Published May 13, 2023, 4:08 a.m. by Arrik Motley
The year is 2050. The world is a vastly different place than it is today. The population has exploded and the resources of the planet are running low. The climate has changed dramatically, causing widespread famine and disease. In the midst of all this chaos, a small group of people have banded together to create a utopia. They live in a world where technology has made everything possible. They have the resources to cure all ills and the knowledge to make the world a better place.
This is the story of the documentary "Lifestyle - The world in 2050", which explores the real future of our planet. The film takes a look at the problems facing the world today and how they will affect us in the future. It also looks at the solutions that are being developed to address these problems.
The documentary is narrated by Top Class Documentaries, who are known for their informative and thought-provoking films. They have created a film that is both entertaining and educational. The film is sure to leave you with a lot to think about.
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[Music]
we are in a race the race is against
time
we have to build cities we need them but
we have to make them in a different way
we need a wave of innovation not only
for our way of life but also the planet
the consequences would be enormous if we
lose this battle
[Music]
[Applause]
[Music]
[Applause]
[Music]
i'm thomas goetz executive editor at
wired magazine
at wired we look at the innovators and
innovations that are changing our world
in the next hour we'll see three stories
from acclaimed filmmakers about the
future of energy
we'll explore cutting edge innovations
in how we drive how we live and in our
first story how we fuel our cars
they are all ideas that promise to shape
the path to the world of 2050.
[Music]
the world has right now
close to a billion cars and we might
double the number of cars on the planet
by 2050.
so if we double the number of vehicles
we really increase
the amount of fuel they consume and
that's going to have a big big footprint
in terms of our demand for resources to
move all those vehicles around we're
pulling up carbon that's been stored
underground and burning it in our
automobiles and putting all that carbon
dioxide into the atmosphere
if we don't reduce that we could have
changes in the climate that we could
never recover from
there's a number of forecasts for what
type of transportation economy we could
move into one vision is that we will use
more and more liquid fuels
another owners will use more and more
electricity and right now more of the
industrial activity is focused around
liquid biofuels
the thing about a fuel is it's really
unparalleled on a weight basis how much
energy is in a gallon of fuel
and even if batteries develop as some of
the advocates hope they develop we're
not going to see batteries running large
trucks and we're certainly not going to
see an electrified airplane
we're going to need transportation fuels
for those that will directly replace the
petroleum-based fuels that we're using
today
this has kicked off people looking at a
whole range of other alternatives to
petroleum in your tank
[Music]
commercial production of ethanol as fuel
started in brazil in 1975. when we
started the ethanol program nobody
talked about
reducing emissions this was not an issue
at that time
first and most important
we didn't have money to buy oil anymore
after the first oil shock
we were importers of oil
and today
more than 50 percent of all cars use
ethanol instead of gasoline
brazil made a very conscious choice to
try to find a way to reduce their fossil
fuel dependence and they didn't have to
look very far
because brazil's climate is ideal for
growing sugar cane
then you have sugar cane plantation you
have only two things to make sugar and
ethanol
my family has been in sugarcane business
since 1955 and about 30 years ago i
thought there is opportunity to make
more ethanol
and now we are producing
120
000
cubic meters of ethanol
brazil today has very close to 400 sugar
meals
the overall sales is 30 billion us
dollars and this number is increasing
if you look at how they make ethanol and
how efficient the process is it's really
a model for all of us
they grind the plant up
extract the sugar from the cane the
sugar goes into these large fermentation
tanks which combines sugars together
with yeast that naturally produces
ethanol
they use the rest of the plant to
generate heat to distill the ethanol and
turn it into fuel
they also use that heat to generate
electricity renewably not putting excess
carbon dioxide in the atmosphere
brazil has gotten to a point today where
they're using about 40 percent less
petroleum than they would be otherwise
but brazil cannot supply the whole world
with ethanol because they would have to
cut very strongly into food production
and into critical natural areas like the
amazon to make that happen
and this really boils down to the fact
that there's only so much arable land
and
growing fuel for our gas tanks is yet
another demand on that landscape
we cannot keep ourselves in thinking
that we found a general solution for the
world problems i think we will have to
face the world in this way today we have
no oil in very large quantities anymore
we have no coal transformed in a clean
way in the meantime we have to do the
best we can
and the best at the moment is that we
can do biofuels
sugarcane to ethanol is an incredibly
efficient process you get out about
seven times the energy you put into
