TED2013
Michael Green: Why we should build wooden skyscrapers
Michael Green: 我哋點解要用木材起摩天大廈
Filmed:
Readability: 3.7
1,360,251 views
起一棟摩天大廈？建築師 Michael Green 話唔好用鋼筋同水泥，反之，要用木材去起。喺呢場發人深省嘅演講度，佢講到木建築唔單止可以起到 30 層樓高（而且佢希望再高啲），而且有需要咁做。
Michael Green - Architect
Michael Green wants to solve architecture’s biggest challenge -- meeting worldwide housing demand without increasing carbon emissions -- by building with carbon-sequestering wood instead of concrete and steel. Full bio
Michael Green wants to solve architecture’s biggest challenge -- meeting worldwide housing demand without increasing carbon emissions -- by building with carbon-sequestering wood instead of concrete and steel. Full bio
Double-click the English transcript below to play the video.
00:13
This is my grandfather.
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呢個係我祖父
00:16
And this is my son.
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呢個係我個仔
00:18
My grandfather taught me to work with wood
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細個嗰時，爺爺除咗教我木工
00:20
when I was a little boy,
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00:22
and he also taught me the idea that
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佢仲教我一個道理
00:24
if you cut down a tree to turn it into something,
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如果你將樹砍落嚟變成一樣嘢
00:27
honor that tree's life and make it as beautiful
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咁你就要盡力整出
最靚嘅嘢嚟榮耀棵樹
最靚嘅嘢嚟榮耀棵樹
00:29
as you possibly can.
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00:31
My little boy reminded me
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而我個仔提醒咗我
00:35
that for all the technology and all the toys in the world,
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全世界嘅科技產品同玩具
00:38
sometimes just a small block of wood,
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有時候都比唔上一堆小木頭疊高
咁有啟發性
咁有啟發性
00:40
if you stack it up tall,
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00:42
actually is an incredibly inspiring thing.
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00:46
These are my buildings.
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呢啲係我參與過嘅建築物
00:48
I build all around the world
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我平時喺溫哥華同紐約嘅辦公室裡邊
00:49
out of our office in Vancouver and New York.
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參與世界各地嘅建設項目
00:52
And we build buildings of different sizes and styles
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視乎我哋喺邊度工作
我哋嘅建築有唔同大小
唔同風格、用唔同材料
唔同風格、用唔同材料
00:55
and different materials, depending on where we are.
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00:57
But wood is the material that I love the most,
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但木頭一直係我最喜愛嘅材料
00:59
and I'm going to tell you the story about wood.
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我會講一個木頭嘅故事畀你哋聽
01:01
And part of the reason I love it is that every time
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我鍾意木頭，部分原因係因為
01:03
people go into my buildings that are wood,
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每次人哋走入我設計嘅木製建築
01:06
I notice they react completely differently.
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我發覺佢哋嘅反應完全唔一樣
01:08
I've never seen anybody walk into one of my buildings
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我未見過有人
走入鋼筋水泥建築物去擁抱樁柱
走入鋼筋水泥建築物去擁抱樁柱
01:11
and hug a steel or a concrete column,
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01:13
but I've actually seen that happen in a wood building.
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但我就喺木製建築裡面見到呢幕
01:16
I've actually seen how people touch the wood,
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我睇到人哋點樣掂啲木
01:19
and I think there's a reason for it.
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我相信呢個背後一定有原因
01:21
Just like snowflakes, no two pieces of wood
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就好似雪花一樣
地球上冇兩塊木係一模一樣嘅
地球上冇兩塊木係一模一樣嘅
01:23
can ever be the same anywhere on Earth.
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01:26
That's a wonderful thing.
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所以木係好美妙嘅事
01:28
I like to think that wood
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我鍾意將木諗成係
01:30
gives Mother Nature fingerprints in our buildings.
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喺我哋建築物上留低嘅大自然足印
01:34
It's Mother Nature's fingerprints that make
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係大自然嘅足印令建築物
01:36
our buildings connect us to nature in the built environment.
