Alex Steffen: The shareable future of cities

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www.ted.com How can cities help save the future? Alex Steffen shows some cool neighborhood-based green projects that expand our access to things we want and need -- while reducing the time we spend in cars.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at www.ted.com/translate.

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7 авг 2011

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Комментарии : 99

@NextStarfish 12 лет назад

Great TED talk - used it as the basis for a blog post on 'sharing stuff' on Nextstarfish

@bearcat648 13 лет назад

One of the better TEDTalks.

@ooslingg 13 лет назад

Great presentation! It's critical for the future that these ideas reach the right minds.

@stevenytcx 13 лет назад

@theMammothman you are so right I have to turn down the volume every time the intro begins, then turn it back up

@leepatterson5387 9 лет назад

Great examples enjoyed talk

@sgtmcwallace 13 лет назад

best environmental talk ive seen, up there with amory lovins and juan enriquez

@1schwererziehbar1 13 лет назад

07:06 lol "mafia hits". that's pretty tongue in cheek for a ted talk.

@Dewkeeper 13 лет назад

@saladshootavvv It's not as bleak as you might think: A good public transport system can keep you inside a vehicle the entire way on rainy days, and the whole idea of efficient urban planning is that you aren't that far away from the things you need anyway, so walking in the rain is less of hassle. Of course, if someone wanted to be very high tech, a cool trick would be have extendable roofs over key walkways that pop out when it rains.

@jamiegaviria-ochoa179 2 года назад

Super enlightening 👌👍

@Radjehuty 13 лет назад

@EskilNaige I'm guessing by either bike or car. Because if you think about it, airports are generally within cities or urban areas and if you live in Rural areas, you have to be able to get to those airports that you're referring to which could take a day if you're really that far out there?

@Youssef51 13 лет назад

excellent, thought provoking.

@YawnGod 13 лет назад

This was really good.

@SeraphimGoose 12 лет назад

@ScyL0n That's exactly why I suggested it. Farm animals and the industry contribute massively to our emissions, and considering the amount of acreage that must be devoted to crops solely for feeding to the animals to produce an amount of meat or dairy that provides less sustenance than if we just ate the crops, its just uneconomical in the long run.

@deserthamster7049 13 лет назад

@Huettleronium Gross Domestic Product, the german for it would be Bruttoinlandsprodukt(BIP)

@antoshahorosha 13 лет назад

Brilliant.

@llViperStrikerll 13 лет назад

FINALLY someone that makes sense!

@CreamAle 13 лет назад

a medal..this guy needs one! where is it!?!

@Thimmet 13 лет назад

If someone could name the places where the photos were taken at 03:35 , 3:52 , 4:00 and 4:06 I would really appreciate it!

@tarohoa 13 лет назад

his jacket may not be fitting but he is right that the focus of sustainability is in the balance of the system, that is we need to figure out how to place ourselves within the boundaries of the cyclic ecosystem. Until we have better technologies, the environment makes a great infrastructure.

@elchafa337 13 лет назад

@sweYoda2 just what i thought when he talked about the surplus capacities!

@SeraphimGoose 12 лет назад

@rahulcart I think I saw that one come to think of it.

@rahulcart 12 лет назад

@JaredHutcheson1 There is a TED talk about being a weekday vegetarian. A great concept for those addicted to meat. It is by Graham Hill.

@TheUnchainedMind 13 лет назад

@sweYoda2 My thought exactly throught the video.

@ilotitto 13 лет назад

We should also grow our food locally through hydroponics or aquaponics growing on the rooftops and a lot of "hemp" in our basements.

@AngilasGuy 13 лет назад

@CapMurd The destruction, cleaning, and reconstruction using new materials would be incredibly energy intensive and inefficient.

@4lch3m15t 13 лет назад

He's paralleling the venus project. Bravo

@theMammothman 13 лет назад

teds new motto should be at the beginning of the video we blow your ears, then we blow your minds.

