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Vertical farming – food production in urban environment | Stefan Parnreiter-Mathys | TEDxLinz


not so long ago in December 2015 I was

invited to a party a friend of mine was

celebrating his PhD was a great evening

we had lots of fun couple of beers

really good homemade food and of course

as he was celebrating his academic

success after a while he wanted to talk

about it and we the guests were

interested to learn more about his work

do you know that most of our food is

highly dependent on oil this was his

question to introduce his work and do

you know we’re running out of soil to

grow our food this was his second

question do you know I was stunned

because was absolutely not aware of that

I was immediately fascinated by those

unknown challenges of food production

and that was thrilled as my friend

claimed to have a solution to those

challenges urban vertical farming

vertical farming as a method to save

soil and allergy a solution to grow

fruit locally where we live in the

hearts of our cities and save this

course resources of our planet I was so

thrilled that I quit my job and joined

my friend she found the vertical forum

Institute so this party two years ago

led my way to you because what I learn

about food production every day in my

work at the vertical farm Institute is

simply mind-blowing and although

actually being a rather quiet person I

have to be here and talk to you because

I eat because a lot of good food and

because I really love our planet and we

seriously endanger this planet because

of the way we produce food today I live

in a perfect world here you see this pin

that’s my house still an urban touch but

in the middle of fields Meadows forests

some farms around I buy locally grown

organic food every Friday at our market

in my hometown Upton Simon I know the

chick will personally whose axe I eat

and the farmer of course that’s my

friend Michael I have my own garden I

grow my own tomatoes and I preserve my

own vegetable what about you if you live

in a similar surrounding you might live

in the same world as me but is this the

world we all are living in let us change

our perspective this is how many people

live today city of Beijing this is where

food comes from

Motoko so in Brazil once a rainforest

now devastated for the production of our

soy beans this is where Tomatoes come

from al meriya

in Spain actually not this is what we

see as tourists this is where tomatoes

really come from and what you see here

are plastic greenhouses plastic covering

an area bigger than Austria’s capital

Vienna so actually this does not look

too good it is really bad this way of

agriculture consumes too much resources

soil and energy it’s absolutely not

sustainable I need to spell this out for

you clearly just as my friend did at the

party two years ago to make you

understand why I could not let this go

it’s all about oil fertilizers consist

of fossil resources fossil resources are

needed to transport the tomatoes from al

meriya

to your table fossil resources are

needed to heat the glass houses where

our domestic Tomatoes grow and fossil

resources are needed to heat the stoves

on which you cook your food fossil

resources this means with everybody you

eat you consume oil really do we really

wanna eat food fueled of fuel 1/3 1/3 of

world’s total primary energy is used for

the food sector fossil resources

hydrocarbon energy oil and this is what

I mean when I speak of energy related to

food so as I said it doesn’t only look

good it’s really bad it’s bad for our

planet and this is only where we are

right now today so let’s have a look

ahead by 2050 were expected to be 9 or

even 10 billion people on earth 70% of

us will live in urban areas and most of

us will live in one of 400 mega cities

on earth how will we feed all those

people already today we use arable land

as big as the whole of South America to

grow our grain not to mention land used

by animals defeat us in 2050 we need

additional arable land as big as

Australia and two whole continent the

good news there still is arable land

available the bad news it’s mostly

covered in the rainforests so the only

way to access new arable land is

deforestation we cut into a planet

screen lung you grow more grain to feed

cows

to have burgers to eat really do you

know what this picture shows each and

every of those spots here hundreds

perhaps thousands is a fire it’s

man-made fires and flamed to burn down

or rain forests cultivate new land

cultivation means destruction in this

case destruction of living environment

for animals insects as people of course

and not even to mention the damage done

to oxygen production this picture was

taken by NASA in spring of 2017

you chose to Congo Delta in Africa it’s

still a bit abstract so let me give you

an idea of the scale the fires burning

here have a size bigger than Italy and

they might still be burning just right

now you think that maybe I’m being

overly dramatic in our supermarkets

there’s so many products labeled as

domestic Austrian products so situation

cannot be so bad at all do we really

need to be bothered about what’s going

on in Brazil or in Africa I see yes we

should be let me give you two figures

about 80 percent of all the tomatoes we

consume here in Austria are imported and

almost 50% of all our livestock products

are imported as well this way of

producing food is not sustainable

our current mass food production is

slowly killing the planet so what can we

do every single one of us here in this

room

by organic locally grown products it

preferably only seasonal fruits and

vegetables eat less meat generally be a

little be a little bit more humble and

try to live by what nature provides if

possible we all here we can change the

world and we will change the world

that’s why we are here today we are not

just bystanders of history we make

history well at least that’s what we

like to think to reach big goals we have

to think really big we have to think

outside the box and we have to bring