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能夠將我哋同大自然連繫起嚟
01:41
Now, I live in Vancouver, near a forest
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宜家我住喺溫哥華，好近一個森林
01:43
that grows to 33 stories tall.
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嗰度嘅樹可以生到 33 層樓咁高
01:46
Down the coast here in California, the redwood forest
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而喺加州海岸嘅紅木林
01:48
grows to 40 stories tall.
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樹木可以生長到 40 層樓高
01:51
But the buildings that we think about in wood
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但係大多數木建築都只有四層樓高
01:54
are only four stories tall in most places on Earth.
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喺好多地方，建築法例限制咗我哋
01:57
Even building codes actually limit the ability for us to build
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02:01
much taller than four stories in many places,
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木製樓宇唔能夠高過四層樓
02:03
and that's true here in the United States.
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包括美國
02:05
Now there are exceptions,
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宜家已經有例外
02:07
but there needs to be some exceptions,
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我覺得需要有例外嘅情況
02:09
and things are going to change, I'm hoping.
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而且我希望法例會改
02:11
And the reason I think that way is that
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我之所以咁諗係因為
02:13
today half of us live in cities,
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今日世界一半嘅人口住喺城市
02:16
and that number is going to grow to 75 percent.
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而呢數字仲會增長到 75%
02:19
Cities and density mean that our buildings
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城市同人口密度代表
我哋嘅建築將會愈嚟愈大
我哋嘅建築將會愈嚟愈大
02:21
are going to continue to be big,
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而木材會喺城市裏面扮演一個角色
02:24
and I think there's a role for wood to play in cities.
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02:28
And I feel that way because three billion people
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我咁諗係因為世界有三十億人
02:31
in the world today, over the next 20 years,
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會喺未來二十年需要一個新嘅家
02:34
will need a new home.
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02:35
That's 40 percent of the world that are going to need
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就啫係話，未來廿年
新嘅建築物需要興建
去迎合世界 40% 人口嘅需要
去迎合世界 40% 人口嘅需要
02:37
a new building built for them in the next 20 years.
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02:41
Now, one in three people living in cities today
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今日，城市裏邊每三個人
就有一個住喺貧民窟裡邊
就有一個住喺貧民窟裡邊
02:43
actually live in a slum.
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02:45
That's one billion people in the world live in slums.
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全世界有十億人住緊喺貧民窟
02:48
A hundred million people in the world are homeless.
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一億人無家可歸
02:53
The scale of the challenge for architects
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建築師同社會面對嘅挑戰
就係要為呢啲人搵到棲身之所
就係要為呢啲人搵到棲身之所
02:55
and for society to deal with in building
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02:58
is to find a solution to house these people.
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03:02
But the challenge is, as we move to cities,
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但問題在於，當我哋搬到城市
03:06
cities are built in these two materials,
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而城市通常以兩種物料起成︰
鋼筋同水泥
鋼筋同水泥
03:09
steel and concrete, and they're great materials.
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呢兩種都係好好嘅材料
03:12
They're the materials of the last century.
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但係佢哋係上世紀嘅建材
03:14
But they're also materials with very high energy
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需要好多能源去生產佢哋
03:17
and very high greenhouse gas emissions in their process.
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仲會喺生造過程中釋放大量溫室氣體
03:21
Steel represents about three percent
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鋼材佔咗人類溫室氣體排放量嘅 3%
03:23
of man's greenhouse gas emissions,
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03:25
and concrete is over five percent.
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水泥就佔咗 5% 以上
03:28
So if you think about that, eight percent
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所以諗諗，今日溫室氣體排放量嘅 8%
03:31
of our contribution to greenhouse gases today
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03:34
comes from those two materials alone.
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係嚟自呢兩種建材
03:37
We don't think about it a lot, and unfortunately,
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我哋冇諗過呢樣嘢好多
03:40
we actually don't even think about buildings, I think,
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我哋冇成日諗下建築究竟要點
03:42
as much as we should.
