Unit 3 e 12 reading

The effect of soot on human health c.. Nowadays we know a lot about the link between carbon dioxide C02 emissions and global warming.. However, we seem t o be unaware of one very dangero

THE GREEN MOVEMENT

UNIT 3

READIN G

BLACK CARBON POLLUTION

soot [sut] (n) bồ hóng, bụi than

['di:zl 'vi:hikl] xe động cơ diesel

melting of the arctic

['ɑ:ktik] tan chảy băng ở Bắc Cực

Activity 1: Match the pictures with the appro

priate phrases

Activity 2: Choose the appropriate heading fo

r each paragraph

a Soot and global warming

b The effect of soot on human health

c The origin of soot

d Ways to reduce soot emissions

Nowadays we know a lot about the link between carbon dioxi

de (C02) emissions and global warming However, we seem t

o be unaware of one very dangerous pollutant, soot also calle

d black carbon.

1.

Soot comes from the incomplete combustion or coal, oil, woo

d and other fuels In other words diesel engines, vehicle exha ust pipes, farming machines, construction equipment, or simp

ly fires in grills, fireplaces, and stoves are potential sources of soot It appears in our daily life and can easily affect every on

e of us.

c The origin of soot

Soot like all black things absorbs sunlight and heats u

p the atmosphere According to recent research, it is t

he second most damaging greenhouse gas after C02, a

nd twice as harmful to the climate Although black carbon remains in the atmosphere for no more than seve

n days it is particularly damaging to frozen areas Soo

t emissions might be responsible for the quick meltin

g of the Arctic Controlling black carbon can help to slow down global warming

a Soot and global warming

Soot does not only have an impact on globs warming and climate change, but is also unhealthy A soot particle is very tiny - smaller than dust and mould, and about 1/30 the width of a human hair It can easily go in

to our bloodstream and lungs via the nose and throat

As a result, breathing in the tiny particles car cause asthma attacks, heart disease, bronchitis and many other respiratory illnesses

b The effect of soot on human health

Large quantities of man-made soot enter the atmosphere every year The effects are most damaging regionally, e specially in South and East Asia, Latin America and par

ts of Africa In developing countries, reducing soot emis sions can be achieved by replacing traditional stoves wit

h clean, alternative fuel cookers and heaters Installation

of filters to remove black carbon from diesel vehicles ca

n also reduce soot Changing to electric or hydrogen veh icles will also reduce the impact on the environment.

• In conclusion, reducing black carbon will have immedia

te benefits in slowing down global warming and the mel ting of the Arctic snow and ice It would also prevent m any soot-related deaths and illnesses.

d Ways to reduce soot emissions

Activity 3: Complete the sentences with no mo

re than 5 words

know little about soot.

oil, wood, and other fuels.

second most damaging greenhouse gas smaller than dust and mould/very tiny.

clean, alternative fuel stoves

Activity 4: Discussion Question: Are soot emissions a proble

m in your community in Vietnam in general?

• the effect of soot on the environment and human health

• Soot does not only have an impact on glo

bs warming and climate change, but is als

o unhealthy

• It can easily go into our bloodstream and lungs via the nose and throat As a result, breathing in the tiny particles can cause a asthma attacks, heart disease, bronchitis a

nd many other respiratory illnesses

Consolidation

soot emission

absorb sunlight

heat up the atmosphere

The origin of soot

THANK YOU FOR YOUR ATTENTION