@billygundum 13 лет назад

reminds me of Jouqe Fresco

@AngilasGuy 13 лет назад

@CapMurd How so? If you plan on ditching the area and not cleaning up rubble, maybe. But that's a colossal waste of material. If you plan on reusing building material from the cities we've bulldozed, then that takes heavy duty transportation, and moving hundreds of thousands of tons of rubble requires a LOT of energy. Constructing an entire city from scratch also takes a lot of energy. It is far more efficient to build on top of what we have, retrofit with upgrades and conduct energy audits.

@sweYoda2 13 лет назад

@billygundum yea and he has been talking about this for about 30 years...

@OxiDemonik 13 лет назад

@4lch3m15t Haha, yeah, exactly why I clicked on the video, cause it reminded me of TVP. I'm so glad the masses are finally starting to hear about it, in that I'm clicking on random videos and starting to see people commenting about it.

@blahblahblahblha303 13 лет назад

@ImageOfReason Blue.

@elchafa337 13 лет назад

@161803 I think he's talking about interest rates

@SEThatered 13 лет назад

0:15 to skip overly loud intro ;)

@Huettleronium 13 лет назад

What das GDP stands for? :(

@samguy0 11 лет назад

@PrivacyUnderAttack - what is our 'sun activity' ??

@shell7324 13 лет назад

Industrial hemp is the only answer

@ImageOfReason 13 лет назад

Purple.

@DrSpooglemon 13 лет назад

The new solar energy technology is promising. We should be able to produce more than enough energy if it is undertaken on the appropriate scale. But he does make some good points. Not only do we need to become carbon neutral but we also need to remove some of the carbon that has been released into the atmoshere already...

@khatack 13 лет назад

@CapMurd Tell me, how is demolishing and rebuilding every single city in the world energy efficient?

@Ealts01 13 лет назад

"Ahh, yeah, Duhhh!" to everything he said. I agree with everything he said, but it's all pretty obvious.

@AquaticApe1 13 лет назад

@superfunny1972 Then drive... But let me ask you this. Do you enjoy driving every day? In traffic? Having to repair your car when it breaks? Worrying about it being stolen or wrecked? It's not a question of access, but of ownership.

@chr1swww 13 лет назад

i thought the great thing about high density cities was high cost of living, high crime rates, and low life satisfaction living in a rat race. but there's always the suburban spawl just outside cities that is cheaper than living in city, but with worse transport and amenities.

@Vicsor 13 лет назад

@BenFosterism That doesn't mean we should make it worse.

@astrialkil 11 лет назад

the sun goes threw cycles, ice age cycles seem to be tied to the sun for example. right before the little ice age it got really hot in Europe, wine grapes grew great in England at that time. then it got cold...so cold the vikings left north America.

@Idnuf636 13 лет назад

Red.

@datlik9 13 лет назад

green

@CalvinJGreen 13 лет назад

@OldSchoolSkill Investment will happen in these "sustainable" projects when there is money to invest. And when they are proven to be as finantially sustainable as they are enviromentally sustainable. Gov. subsidies of "green" projects will only result in projects with greater costs then actual merit. There will be no lessoning of "the evil influence of money from politics" greed is as constant as gravity. And when you give people free acees to another's money, (taxation) you know the story.

@saresare8589 2 года назад

اريد ترجمته لعربي

@majinspy 13 лет назад

@grraadd Well yes, plants use CO2, but it is a pollution in regards to us. As we continue to require more oxygen, less CO2, AND destroy the rain forests largely responsible for converting CO2 to O2, we run the risk of being permascrewed :(

@jasanpahaf 13 лет назад

Great cities also have the greatest levels of crime, unhealthy conditions, and unhappiness

@sweYoda2 13 лет назад

@Huettleronium google it

@Dexter_jwick 12 лет назад

@JaredHutcheson1 i dont think not eating meat is gonna help environmental damage. just recycling or emitting less carbon dioxide

@Dexter_jwick 12 лет назад

@jasanpahaf how do great cities have higher levels of crime??

@sweYoda2 13 лет назад

The Venus Project.

