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Sustainable agriculture | James Gu | TEDxYouth@NIS


[Music]
today I’m going to talk about
sustainable agriculture first let’s
check I if we should change it to a more
sustainable community a lot with the
human population increasing and more and
more people having access to new
technology we are changing a planet as a
rock the speech never seen before in
human history in 2010 for hay 6 the
pinning tons of greenhouse gas was the
image some bombards the earth with the
sunshine and a princess the energy we
need some of the energy will be released
into the space when the process reaches
a balance the global temperature we were
stay stable with huge amount of
greenhouse gas emitted to the atmosphere
year by year
enormous creature or the trapped in
Earth and a push to the global
temperature higher than before compared
to is praying that short times the
global average temperature has increased
1.2 Celsius degree sounds like a male
change global average temperature we
Prudential averaged over the entire plan
the entire surface of the planet so it’s
different from the temperature
fluctuation we experience every day a
two degree drop in global average
temperature temperature bring us into
knitter Ice Age with 5 degree drop many
of you can see a iceberg at your
backyard if you and your house
are lucky to survive another weather so
let’s look at the water quality about a
half a percent of the river water in
Shanghai was undrinkable an aperture 56
of the of the water in Shanghai was and
feature for any perverse about 40% of
the river water in Beijing was surprised
that the who was essentially function is
and you know China is not the worst
thing in water pollution many countries
are even worse than China in 2007 the
word used about 50 or 5.2 pinning pans
of widow killers insecticides and
fungicides and a mesh of these chemicals
ran off to the surface order or niche
the to the corona water evaporated into
the air and I said no then enter a body
surah 4 the chain or air as of 2015
6.3 pinning tons of plastic waste had
been generated in 2014 the global
plastic production is about three
hundred and eleven meaning prints an
average a person use about 45 kilograms
of plastic per year plastic is a
beautiful last in a breaks down into
smaller and smaller pieces and Nelson of
them finally enough you know a body
through the fishing the toxic chemicals
leached out of the plastic and now found
in a tissue and a branch of nearly all
of us so actually we are making more
many more damages to the environment and
to our service I’m not a expert in
pushing and I don’t need to be expert to
understand these just at a Nanjing in
this winter p.m. put two point of our
often stairs around 100 sometimes even
exceeded a 200 so is this the time for
us to make change maybe yes maybe no
this is a question very hard to answer
so let’s check the history of a special
species let amoeba clean give us a clue
to this question last window I read a
book named the ping motor by a truck
avenge who is a practicing surgeon at
the US
professor at Harvard Medical School he
described the table situation of some
cancer patients in this book well I was
preparing that print a presentation the
stories came to my mind
I was curious why these cancer cells
always destroyed it in serve know along
with hosts the new being if you look
closely at the behavior of each cancer
cell actually they are quite smart
they fight furiously with the immune
system and a computer for nutrition with
other cells and you are there winners in
your ecosystem I come across their
learning clay here that taught or occur
which explained remoted here about the
behavior of a kind of fear
you were Bush idea increase that you can
read each you will be shocked by their
intelligence and teamwork so why these
smart wingers kept on destroying the
in-service after watching so many cases
cancer cell society destroyed the Biden
service is obvious for us observers to
find the problem their ecosystem could
in the supported your development
development motor but for every single
cancer cell it’s almost impossible to
find when and how the ecosystem were
crabs they Hal ever seen before
they just live the luckiest generation
by generation and a keep growing and
growing and no we were already reaching
the verge of cliff the neck and
mechanism to pursue the big danger and
an adjusted in serves so let’s get back
to our question is this is a time for us
to change my answer is I don’t know by
watching of history of a case of cancer
cells as a society it’s pretty sure that
was it the pretty sure if we keep
growing like these very unlikely the
ecosystem could collapse we just don’t
know
when and how but it happens only once
anything came over no chance to recreate
to avoid the tragedy of the cancerous
error society as a precaution I think we
should pay attention to this issue
watch out and change it to a more
sustainable lifestyle change into a more
sustainable community is not change the
route of aircraft carrier there’s lots
of work to do before it to have it
considering the pollution agriculture
contributes to the environment and
sustainable agriculture is one of the
color stone of a sustainable community
permaculture is a highly sustainable
farming practice it different from
industry farms it works with the natural
rather than a guest in the natural
sunshine drank Sawyer Punk’s animals
microorganisms or his enemies play
important leader in crop crews we
observe the pattern I will observe the
interactions among these animals and
finally those patterns that pay the
pitch crops grew and we mimic those
patterns they were from to create an
environment that her crops grew cursory
biodiversity is a chorus tone of
permaculture besides crops we planted
many trees in a hopes in a farm much
space is left untouched large from word
flowers and hopes frozen from spring to
early winter and I provided provide
abundant food for insects including
beneficial insects the complicated
interaction among these six peppers
suppressing our burst of pests
so this serve the most of the most of
our pest management work we only need to
pay attention to pest management pest
management instant special season for
some special
vegetables
some animals in a cross innate companion
Nakata can arise after transplanting
glass in the verge we were put a flock
of bats in a refuge
that’s helps control weeds and pests
hina weeding in right spirit is one of
the most harbor worker in the word rice
grows in summer when everything crews
cradling so the bright Sun takes you
from overhead and the hot water in in in
average Chris you from the bottom there
dry snooze break your face
so we without the help of tax we need to
Hannah Witton their rice for twice or
three times in summer with the tax we
only need two to each once or even zero
if everything we were managed a pre
forage microclimate can cure back rough
screw last of all we plunged radishes
are a two different place one was in
urban verge another world is surrounded
by pirates
when occur the wing was growing over the
open fuge using just average a marred
breeze in areas around stir by the reefs
so the these two radishes was sold at at
the same time after few months these
were what they look like you see the
left is the radish in the area
surrounded by the reeds right is in the
open perch so to make a fun permaculture
farmers need to spend a lot of time to
observe the natural the more time we
spend in in in the verge the more chance
we were finally used for patties were
patterns that’s where our improvement
opportunity my edge clean air clean
water food or Sawyer next extreme
weather these are the foundations to
support our lives today many of the
audience a parents will love our
children and want to kill them the pests
to that deserve a pair
her environment 6i I hope a we came like
a lunging an eating sustainable city
thank you
[Applause]
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