Black carbon and global temperature

1. Work in pairs. Match the words with their meanings.

(Làm việc theo cặp. Nối các từ với ý nghĩa của chúng)

Answer:

1. soot - c. tiny pieces of black dust that are produced when wood, coal, etc. is burnt

2. melt - a. to make or become liquid by heating

3. crop - d. a plant such as rice or fruit, grown by farmers and used as food

4. soil - b. the upper layer or the earth in which trees and plants grow

2. Listen to a talk and choose the main idea.

(Nghe một bài nói và chọn ý chính)

A. Farmers produce the largest amount of soot.

B. Black carbon contributes to burning crop waste and wildfires.

C. Black carbon emissions come from several sources and affect the earth’s temperature.

Answer:

HS tự thực hiện.

3. Listen to the talk again. Choose the correct answers A, B, or C.

(Nghe nói chuyện một lần nữa. Chọn câu trả lời đúng A, B hoặc C)

1. The world’s biggest source of soot is ____________.

A. burning forests

B. burning crop waste

C. killing living things in the soil

2. Black carbon only stays in the atmosphere for a few ____________.

A. hours B. days or weeks C. months

3. Black carbon speeds up _______________.

A. the release of sunlight into the air

B. burning of crop waste

C. ice melting

4. The next part of the talk will probably be about ______________.

A. ways to reduce black carbon emissions

B. heat-trapping gases

C. other heat-trapping pollutants

Answer:

HS tự thực hiện.

4. Work in groups and answer the questions.

(Làm việc theo nhóm và trả lời câu hỏi)

Is black carbon found in your city or neighbourhood? If so, where does if come from?

Answer:

Llack carbon is a common air pollutant found in many urban areas around the world.

Black carbon primarily comes from the incomplete combustion of fossil fuels, biomass, and biofuels. Sources of black carbon emissions can include transportation (e.g., cars, trucks, buses), industrial processes, and residential cooking and heating (e.g., wood-burning stoves).

In urban areas, the most significant sources of black carbon emissions are typically transportation and residential heating. In developing countries, biomass burning for cooking and heating can also be a significant source of black carbon emissions.

It is important to note that black carbon is not only a local pollutant but also a global one. It can travel long distances through the atmosphere and contribute to climate change by absorbing sunlight and warming the atmosphere.