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03:43
This is a U.S. statistic about the impact of greenhouse gases.
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呢度係一份美國有關溫室氣體嘅統計
03:47
Almost half of our greenhouse gases are related to the building industry,
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差唔多半數排放量嚟自建造業
03:50
and if we look at energy, it's the same story.
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能源用量方面，情況都係差唔多
03:53
You'll notice that transportation's sort of second down that list,
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我哋成日講交通，但係交通只係排第二
03:56
but that's the conversation we mostly hear about.
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03:58
And although a lot of that is about energy,
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雖然好多時啲嘢都係同能源問題有關
04:02
it's also so much about carbon.
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但係碳排放同樣重要
04:05
The problem I see is that, ultimately,
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我覺得問題最終係
我哋該點樣同時解決
三十億人嘅房屋需求
三十億人嘅房屋需求
04:08
the clash of how we solve that problem
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04:10
of serving those three billion people that need a home,
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04:13
and climate change, are a head-on collision
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而又關照到氣候
04:17
about to happen, or already happening.
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其實呢個問題正喺度發生緊
04:20
That challenge means that we have to start thinking in new ways,
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呢個問題代表我哋要創新
04:23
and I think wood is going to be part of that solution,
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所以我會覺得木材將會係對策嘅一部分
04:25
and I'm going to tell you the story of why.
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我會話畀你知點解
04:27
As an architect, wood is the only material,
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作為一位建築師，木材係唯一一種
04:29
big material, that I can build with
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我可以使用、兼靠太陽生成嘅大型建材
04:32
that's already grown by the power of the sun.
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04:35
When a tree grows in the forest and gives off oxygen
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森林裡面嘅樹生長
放出氧氣、吸入二氧化碳
放出氧氣、吸入二氧化碳
04:38
and soaks up carbon dioxide,
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04:40
and it dies and it falls to the forest floor,
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當樹木死咗瞓喺地下時
04:43
it gives that carbon dioxide back to the atmosphere or into the ground.
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佢哋會將二氧化碳釋放返去
大氣層或者泥土裏面
大氣層或者泥土裏面
04:48
If it burns in a forest fire, it's going to give that carbon
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如果樹木遇上山火
碳都會重新釋放到大氣層
04:51
back to the atmosphere as well.
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04:53
But if you take that wood and you put it into a building
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但如果你將木頭攞嚟起屋
或者做傢俬、玩具
或者做傢俬、玩具
04:56
or into a piece of furniture or into that wooden toy,
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05:00
it actually has an amazing capacity
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咁樣其實可以封存到好多碳
05:01
to store the carbon and provide us with a sequestration.
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05:05
One cubic meter of wood will store
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一立方米嘅木頭可以儲存一噸二氧化碳
05:09
one tonne of carbon dioxide.
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05:11
Now our two solutions to climate are obviously
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我哋控制氣候嘅兩個方法係
05:14
to reduce our emissions and find storage.
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減少溫室氣體排放同搵碳嘅儲存空間
05:16
Wood is the only major material building material
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木頭係主要唯一一種
05:18
I can build with that actually does both those two things.
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能夠同時做到以上兩個方法嘅建材
05:22
So I believe that we have
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以前，我哋一直相信地球
會製造我哋嘅食物
會製造我哋嘅食物
05:25
an ethic that the Earth grows our food,
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05:28
and we need to move to an ethic in this century
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今個世紀，我哋需要相信
地球會製造我哋嘅家
地球會製造我哋嘅家
05:30
that the Earth should grow our homes.
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05:33
Now, how are we going to do that
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當城市化嘅速度係咁快
05:34
when we're urbanizing at this rate
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而我哋慣性諗木建築
最多只有四層高時
最多只有四層高時
05:36
and we think about wood buildings only at four stories?
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我哋可以點做到用木起樓呢？
05:38
We need to reduce the concrete and steel and we need
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我哋要減少鋼材同水泥嘅用量
05:41
to grow bigger, and what we've been working on
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同時要興建更大嘅木建築
05:42
is 30-story tall buildings made of wood.