growing the sugarcane
in the u.s when we produce ethanol from
corn for every unit of input of energy
we get about the same amount of energy
out
so we're really not gaining anything we
need a better process we don't have to
take what nature has given us we can
actually engineer plants and yeast to be
more efficient and that's the basis for
a lot of the work that we're doing now
what we need to look at though is which
of the pathways that come out of this
are not only good financially but those
that are also good in sustainability and
this equation is is really wide open
right now
we are in a race to develop fuels
the race isn't with other countries the
race is against time
[Music]
to meet the immediate and future demands
we made the energy solution spring from
the ground
[Music]
brazil is the most efficient ethanol
producing country in the world
sugarcane alcohol from brazil can reduce
the total carbon footprint by up to 70
percent compared with the gasoline
[Music]
the biggest challenge for fuel providers
and car manufacturers is to reduce co2
emissions over the next 20 years
demand for mobility will continue to
grow we believe that biofuels are very
important
because they help in an immediate way
all forms of fuel are going to be needed
hydrocarbons natural gas biofuels all of
them are going to be part of the energy
for the future of transportation
[Music]
brazil has been very successful at
taking a resource they had
and finding the process to make that
into ethanol and people call those first
generation biofuels
we have lots of lab work around the
world that are looking at the second
generation that's generally turning
cellulosic material from for example
weeds
into biofuels
and the united states is very much at
the forefront of the innovation part of
the equation
[Music]
for centuries we have been using yeast
to consume glucose and produce wine and
beer we're trying to do something very
similar only we're engineering the yeast
to consume that glucose and turn it into
a fuel or a drug or chemical
we call this synthetic biology and when
i started in this area many of my
colleagues said oh jay this is great
work
but where's the application what are you
going to do with these tools who cares
malaria is an enormous problem in any
one year a million or so people die of
the disease and most of them are
children under the age of five so we
thought this was a great opportunity to
engineer yeast to produce an
anti-malarial drug called artemisinin
this drug is derived from plants right
now but it's too expensive for people in
the developing world so my laboratory
engineered yeast to produce small
quantities of artemisinin now that
process is being scaled up and we'll
have this drug on the market shortly but
at a substantially reduced cost
it turns out that anti-malarial drug is
a hydrocarbon and it's very similar in
many ways to diesel fuel
we thought gosh we can turn our
attention now to fuels we could make a
few changes in that microbe to turn it
into a fuel-producing microbe
if we imagine that glucose is going to
be our new petroleum we need a source
for that glucose so the crops that we're
looking at are crops like switchgrass
this is a native grass that grows
without a lot of water and on marginal
lands but we could turn into energy
farms
the challenge though is that unlike
sugarcane it's very difficult to get the
sugar out of that biomass
so we use what we call a pre-treatment
process to extract the glucose from the
plant and then we feed that glucose
to a yeast that we've engineered to
produce hydrocarbons and that yeast
takes in the sugar
and it changes its composition and gives
us this high energy molecule
they float to the top you skim them off
you put them in your tank
but it takes a lot of work to get from
that small test tube all the way up into
the million gallon tank so we have to
give it time but i think that some of
the discoveries that are happening might
be applied by the end of the decade
[Music]
in terms of a sustainable equation for
the planet the role of biofuels is quite
tricky there are a variety of crops that
do not compete directly with food and
finding ways to utilize those types of
crops first that's very attractive so
solving the science is part of the story
but then evaluating all of these new
fuels in terms of the land use impacts
that they could have that is an even
harder story than doing the good science
imagine that you could have one process
that could take in sunlight and carbon
dioxide and turn it into fuel
and imagine if that didn't involve
growing anything at all
[Music]
the synthetic biologists are trying to
take plants and make them do things that
they wouldn't normally do
on the other hand materials chemists
like myself want to do artificial
photosynthesis
to improve on the process that nature
does in real photosynthesis
[Music]
we should follow the blueprint of plants
converting sunlight into fuel but take
the approach that it could be much
simpler all we really need is a light
absorber that absorbs sunlight we also
need a catalyst like iron or nickel
so when you see the hydrogen coming off
of a photoactive material that's an
example of a semiconductor breaking the
chemical bonds of water to make hydrogen
and oxygen ultimately our pieces are
going to be contained in something that
is easy to roll out like bubble wrap or
in would come sunlight and water
you would vent the oxygen to the air but
the bottom would wick out your liquid or
gaseous fuel that then you could collect
and use for our cars and planes and
