样的公司已经

出现并销售他们的植物性

肉类产品

作为蛋白质的未来,需要

更少的土地 生产用水

和更少的能源最终

减少了 90% 的温室

气体排放量

豌豆、大豆、小麦和大米等植物 以植物为基础的肉类

已成为传统肉类的

更可持续替代品而享有盛誉

。当然

,为了保持与传统肉类相同的营养价值,植物性肉类生产商目前面临一些障碍

像不可能的汉堡和

超越汉堡肉饼这样的产品需要

比普通碎牛肉饼更多的加工处理,

从包括真菌和藻类在内的材料中寻找新的蛋白质来源

表明

扩大植物性肉类市场的可能性,

这也意味着

难以 制造商可能需要调整

他们的流程

对于那些可能

不愿接受

植物性肉类概念并

提出有效论点的人来说,所有这些对生产者和消费者来说仍然比传统肉类产品更昂贵。

不是真正的肉

在不久的将来带来了

一个有希望的解决方案的希望

另一个目标研究领域

是开发以

动物细胞为基础的肉,称为清洁

肉。

细胞肉是从结缔组织

脂肪细胞和肌肉细胞中培养出来的,所有这些

都是在实验室中培养的,

尽管仍处于早期阶段。

进一步

转变

我们作为肉类消费者的角色的潜力,以及

像美食研究所这样的组织,该研究所旨在将

科学家、企业家甚至学生聚集在一起

,为其事业做出贡献,

孟菲斯肉类和无鳍

食品等公司是最早

尝试细胞的公司之一 - 基于

肉类的过程与此类似,

这些公司首先从所需来源采购

少量可自我更新的细胞样本,

然后

为这些细胞在增殖后生长提供必要的营养,

这些细胞被

结构化以形成

肌肉和结缔组织和培养物

通过消除对 f 的需要,在分发给生产者和消费者之前 或工厂化

养殖清洁肉

名副其实,既摆脱了工厂化养殖

的肮脏屠宰的影响,又

摆脱了

我们正在创造的肮脏世界,

否则目前正在进行的

关于自我更新和差异茎的研究

在过去的几年里,细胞和培养为肉类行业开辟了新的机遇,

并为未来带来了持续的希望

就在几周前,孟菲斯会议

宣布了他们最新一轮

1.61 亿美元的融资,

总融资额超过 1.8 亿美元 来自

软银集团比尔·盖茨·理查德·

布兰森等投资者,

此外,美国农业部和 FDA 已

同意

在我们充满细菌和病毒的世界中共同

监管清洁肉类行业

如果

历史上已经在全球范围内实施清洁肉类,

那将是不可能的

禽流感和猪流感病毒在当今世界已经

传播给人类

预防这种

病毒在动物之间的传播

可以拯救我们 此外

,这些细胞生长的培养物

可以

被修改以包含特定的基因组

营养物质 使肉类

富含我们

可能缺乏的

维生素 世界可能看起来

可供农业使用的土地是

有限的,但

这个世界上的细胞数量

似乎是无限的

,随之而来的是无限的

可能性,干细胞技术正变得更

容易获得和更

有效。 未来带来

了利用这两种

细胞生产动物干细胞的潜力 未来几年将植物干

细胞用于生产基于

细胞的食物 未来几十年

将是基于细胞的

肉类 将是

基于细胞的肉类和蔬菜

我们会等待这些答案并

想象我们的世界的未来吗?

别忘了世界不会等待

所以下次你停下来吃邓肯甜甜圈时,

试试他们的香肠早餐

三明治,

渴望汉堡 汉堡王得到了你

,不可能有

我们的气候

谢谢

[掌声]