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我哋正籌備緊起一啲三十層高嘅木大廈
05:47
We've been engineering them with an engineer
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我哋同工程師 Eric Karsh 合作
05:51
named Eric Karsh who works with me on it,
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我哋合作做呢個項目係因為
我哋有新嘅木製品可以用
我哋有新嘅木製品可以用
05:53
and we've been doing this new work because
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05:56
there are new wood products out there for us to use,
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05:58
and we call them mass timber panels.
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我哋叫呢啲做巨型木嵌板
06:00
These are panels made with young trees,
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呢啲嵌板將年幼嘅樹
生得唔高嘅樹、細片嘅木
生得唔高嘅樹、細片嘅木
06:03
small growth trees, small pieces of wood
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06:06
glued together to make panels that are enormous:
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集合埋一齊變成咗大型嘅嵌板
06:09
eight feet wide, 64 feet long, and of various thicknesses.
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八呎乘六十四呎，備有唔同厚度
06:13
The way I describe this best, I've found, is to say
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要形容呢樣嘢最好嘅方式係咁：
06:16
that we're all used to two-by-four construction
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我哋平時諗到嘅木都係 2X4 規格
06:18
when we think about wood.
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06:19
That's what people jump to as a conclusion.
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於是大家好容易就會話木係 2X4
06:22
Two-by-four construction is sort of like the little
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2X4 規格似係細個
玩八個點嘅樂高積木
玩八個點嘅樂高積木
06:24
eight-dot bricks of Lego that we all played with as kids,
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06:26
and you can make all kinds of cool things out of Lego
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你可以用咁大嘅樂高積木
造出千變萬化有趣嘅嘢
造出千變萬化有趣嘅嘢
06:29
at that size, and out of two-by-fours.
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06:32
But do remember when you were a kid,
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但你哋記得細路嗰時
06:33
and you kind of sifted through the pile in your basement,
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你哋喺地牢摷嚟摷去
06:35
and you found that big 24-dot brick of Lego,
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可能摷到一個有二十四點嘅積木
06:38
and you were kind of like,
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你會諗︰
06:39
"Cool, this is awesome. I can build something really big,
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「酷，咁我可以起一個好大嘅嘢
06:41
and this is going to be great."
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整咗出嚟一定好正。」
06:43
That's the change.
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於是事情唔一樣
06:44
Mass timber panels are those 24-dot bricks.
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巨型木嵌板就似嗰塊有廿四點嘅積木
06:47
They're changing the scale of what we can do,
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佢改變咗我哋起樓嘅規模
06:49
and what we've developed is something we call FFTT,
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我哋研發出一個叫 FFTT 嘅嘢
06:51
which is a Creative Commons solution
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佢係一個開放部分使用權嘅產品
06:54
to building a very flexible system
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可以用嚟起各式各樣嘅建築
06:59
of building with these large panels where we tilt up
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我哋可以用呢啲大型木建材板
每次最多起六層樓
07:01
six stories at a time if we want to.
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07:05
This animation shows you how the building goes together
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呢個動畫顯示啲建築物
點樣好簡單嘅連埋一齊
點樣好簡單嘅連埋一齊
07:09
in a very simple way, but these buildings are available
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07:12
for architects and engineers now to build on
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07:15
for different cultures in the world,
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呢啲建築無論咩文化同建築風格都啱
07:16
different architectural styles and characters.
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07:19
In order for us to build safely,
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為咗起嘅時候安全
07:22
we've engineered these buildings, actually,
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我哋特別設計令呢啲大廈
適合溫哥華嘅環境
適合溫哥華嘅環境
07:24
to work in a Vancouver context,
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07:26
where we're a high seismic zone,
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就係即使有三十層樓高，都有抗震能力
07:27
even at 30 stories tall.
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07:31
Now obviously, every time I bring this up,
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當然，每次當我提起呢個
07:32
people even, you know, here at the conference, say,
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人哋都會問︰
07:34
"Are you serious? Thirty stories? How's that going to happen?"