storage
[Music]
our goal is within two years to have the
first
artificial photosynthesis a solar fuels
generator that we can hold in our hands
and then get to scale beyond that time
we're certainly not good at predicting
the future but to me electric vehicles
look like a sustainable option we've
heard proposals about things as far
fetched as nuclear power planes and even
some proposals to move freight around
with lighter than air vehicles and so if
the future in 2050 does include a fair
amount of oil what it means would be
that we haven't deployed
as many of these clean technologies as
we already know are possible
if you think about how long it's taken
for us to build up the petroleum
industry we can't hope to reverse that
overnight it's huge change in our
infrastructure yes we should have been
working on it 30 years ago
we didn't we're trying to make up for
that and that means basic research needs
to be done now and by as many people as
possible
we have a long way to go but i'm
confident that we'll get there
in the future 3d maps are going to help
people get places more efficiently
[Music]
as we just saw the race to produce
cleaner energy is charging ahead in the
meantime demand for cars continues to
climb
by 2050 it's predicted there'll be two
billion cars on the planet and fuel
consumption will have tripled to keep
pace we'll have to radically change the
way we drive
here's our next story driven by design
the automobile came around
in many ways it was the future we
thought of it as one of the more
positive changes that had happened to
society suddenly our ability to get a
job changed
we can live further away with bigger
plots of land with better quality of
living it all looked quite good
but there are limitations to swearing by
the car if it gets congested your
quality of life drops immediately to
spend so long in the car
it's very inefficient use of fuel
consumption
things start making sense all of a
sudden it doesn't bring you closer to
where you want to get it actually
sometimes brings you farther
the average american spends nearly 300
hours a year in their car
38 of them stuck in traffic
annually congestion consumes over 1
billion in gasoline in the united states
alone
the inefficiency caused by traffic both
financial and personal is enormous
[Music]
dirk sheen and carmen white's story is
not that unusual today
dirk works an hour and a half away in
warrenville illinois
generally he wouldn't leave work until 6
or 6 30 and i would say a usual time for
him to get home is around 8.
usually when i wake up i'm the only one
up
sometimes the kids wake up with my
routine more often than not i don't see
them in the morning
i think about my commute when i wake up
i check the traffic report see if
there's any delays
the worst case scenario it takes me two
hours to get to work
we are already so limited in the amount
of time he can spend with the
kids and our expenses are crazy high
we are spending 400 bucks a month on gas
it takes away from our food budget
and we never paid for gas like that
before ever
there's technology that would allow me
to spend less time in the car spend less
money on gas
and spend more time at home
i'd be all for that
the cost of traffic is people's time
it's fuel wasted it's an emotional toll
it's a frustration
utilizing the roads more intelligently
is a much more efficient approach to the
inability to have supply keep up with
traffic demand
if you took a satellite picture of the
highway you can see that there's
actually a lot of open space and
if we had the technology for cars to
drive more closely but safely then you
could increase the utilization of the
road
network what this means is that to be
more efficient to use less fuel we need
to see the road differently
we need cars that can navigate through
the urban landscape in a radically
different way
maps in the future are going to be able
to help people get places either more
safely or more efficiently
today just helps you get from point a to
point b
but what if i want to get someplace and
use the least amount of fuel possible or
if i've got a hybrid vehicle i want to
make sure i've got plenty of charge not
only get there but to get back home
so information that is going to help
people achieve the more efficient or the
safer route is more detailed information
about the road than a lot of people
realize as possible to collect today
here in chicago nokia's location and
commerce unit is developing the next
generation of mapping
lidar sonar
360 degree video
all are components of what nokia calls
digital mapping
we use 64 lasers that rotate and they
collect data in a 3d way
about the world it creates what we call
a point cloud of information that point
cloud allows us to measure distances
then between the points that we collect
that system combined with the cameras
with higher precision location detection
through inertial measurement units that
whole data system allows us to collect
1.3 million points of data per second
probably within two to three years
you're going to see 3d maps that are
going to integrate the traffic
information into your routing to help
you understand if i've got five
different routes to take which one is
the most efficient today given the way
the stop lights are running given the
way traffic is running all of those
factors are going to be taken into
consideration to make sure i've got the
best route
but better mapping that can integrate
topography infrastructure and density is
only part of the answer
another key to improving transport
efficiency
is building cars that drive themselves
