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what happens if you cut down all of a city's trees?, The diet that…
what happens if you cut down all of a city's trees?
cities
be
densely populated
The crowded capital had to continually expand their irrigation system to feed its growing population
chopping down trees to make space for more crops
without trees to filter their water supply
irrigation system became contaminated
Evaporating water left
mineral deposits
(khoáng chất lắng đọng)
which rendered the soil too
salty
for agriculture
poor sanitation
the
oppressive heat
made the city
a breeding ground
for bacteria like cholera
can cause
bronchitis
and
diminished
lung function
Anuradhapura
trees were sacred
irrigation system was designed to work
in concert with
the surrounding forest.
Their city housed an Bodhi tree, under which Buddha himself was said to have attained enlightenment.
Religious
reverence
slowed farmer’s axes
Humanity has been uncovering these arboreal benefits for centuries.
benefits of Trees
Trees act like a natural sponge
absorbing storm water runoff
before releasing it back into the atmosphere
The
webs of their roots
protect against
mudslides
allowing soil to
retain water
and filter out toxins
Their
porous
leaves purify the air by trapping carbon and other pollutants
trees to provide
shade
the presence of
green foliage
increases attention spans
decreases stress levels
Urban Trees
along major arteries
This layout increased the city’s
resilience
to pollution and natural disasters
Trees and
vegetation
currently cover over 50% of Singapore’s landmass,
The diet that helps fight climate change
fact
Whether it’s sugar or grease or carbs
experiment
They track how the way we produce food creates greenhouse gases that contribute to global warming
the team has
crunched the numbers
to figure out how much carbon pollution is produced by different foods and different diets (to do mathematical work involving large amounts of information or numbers)
a single serving of beef= emitting about 330 grams of carbon
ruminant
animals like cows and sheep(nhai lại)
the methane they produce is at least 25 times more
potent
than carbon dioxide
solution
ranchers
are working to raise livestock in ways that help restore the land
be less meat-heavy
fish and poultry a few times a week
plenty of plant-based foods
Eliminating
like 90 percent of your
meat intake
How We Can Make the World a Better Place by 2030
Expectation - a little
fanciful
end hunger
to halve the proportion of people living in poverty
halt climate change
suspend
your disbelief
the
pessimists and doomsayers
who say that the world can't get better are simply wrong
we can pull off our goals (be successful)
not dismiss the goals or
slide int
o pessimism
Reality
we need to
benchmark
where the world is today
against
the Global Goals( so sánh)
Does everyone have the basic needs of survival: food, water, shelter, safety?
Does everyone have the building blocks of a better life: education, information, health and a sustainable environment?
We need to check and
crunch the numbers
(tính toán)
the Global Goals aren't just
ambitious
they're also pretty complicated
Over 17 goals
be quite
bolder
: brave
literally hundreds of
indicators
while some of the goals are pretty specific others are a lot vaguer
promote peaceful and
tolerant
societies
We have countries that are underperforming/ overperforming on social progress,
relative to
their wealth(so vs GDP)
we're not slaves to GDP.