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「你係認真嘅？三十層？點可能？」
07:37
And there's a lot of really good questions that are asked
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啲人問咗好多好好、好重要嘅問題
07:41
and important questions that we spent quite a long time
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我哋都花咗一段時間解答問題
07:43
working on the answers to as we put together
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同埋將問題寫喺我哋嘅報告上面
07:45
our report and the peer reviewed report.
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我只會講其中幾個問題
07:48
I'm just going to focus on a few of them,
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07:49
and let's start with fire, because I think fire
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先講下防火，因為我覺得
07:51
is probably the first one that you're all thinking about right now.
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防火係大家第一個諗到嘅問題
07:53
Fair enough.
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呢個唔難理解
07:54
And the way I describe it is this.
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我會咁樣講
07:56
If I asked you to take a match and light it
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如果我請你點著一枝火柴
07:58
and hold up a log and try to get that log to go on fire,
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再將佢點著一轆木
08:02
it doesn't happen, right? We all know that.
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轆木唔會著，啱唔啱？
我哋都知道唔會點著
08:04
But to build a fire, you kind of start with small pieces
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但要點燃一樣嘢，你必須從細塊開始
08:07
of wood and you work your way up,
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慢慢由細燒起
08:08
and eventually you can add the log to the fire,
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最後至將大塊嘅加到火裏邊
08:11
and when you do add the log to the fire, of course,
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所以當你放轆木去燒嘅時候
08:13
it burns, but it burns slowly.
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佢當然會燒啦，但係會燒得好慢
08:16
Well, mass timber panels, these new products
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而我哋用緊嘅呢個新產品，巨型木嵌板
08:18
that we're using, are much like the log.
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就好似大塊嘅木咁，佢哋好難燃燒
08:20
It's hard to start them on fire, and when they do,
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而且當佢哋燒起上嚟嘅時候
火勢會出奇地預測得到
火勢會出奇地預測得到
08:23
they actually burn extraordinarily predictably,
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08:26
and we can use fire science in order to predict
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所以我哋可以用防火嘅科學知識
嚟預測火勢
嚟預測火勢
08:28
and make these buildings as safe as concrete
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並將木製大廈設計得
同水泥鋼材大廈一樣安全
同水泥鋼材大廈一樣安全
08:30
and as safe as steel.
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08:33
The next big issue, deforestation.
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第二個大問題︰森林資源
08:36
Eighteen percent of our contribution
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全球溫室氣體排放量嘅 18%
嚟自採伐森林
嚟自採伐森林
08:38
to greenhouse gas emissions worldwide
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08:40
is the result of deforestation.
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08:42
The last thing we want to do is cut down trees.
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斬樹係我哋最後嘅方案
08:45
Or, the last thing we want to do is cut down the wrong trees.
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應該咁講，我哋最後先至考慮斬樹
08:49
There are models for sustainable forestry
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現今嘅幾種可持續嘅伐木模式
畀我哋有節制咁取得木材
畀我哋有節制咁取得木材
08:52
that allow us to cut trees properly,
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08:54
and those are the only trees appropriate
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而斬得嘅樹都必須要適合呢套系統
08:56
to use for these kinds of systems.
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08:58
Now I actually think that these ideas
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我覺得呢啲諗法會改變伐木嘅經濟模式
09:00
will change the economics of deforestation.
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09:04
In countries with deforestation issues,
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喺受伐木問題困擾嘅國家
09:06
we need to find a way to provide
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我哋需要畀到森林最大嘅價值
09:08
better value for the forest
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09:11
and actually encourage people to make money
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並鼓勵大家利用
樹木快速生長週期去賺錢
樹木快速生長週期去賺錢
09:13
through very fast growth cycles --
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09:15
10-, 12-, 15-year-old trees that make these products
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十年、十二年、十五年嘅樹木
都可以用嚟製造呢啲嵌板
都可以用嚟製造呢啲嵌板
09:18
and allow us to build at this scale.