autonomous vehicle technology
has a tremendous potential to improve
efficiency of our road infrastructure
by removing humans from the equation we
eliminate all the things we do wrong
behind the wheel
speeding changing lanes too often
merging haphazardly
and by marrying autonomous vehicles with
sophisticated 3d maps we can make
driving safer and more energy efficient
[Music]
that next generation vehicle is being
built right now by the swedish trucking
company scania
the solution is to see it is that the
vehicles can utilize intelligent maps
three-dimensional maps with traffic
information
the vehicles will be intelligent and
communicate with each other they will
talk to each other they will talk to the
infrastructure
and we will see completely autonomous
driven vehicles
the goal was to have multiple robots and
see if they could go 60 miles fully
autonomously
[Applause]
my name's helen taylor my husband john
and i we're very passionate about fuel
economy
yeah it's great to break world records
but that's not the only end all now it's
more important to educate people
together we're showing drivers around
the world simple techniques to improve
their fuel efficiency
we run these education programs get
people on the road with us and we
finally tweak their driving techniques
things like just checking these tire
pressures before you even get into your
car for every one psi your tires are
under inflated you're wasting three
percent of your fuel efficiency and the
difference between 65 and 75 miles per
hour there's a saving of 23 percent
when you talk to the general public
they're very surprised that an energy
company like shell is trying to educate
people how to save money how to reduce
co2 emissions and here we have shell
sending us around the world to do that
you always hope when you're on this
planet that you can make a real
difference in people's lives
when you get emails from people saying
i've saved this amount of money this
year now i can put food on the table
then you know you are really making a
difference
[Music]
by displaying traffic density in the
urban infrastructure in a revolutionary
way
3d digital maps will help create a more
fuel-efficient future
but these technologies are limited by
the drivers who sit behind the wheel
some believe that for cars and trucks to
be truly energy efficient they will need
to drive themselves
the technology is coming into play
through sensors and
capabilities for cars to drive
autonomously
in 2007 the united states department of
defense held a competition to see if a
completely autonomous self-driving
vehicle was possible
darpa stands for the defense advanced
research projects agency
they have a competition to develop
self-driving robots that could drive
themselves in traffic
the goal was to have multiple robots
turn them loose on a course and see if
they could go 60 miles in six hours
fully autonomously
driving may be one of the most complex
things we do every day
drivers make dozens of decisions at any
given moment
one study found that drivers were
exposed over 1300 items of information
per minute
we make so many decisions when we're
driving without even thinking about it
so in creating our vehicle a great
component of the enterprise was
developing software
to handle lots of sensors
feeding lots of data and generating a
bunch of potential paths that the
vehicle might follow
and even though the robot doesn't have
the ability to predict the future
by using this fast random path
generation the robot could anticipate a
potential accident and choose a path to
avoid it because it's always thinking
about what things could the car do next
no one expects millions of cars driving
themselves anytime soon
but there is a place where
self-navigating technologies are being
optimized to create the vehicle of the
future
beyond let's go on your test track
outside stockholm
where we have basically it looks like in
highway but it's a separate test track
where we conduct our own experiments
scania the swedish trucking company has
recently begun testing its next
generation of long-haul truck
utilizing radar sonar and intelligent
mapping they've been able to drastically
reduce fuel consumption
we have this example with platooning
where we
make use of the reduction in in air
resistance or air drag that you get from
driving close to each other with heavy
duty vehicles
and in order to control this you need to
know where the other vehicles are where
their position their velocity their
actions in the near future
and to be very close to the vehicle
ahead of you
requires that you have very accurate
control
if you look at robotics broadly there's
a wonderful set of research on people
looking at schooling of fish and
and trying to develop the ability for
robots to work together like that so
they're wonderful examples from nature
of how cooperation can lead to more
efficient resource utilization
you can see it when people are competing
in tourists
they platoon to reduce air drag
they are not bicycling behind each other
that close but because it's fun
or because they are racing
it is because they are reducing air drag
sitting behind the
man who is leading
a truck traveling 55 miles per hour
expends half its energy just to move the
air around it at 65 miles per hour that
number jumps to almost two-thirds
even if platooning can reduce the energy
used by 10 percent the savings would be
substantial
if a vehicle in front of another vehicle
wants to break it immediately sends out
the brake message to the
other vehicles so they actually break at
the same time
