Welcome to Life Noggin!
Oh you’re actually in the wrong animation channel.
Yeah you’re gonna wanna make a right.
According to a 2015 study,
there are currently over 3 trillion trees worldwide,
which is about 400 trees per person.
That may sound like a lot,
but it’s only about half of what existed before human civilization began.
Trees are an essential part of life on Earth and
if we lost them all,
we would be in a lot of trouble.
So, let’s imagine all the trees disappeared overnight –
what exactly would happen?
Well, to start with, air quality would suffer.
During photosynthesis, trees absorb carbon dioxide and emit oxygen.
在光合作用中 树木吸收二氧化碳 释放氧气
According to the U.S. Forest Service,
trees offset annual carbon dioxide emissions from fossil fuels
by about 15 percent.
Trees also filter out air pollutants
such as particulates, ozone, sulfur dioxide, and nitrogen dioxide.
诸如大气灰尘 臭氧 二氧化硫 还有二氧化氮
So without trees,
we would have less oxygen in the air and
more greenhouse gases that would heat up the planet and
pollutants that would cause health issues and even deaths.
A rise in pollutants would also affect water and soil quality
due to acid deposition,
which can occur in the form of acid rain, snow, fog, or even dust.
会出现在酸雨 雪 酸雾 甚至是土地中
This can hurt forests, lakes, and streams
and the animals that live there,
as well as damage buildings and cars,
and cause respiratory issues like asthma, bronchitis, and pneumonia in humans.
But of course, that’s only
on the rare occurrences when it does rain.
Trees are an essential part of the water cycle.
After absorbing rain through their roots,
they release water vapor into the air through
their leaves in a process called transpiration.
Without trees there would be less rain, possibly leading to widespread drought.
所以说没有树 雨水就会变少 就可能造成大面积干旱
For instance, a 2012 study found that continued destruction
of the Amazon and Congo tropical
forests will result in up to a 21 percent rain reduction
in the area during the dry
season by 2050. Together,
these conditions would hinder crop and agriculture production, eventually leading
to food shortages.
In addition, animals who depend
on forest environments for shelter and food would eventually go extinct.
It is estimated that 80 percent of our land animals and plants live in forests,
a lot of species dependent on trees for survival!
It may take months to years to see these environmental changes,
but trees affect a lot more than
just the environment.
Studies have found that spending time
in forests can have a positive impact on our health by
reducing blood pressure and stress hormones
while improving mood and focus. And planting
trees in urban environments has even been found to reduce crime.
A 2001 study on Chicago found that buildings
with high levels of vegetation had 48 percent
fewer property crimes and 56 percent
fewer violent crimes compared to buildings with
low amounts of vegetation.
The authors of this study theorize
that this is due to having more “ eyes on the street ”
from people using the outdoor space.
They also suggest that trees may alleviate mental fatigue,
which has been linked to violence. So,
it turns out that trees are protecting us
from a pretty terrible world.
Go give a tree a hug.
I think those tree-huggers are on to something…
So are you a person who loves nature?
Do you live in a place with lots of trees, or very few?
Let me know in the comment section below,
or tell me, what should i talk about next?
Curious to know what would happen if the earth only had one season?
Check out this video!
Scientists think the tilt was caused when the Earth was hit
by a Mars-sized object named Theia,
shortly after the Earth was formed.
as always, my name is Blocko, this has been Life Noggin,
最后 我是布洛克 这就今天的品生活
don’t forget to keep on thinking!