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同畀我哋大規模咁起樓
09:20
We've calculated a 20-story building:
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我哋計過一幢廿層嘅建築
只需要北美洲十三分鐘長出嘅木
只需要北美洲十三分鐘長出嘅木
09:23
We'll grow enough wood in North America every 13 minutes.
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09:26
That's how much it takes.
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我哋需要嘅就係咁多
09:28
The carbon story here is a really good one.
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呢個就係好嘅碳故事
09:31
If we built a 20-story building out of cement and concrete,
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但如果我哋起一幢
廿層高嘅鋼材水泥大廈
廿層高嘅鋼材水泥大廈
09:35
the process would result in the manufacturing
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水泥生產過程將會排出
1,200 噸二氧化碳
1,200 噸二氧化碳
09:37
of that cement and 1,200 tonnes of carbon dioxide.
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如果我哋以木嚟起
09:41
If we did it in wood, in this solution,
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我哋可以封存到 3,100 噸二氧化碳
09:44
we'd sequester about 3,100 tonnes,
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09:45
for a net difference of 4,300 tonnes.
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即係話，兩者嘅二氧化碳排放量
相差 4,300 噸
相差 4,300 噸
09:48
That's the equivalent of about 900 cars
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差唔多等於 900 部車一年嘅排放量
09:51
removed from the road in one year.
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09:54
Think back to that three billion people
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諗諗嗰三十億需要新屋嘅人
09:55
that need a new home,
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09:57
and maybe this is a contributor to reducing.
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或者呢個方法可以減少碳排放
10:00
We're at the beginning of a revolution, I hope,
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我希望我哋宜家會
喺建築革命嘅起步階段
喺建築革命嘅起步階段
10:02
in the way we build, because this is the first new way
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因為呢個會係起摩天大廈嘅最新方法
10:04
to build a skyscraper in probably 100 years or more.
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10:09
But the challenge is changing society's perception
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但最大嘅考驗係嚟自社會
對於創新冒險嘅心態
對於創新冒險嘅心態
10:12
of possibility, and it's a huge challenge.
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而且呢個考驗好大
10:14
The engineering is, truthfully, the easy part of this.
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工程嘅部分，老實講係好容易嘅
10:17
And the way I describe it is this.
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我會咁講
10:20
The first skyscraper, technically --
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摩天大廈最初技術上嘅定義
講你都唔相信︰
講你都唔相信︰
10:22
and the definition of a skyscraper is 10 stories tall, believe it or not —
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凡係十層或以上高嘅樓都算係
10:24
but the first skyscraper was this one in Chicago,
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呢座係芝加哥嘅第一座摩天大廈
10:26
and people were terrified to walk underneath this building.
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當時人哋經過佢下面都會驚
10:30
But only four years after it was built,
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但喺佢建成後嘅短短四年
艾菲爾起咗巴黎鐵塔
艾菲爾起咗巴黎鐵塔
10:31
Gustave Eiffel was building the Eiffel Tower,
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10:34
and as he built the Eiffel Tower,
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而且佢起鐵塔嘅時候
10:36
he changed the skylines of the cities of the world,
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佢改變咗全世界城市嘅天際線
10:40
changed and created a competition
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促使好似紐約同芝加哥
咁嘅城市開始競爭
咁嘅城市開始競爭
10:43
between places like New York City and Chicago,
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10:46
where developers started building bigger and bigger buildings
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開始起愈嚟愈大嘅建築
10:48
and pushing the envelope up higher and higher
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將天際線愈推愈高
10:52
with better and better engineering.
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亦令到工程學嘅知識
亦都愈嚟愈成熟
亦都愈嚟愈成熟
10:54
We built this model in New York, actually,
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我哋喺紐約為明日一所理工大學嘅校園
10:56
as a theoretical model on the campus
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整咗呢個建築模型
10:59
of a technical university soon to come,
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11:01
and the reason we picked this site
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我哋揀呢個項目做例子
11:03
to just show you what these buildings may look like,
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等你可以睇到呢啲建築會係點嘅樣
11:06
because the exterior can change.