the way we do this is by we have an
automated system so now for instance if
i take my feet off the acceleration
pedal and turn the system on the
velocity is automatically governed by
getting information from the vehicle
ahead through its wireless system
we want these vehicles to maintain a
short relative distance
so through this system we can reduce the
fuel consumption
by utilizing the air drag reduction by
10 percent
and 10 would mean he will be able to
save approximately 8 000 euros per
single heavy-duty vehicle per year
[Music]
it may be some time before autonomous
vehicles make up the majority of cars on
america's highways
nevertheless
some of these technologies are already
making their way into our lives
now this polar baby wants to sleep
do you get to pick up books every day or
is it just something new you get to
pick out books sometimes okay
when we look toward the future
the systems will absolutely make it
safer and more efficient and less costly
for you and also make your life easier
because you're spending less time on the
roads
the city begins to talk begins to tell
you where is their congestion what's
going on in different areas of town
suddenly the car becomes a part of a
much bigger ecosystem
we can look at how cars interact with
other cars how car interacts with
infrastructure and us the drivers
can start to make smart decisions about
how to move around
suddenly mobility becomes a whole other
thing
no matter how much money they have no
matter how much oil they have everybody
has to go in a different direction
[Music]
we've seen that changing the way we
drive can improve transportation
efficiencies
but what if we change the way we build
and live in our cities that's the
subject of our next story searching for
utopia we'll travel to the united arab
emirates and discover a city rising out
of the desert
let's take a look
[Music]
from the beginning we've dreamed of
utopia
a place where we could live in harmony
with each other and in balance with
nature
many have imagined it
tried to design it
but the dream always slipped away
[Music]
then i heard they were building a new
city called mazdar
near abu dhabi in the arabian desert
it sounded like an unlikely place for
utopia and i wanted to see it
[Music]
the last half century has been a pretty
bad time for the making of cities mostly
the natural tendency has been to
accommodate to the automobile more than
anything else
try walking around abu dhabi
it's impossible you have to take a car
everywhere
dubai the same thing
they are among the least pedestrian
friendly places in the world
they are not green by any other measure
either
[Music]
and these are not easy things to fix
[Music]
mazdar is still under construction and
it doesn't look like much from the
highway
but they claim it's going to redefine
the way cities are designed built and
powered
mazda city in abu dhabi will be the city
of the future and the role model for the
world
once you see what they've envisioned for
this utopian city it's very impressive
it's carbon neutral pedestrian friendly
and powered by renewable energies
but i do notice we're going to have to
change our relationship with
cars welcome to monster city
we are driving in the in the bowels of
masdar city in an electric
transportation system
slightly unnerving to seeing this for
the first time and where are we going
the first big move the architects at
foster and partners made
was to put all transportation underneath
the city
leaving the streets of masdar totally
free of cars
the place reminded me of a medieval city
and actually many design elements are
adapted from ancient arabic towns and
villages
it's all about looking back into history
to move forward
there's some very very simple ideas that
have a huge impact
this is a pedestrian zone there's no
cars here this and this has enabled us
to push our streets together to take the
advantage of the shade
channel the cooling breezes through
the whole scale here is based on the
human being it's not based on the motor
car
as soon as you lift up the pedestrian
plane by seven meters you've suddenly
captured this breeze
[Music]
what you can see here in the balcony is
we've got a modern interpretation of an
ancient arabic screen
what we must avoid
is direct sunlight hitting any piece of
glass
as soon as the sun hits the glass the
heat's transferred into the building and
we have to use more energy to cool it
down
can this really make all that much of a
difference yeah absolutely for example
downtown abu dhabi
60 meter wide street black asphalt
mirrored reflective buildings
no relief from the sun
holiday in september the air temperature
in both places was 39 degrees
in abu dhabi
the temperature
measured at the asphalt was 57 degrees
in masdar the temperature measured
on the ground 33 degrees so we've
actually lowered the air temperature
we're trying to do as much as possible
with as little as possible
these simple design moves cut air
conditioning needs by 60 percent
but this place is also technically very
sophisticated
the roof panels not only provide shade
they also generate electricity
and the walls themselves are made of
glass reinforced concrete
literally sand taken from the desert
everything here is geared towards
maximizing energy efficiency
nasdar does represent a whole different
value system
it represents an acknowledgement that
eventually
everybody has to go in a different kind
of direction no matter how much money
they have no matter how much oil they
have no matter anything else
all of the cities here in this part of