food production to where we live

wait a minute outside the box food has

always been grown just where people

lived for eleven thousand years only

until 100 years ago when alongside the

rise of trains and transportation food

was grown elsewhere and brought to our

cities not sold and markets anymore but

in stores and supermarkets spread all

over the cities and this complete

decentralization of food production and

distribution is only possible because a

massive amount of resources split in

soil and energy so to solve this problem

we just do what always has been done but

using today’s technology by growing

locally we cut out transportation by

growing vertically we massively reduce

the soil needed by factor 50 or even

more and by growing an intelligently

designed multifunctional buildings we

massively reduce the energy needed we

can grow food without or almost without

fossil resources our solution today’s

solution of vertical forums remember the

party I told you about years ago my

friend celebrating was Daniel pot music

work is dedicated to vertical farming

and it’s groundbreaking Daniel is the

head of research at the vertical farm

Institute and he has one very strong

vision urban vertical farming in

multifunctional buildings

integrating urban functions such as

markets restaurants offices and using

sunlight as efficiently as possible call

it hybrid system stacked greenhouse

hyper building or simply vertical form

what you see here is the blueprint of

the future of food

that’s not my words according to Dixon

deep for me the godfather of vertical

farming the currently dominant design in

indoor farming is a closed system

controlled environments 100% LED light

an environment rather easy to control

because all the disturbing external

influences a cut out but if we consider

not only soil but also energy and

released scarce resource why do we cut

out the most precious resource we have

sunlight sunlight that’s a matter of

overall energy efficiency but it’s also

a matter of taste the deeper we dig into

plant physiology the more we learn about

so-called secondary metabolites

secondary metabolites or organic

compounds not directly involved in the

normal growth and development of plants

chemical structures adding surplus to

the plants taste among others

researchers by the way also believe that

they are beneficial for human health I

think you all have eaten a tomato grown

in a greenhouse and tasting of

absolutely nothing

it’s those secondary metabolites that

add taste maker food really good and

really healthy and as far as we know

today they need the full range of

sunlight in order to develop not only

the auto

violet and red light as provided by LEDs

so indoor forming as we know it today is

not really a solution but vertical

farming is let me explain to you why and

let me explain to you why our proposal

is so special we want to design

multifunctional buildings for food

production buildings that also provide

other important functions for and to a

city and we want to produce as

sustainably as possible by minimizing

resource input food production in the

heart of the city opens opportunities

for local economy social life public

life we meet at Newmarket areas new

public spaces to buy the food perhaps we

even watched how the food grew over the

last months weeks days we were looking

forward to finally tasting it we form a

new relationship with what we eat as we

see where and how it was grown the black

box as we’ve seen it you remember the

closed system it’s easy to control it

provides very stable conditions and

therefore high predictability of the

outcomes economically seen that might

make sense but why shall we bring the

light to the plants if we can also bring

the plants to the light this question

might seem weird but letting in sunlight

might be the real game-changer in urban

farming as it leads to more energy

efficient production and better and

healthier products so in our forms we

use sunlight to grow the food wow what

instead of putting lots LED in the farm

and turned them on for 16 hours a day we

grow behind transparent facades just as

in a greenhouse simply but still is one

challenge left in buildings as huge as

ours the sunlight does not penetrate the

building completely so the further away

from the facade the darker it gets

inside but we have to make sure that

each and every plant receives the same

amount of daylight and to ensure this we

transport the plants through the

building we deliver the plans to the

facade into the sunlight and for this

transportation we use conveyor belts

depending on design of the building and

a lot of other parameters such as

geography surroundings those belts might

be rotating horizontally vertically or

in three dimensions in any case they

move really slowly and they consume very

little energy yes we also do have LEDs

in our form but they only go on when

were Native triggered by photo sensors

so the overall energy consumption in our

farm is way less than in the black box

and of course by letting in sunlight

we promote the creation of secondary

metabolites and therefore we produce

better and healthier food together with

the Institute of Building and Technology

at God’s University buildings and energy

sorry at God’s University of Technology

we develop what is the future of food

multifunctional vertical forms in the

heart of our cities what we propose here

will be the new normal it’s not today at

least not in Europe Japan or China way

ahead of us a lot of struggling still

lies ahead of us research has to be done

technology has to improve

we have to create acceptance for

products grown endure in the hearts of

our cities and we want to help to raise

awareness and have food and energy

depend on each other but I’m sure

vertical farming plays a crucial part in

securing the future of food and in

securing the future of our planet and I

hope very much I was able today to plant

the seed in your head

[Applause]

[Music] [Applause]

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