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外觀可以改，所以我哋只係講佢嘅結構
11:07
It's really just the structure that we're talking about.
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11:10
The reason we picked it is because this is a technical university,
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我哋揀呢個嘅原因係
佢係一間理工大學
佢係一間理工大學
11:13
and I believe that wood is the most
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而且我相信木材係最先進嘅材料
11:15
technologically advanced material I can build with.
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11:19
It just happens to be that Mother Nature holds the patent,
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因為只有大自然至擁有佢嘅專利
11:22
and we don't really feel comfortable with it.
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但對於呢點我哋無法接受
但正因為咁
11:24
But that's the way it should be,
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11:26
nature's fingerprints in the built environment.
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我哋嘅建築裏面
應該要有大自然嘅痕跡
應該要有大自然嘅痕跡
11:30
I'm looking for this opportunity
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我正喺度搵緊一個機會
締造另一個「巴黎鐵塔時刻」
締造另一個「巴黎鐵塔時刻」
11:32
to create an Eiffel Tower moment, we call it.
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11:35
Buildings are starting to go up around the world.
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當世界各地嘅建築愈嚟愈高
11:37
There's a building in London that's nine stories,
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倫敦有一幢九層高嘅木製樓
11:39
a new building that just finished in Australia
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澳洲都有一座新嘅木製樓
11:41
that I believe is 10 or 11.
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大概十至十一層樓高
11:43
We're starting to push the height up of these wood buildings,
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呢一刻，我哋開始將木建築愈起愈高
11:47
and we're hoping, and I'm hoping,
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我哋希望，我都希望
11:49
that my hometown of Vancouver actually potentially
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我嘅城市溫哥華
可以喺不久嘅將來
起到二十層高嘅全球最高木建築
起到二十層高嘅全球最高木建築
11:52
announces the world's tallest at around 20 stories
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11:54
in the not-so-distant future.
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11:57
That Eiffel Tower moment will break the ceiling,
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下一個「巴黎鐵塔時刻」
會打破木建築以往嘅高度
會打破木建築以往嘅高度
12:00
these arbitrary ceilings of height,
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12:01
and allow wood buildings to join the competition.
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然後同水泥鋼筋大廈一齊比天高
12:04
And I believe the race is ultimately on.
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我相信呢場競爭終有一日會開始
12:06
Thank you.
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多謝
（掌聲）
12:08
(Applause)
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ABOUT THE SPEAKER
Michael Green - ArchitectMichael Green wants to solve architecture’s biggest challenge -- meeting worldwide housing demand without increasing carbon emissions -- by building with carbon-sequestering wood instead of concrete and steel.
Why you should listen
Michael Green is calling for rapid systemic change in the way we build. To end the global housing and climate crises, we need to get past innovation-stifling regulations and well-meaning but misguided ideas popularized by mainstream media. His proposal: Forget steel, straw, concrete, shipping containers, and rammed earth. Use wood to erect urban skyscrapers. “When the Eiffel Tower was built, nobody thought it could be done. Now it’s a symbol of Paris,” Green told the Vancouver Sun. “Projects like it really triggered an innovation on how cities were built. Man moves by innovation and [by] aiming for the moon.”
Green, whose projects range from retail boutiques and housing in North America to a sustainable community in Asia, explores the plausibility of tall wood buildings -- the costs, benefits, and engineering challenges -- in an extensive 2012 white paper. The TED Talent Search winner also teaches and mentors at the University of British Columbia’s School of Architecture and Landscape Architecture (SALA).
More profile about the speakerGreen, whose projects range from retail boutiques and housing in North America to a sustainable community in Asia, explores the plausibility of tall wood buildings -- the costs, benefits, and engineering challenges -- in an extensive 2012 white paper. The TED Talent Search winner also teaches and mentors at the University of British Columbia’s School of Architecture and Landscape Architecture (SALA).
Michael Green | Speaker | TED.com