the world have come out of nowhere
there was nothing here not so long ago
except small settlements in the desert
and then all of this oil and all this
money and suddenly you know wham
these cities started
popping up
but they sprung up in a false love of a
western model that was already out of
date
the motto of the late 20th century
automobile-based
energy-hogging city
for most of the world energy is very
expensive
but the united arab emirates is sitting
on 10
of the world's oil
and energy is cheap
sochi you can run a ski slope in a
shopping mall
and build the world's tallest skyscraper
but even here cheap energy won't last
forever
and the people behind masdar are
determined to find alternatives
[Music]
one of the most crucial aspects of our
energy modeling and scenario
quantification is how much energy in
total is the world going to use in 2050
[Music]
the scenarios team is a bunch of people
with rich imagination i would say we
have political scientists economists
geopolitical experts really we try to
simplify the complexity all around us
we in the scenarios team are currently
putting a lot of attention into
cities and city development
[Music]
a lot of mega cities are going to be
built in the coming decades we're
talking about the equivalent of a new
city of a million people
every week that is an incredible demand
most of the world's resources are
consumed by the cities
what if we could offer a blueprint for a
better city public transportation
information
energy we understand demand will rise we
understand that current supplies will
struggle to keep pace
so we have to of course find ways of
bridging the gap between the demand and
the supply
decisions that we take now are going to
have a major impact on decades to come
[Music]
there's enough oil under these sands to
last 150 years
but fundamental to the mazda ideal is
getting energy from renewable sources
from geothermal and wind
and most of all from a source they have
in abundance in the desert
the sun
[Music]
this field of solar panels makes more
than enough electricity to run master
and the excess power is sent to the abu
dhabi grid
but silicon panels are expensive and the
price of solar power needs to drop if
it's going to be competitive from africa
to asia
to arizona
in the future
mazdar hopes to get energy from this
prototype called the solar beam down
[Music]
using highly reflective mirrors the
solar beam down may generate power more
cheaply and ecologically than silicon
panels
[Music]
the mirrors bounce the sun's rays up to
the tower
[Music]
and then down to a point
reaching a temperature of 600 degrees
steam can be generated to run turbines
to make electricity
[Music]
there's just one problem
neither of these solar technologies work
at night
so mazda needs to draw power from the
grid when the sun goes down
and that power comes from natural gas
the reality is it's just not yet
possible to power mass star entirely
without fossil fuels
the great challenge with masdar
will be how do you make it a place that
will not be
just this ideal city that no other place
could actually aspire to because it
doesn't seem real
[Music]
what mazdar has to be is a laboratory
that develops things that then can be
applied in existing cities all around
the world because that's where it will
pay off
there's no payoff if it's just about
itself
the payoff is how can everything it's
trying to do
matter in the rest of the world
[Music]
right now there's only a store two
restaurants a bank and a few hundred
students living here
it's too early to tell if masdar will
work as a city when it's finished
but much has been achieved
they are carbon neutral and largely
powered by renewable energies
solutions here won't work everywhere
though
many cities are in cold climates and
cooling is not their energy problem
they need to let sunlight in not keep it
out
[Music]
cities like los angeles or houston are
built around cars
can masdar's lessons be applied to them
still it's a step in the right direction
and it's impressive that this step is
being taken by a country that doesn't
need to take it
i met a guy who said actually they did
need to take it
he took me to the desert to explain
god says
god talks about man's place in in the
universe
that this world is a trust
and uh
god offered this trust to the mountains
to the heavens to uh to the land to
earth
and all
and all refused it refused to take
this trust
but man being you know adventurous
a bit vain maybe too ambitious
being banned
accepted it now accepting it
there is a responsibility
taking responsibility isn't always easy
utopia
may be unattainable
but we must reach for it
and mazdar does give us a clue to what
cities will be like in the
future they may not look quite like
mastar
but they will be shaped by the same
concerns
by energy
where it comes from
and how it's used
[Music]
the way we've been building cities
lately
is
unsustainable
we can't go on building them that way
but to say that we can't build cities
the way we have been building them
doesn't mean we can't build cities in
the future
in fact we have to build cities cities
are the essential statement of human
civilization
so we will continue to make them
but we have to make them in a different
way
what we've seen is that the world of
2050 won't look drastically different
from the world today but the challenges
of a growing population and increased
energy use demand real solutions
it's innovations like those we've just
seen that will be critical in charting
our path to the world of 2050.
you
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