@SeraphimGoose 13 лет назад

When is TED going to have someone who has the guts to tell everyone (primarily Americans) that one of the biggest ways for us to curb environmental damage is to curb our meat consumption?

@superfunny1972 13 лет назад

and what if i enjoy driving?

@StephenDeagle 13 лет назад

The future of cities: super-dense, high-surveillance tentpoles of poor, urban communities enclosed by more comfortably spaced wealthy communities. Great idea...

@SolidMikeP 13 лет назад

ultra violet

@1966human 13 лет назад

All people need to do is develop the battery - self generating power hybrid type. The fossil fuel industry is to blame for most pollution and climate change - yes if you spill or dump 1000 litres etc in my world you change my climate

@i2aymond 13 лет назад

@beatboxpeej Snakes shed their skin.

@Radjehuty 13 лет назад

@johndoe77774444 hmm yeah I guess that's true. Even going to other continents you could cover a thousand miles in a day if you wanted. Perhaps he meant on foot lol. Who knows

@maggru91 13 лет назад

Thorium Energy = Cheap, Safe, pretty much pollution free. Thorium Nuclear power is the future.

@loveinu34 5 лет назад

Hola te quiero Mimigue

@khatack 13 лет назад

@CapMurd You better run your math again then buddy, and this time take into account the temporary relocation of the whole urban population, all the services, industry, the complete eradication of infrastructure such as water and electricity, road networks... Think about the huge effort required to even police such an operation. In other words, you didn't think your idea through before uttering it, resulting in nonsense.

@Leo9613 13 лет назад

Why do everybody guilts the poor car?

@demosnipe1589 13 лет назад

@OldSchoolSkill that is some cliche argument; "corporations are evil!" That is ridiculous. Go read some books and travel the world. It is PEOPLE who are corrupt, not a piece of paper.

@GherardiRoe 13 лет назад

It's a dream of mine to get through my life without ever having to buy a car

@broccolininja8950 3 года назад

hows it gone wo far?

@GherardiRoe 3 года назад

@@broccolininja8950 Funny you should ask! Well i made it to 35 but bought a 13 year old hybrid last week as i needed one for family reasons. Plan is to buy a second hand electric once i can afford one. My country is just built for cars right now 🤷‍♂️

@broccolininja8950 3 года назад

@@GherardiRoe I salute your efforts, I'm 19 and just now learning to drive but I plan on going electric soon as I can! Thanks for the response Gerard.

@steadydisciplined 13 лет назад

Not only steal from our Future, we steal ALL other animal's future as well. ( e.g. Polar Bears )

@alinaysa 13 лет назад

@theMammothman .. and then, just for a change, we blow your ears again......... @TEDtalksDirector fix the volume of your intros and outros, please! I promise, I don't need to have a headache every time I watch one of these vids!

@astrialkil 11 лет назад

fine we will eat you instead ! 8[

@DeadWhiteButterflies 13 лет назад

It's always kind annoying when I see all these great ideas being shown by the scientists and architects, and especially on anything eco-related, then it seems the politicians and business investors then stand there, laugh at them then remind everyone in the room "don't listen to this idiot" and thus you never really see these ever come into use like they should be, and everyone carries on in blissful ignorance. Shame really.

@shadman1911 13 лет назад

@blahblahblahblha303 yellow

@astrialkil 11 лет назад

Dont forget polution, racial strife, !

@EHATU 13 лет назад

Brown?

@astrialkil 11 лет назад

staying home and doing your shoping over the internet (thru the mail) is cheaper and more fuel efficient. The obama health care bill has killed small buisness, my boss says she cant afford it and will likly close. choice hotels is largly leaving north america (service centers) and has gone to south america. you can do extreame sprots ride mothorcycle (and horses) out side of citys too. gun laws are being passed as we speak against gun ownership. Plus you GAIN in citys CRIME, POLUTION, CONGESTION

@melissaalvarez03 5 лет назад

if your boss cant afford to pay her employees enough for them to afford healthcare on their own, or provide benefits, then your boss has no business being a business owner.