1)air trevel is usually the largest component of the cacbon footprint of frequent flyers .A single return flight from london to newyork -including the complicated effect on the high atmosphere - contributes to alsmost a quarter of the average person's annual emissions.The easiest way to make a big difference is to go by train or nat take as many flights.

2)The secodt most inportain lifestyle change is to eat less meet with particula emphasis on meals containing beef and lamp .Cows and sheep emit large quantitines of methane ,a power ful glublewarming gas.Avegan diet as much as a 20%difference to your overal carbon impart simply cutting or beef will deliver a significan benefit on it own

cố học nhé

A carbon footprint is historically defined as the total emissions caused by an individual, event, organization, or product, expressed as carbon dioxide equivalent.^[1]Greenhouse gases (GHGs), including carbon dioxide, can be emitted through land clearance and the production and consumption of food, fuels, manufactured goods, materials, wood, roads, buildings, transportation and other services.^[2]

In most cases, the total carbon footprint cannot be exactly calculated because of inadequate knowledge of and data about the complex interactions between contributing processes, including the influence of natural processes that store or release carbon dioxide. For this reason, Wright, Kemp, and Williams, have suggested to define the carbon footprint as:

A measure of the total amount of carbon dioxide (CO₂) and methane (CH₄) emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system or activity of interest. Calculated as carbon dioxide equivalent using the relevant 100-year global warming potential (GWP100).^[3]

Most of the carbon footprint emissions for the average U.S. household come from "indirect" sources, e.g. fuel burned to produce goods far away from the final consumer. These are distinguished from emissions which come from burning fuel directly in one's car or stove, commonly referred to as "direct" sources of the consumer's carbon footprint.^[4]

The concept name of the carbon footprint originates from ecological footprint, discussion,^[5] which was developed by William E. Rees and Mathis Wackernagel in the 1990s. This accounting approach compares how much people demand compared to what the planet can renew. This allows to assess the number of "earths" that would be required if everyone on the planet consumed resources at the same level as the person calculating their ecological footprint. The carbon Footprint is one part of the ecological footprint. The carbon part was popularized by a large campaign of BP in 2005.^[6] In 2007, carbon footprint was used as a measure of carbon emissions to develop the energy plan for City of Lynnwood, Washington. Carbon footprints are more focused than ecological footprints since they measure merely emissions of gases that cause climate change into the atmosphere.

VIII. Write the questions for the answers.

1. A: What is a carbon footprint?

B: It is the amount of greenhouse gases - primarily carbon dioxide released into the atmosphere by human activities.

2.A. What causes carbon emissions? 

B. The burning of fossil fuels in the environment.

3. A. How does carbon footprint affect us? 

B. Carbon emissions contribute to climate change, which can have for humans and their environment.

4.A: How can I calculate my carbon footprint?

B: You need to work out your energy use, water use and waste disposal.

5. A: How can I reduce my carbon footprint?

B: Turn off lights, TVs, computers when you do not need them. Walk or ride your bike instead of using cars. Reduce the amount of trash you create by recycle and reusing items

Write the questions for the answers:
A: What is a carbon footprint?

B: It is the amount of greenhouse gases - primarily carbon dioxide released into the atmosphere by human activities.

A: What causes carbon emissions? 

B: The burning of fossil fuels in the environment.

A: How does carbon footprint affect us?

B: Carbon emissions contribute to climate change, which can have for humans and their environment.

A: How can I calculate my carbon footprint?

B: You need to work out your energy use, water use and waste disposal.

A: How can I reduce my carbon footprint?

B: Turn off lights, TVs, computers when you do not need them. Walk or ride your bike instead of using cars. Reduce the amount of trash you create by recycle and reusing items.

There are several things we can do to reduce our carbon footprint:

(Có một số điều chúng ta có thể làm để giảm dấu chân carbon của mình)

- Consume local and seasonal products

(Tiêu thụ các sản phẩm địa phương và theo mùa)

- Bring reusable shopping bags and avoid products with excessive plastic packaging

(Mang theo túi mua sắm có thể tái sử dụng và tránh các sản phẩm có túi nilon quá nhiều)

- Make sure to buy only what we need, to avoid waste

(Đảm bảo chỉ mua những thứ chúng ta cần, tránh lãng phí)

- Buy responsibly-made clothes, e.g. made from recycled material or with an eco-label

(Mua quần áo được sản xuất có trách nhiệm, ví dụ: làm từ vật liệu tái chế hoặc có nhãn sinh thái)

- Turn off the water while we brush our teeth or do the dishes

(Tắt nước khi chúng ta đánh răng hoặc rửa bát)

- Unplug our electronic equipment and don’t leave our phone on charge when the battery is already full

(Rút phích cắm thiết bị điện tử của chúng ta ra và không sạc điện thoại khi pin đã đầy)

- Limit and recycle our waste

(Hạn chế và tái chế chất thải của chúng ta)

→Natural Gas← viết về cái nè nhé
A natural gas flame
Ervins Strauhmanis, Flickr (link is external)
A gas that is made up mostly of methane and found near other fossil fuels, like coal. Methanogenic processes occurring in landfills and marshes also produce natural gas. Like petroleum, natural gas must first be processed before we can use it as a fuel. It is important to remove most of the other components of natural gas until it is almost purely methane. When combusted, natural gas produces only about half the greenhouse gas emissions as coal does, making it a popular fossil fuel in our increasingly carbon-conscious society. Take a look at these oil- and gas-related maps (link is external) to learn more about natural gas production and reserves in the United States.

XV. Read the passage and answer the question.

A carbon footprint is the amount of carbon dioxide (CO2) released into the air by your own energy needs. You need transportation, electricity, food, clothing, and other goods. CO2 is produced by the burning of fossil fuels which is used to provide energy for your homes, by the cars you travel in and by the manufacture and transport of goods you buy.

Carbon dioxide is also called greenhouse gas, which causes global warming. That is the reason why the carbon footprint is a very poweful tool to understand the impact of personal behaviours on global warming. If you want to contribute to stop global warming, the reduction of your personal carbon footprint is essential. Fist, you can reduce your carbon footprint by driving less. When possible, walk or ride a bike to avoid carbon emissions completely or use public transport in order to decrease CO emissions. Second, support using clean energy sources such as wind, solar, geothermal energy and biogas. Finally, reusing or recycling items you no longer use is also a good way to reduce your carbon footprint.

1. What is a carbon footprint?

A carbon footprint is the amount of carbon dioxide (CO2) released into the air by your own energy needs.

2. How is CO2 produced?

CO2 is produced by the burning of fossil fuels which is used to provide energy for your homes, by the cars you travel in and by the manufacture and transport of goods you buy.

3. What can carbon footprint cause?

It can cause global warming.

4. What should you do to stop global warming?

Driving less, supporting using clean energy sources such as wind, solar, geothermal energy and biogas.

XVI. Read the passage and choose the best answer A, B, C or D to complete the passage.

In many countries in process of industrialization, overcrowded citis present a major problem. The (1) ............ of town is mainly caused by the drift of large numbers of people from the rural areas. The only long-tẻm solution is to make (2)............. in the rural areas more attractive, which would (3)............ people to stay there. This could be achieved by providing incentives for people to go and work in the villages. Moreover, facilities in the rural areas, such as transportation, health and education services should be (4)...........

1. A. population B. popularity C. populous D. overpopulation

2. A. life B. surroundings C. atmosphere D. sights

3. A. insist B. suggest C. encourage D. persuade

4. A. invested B. improved C. impressed D. increased

Bạn nên làm gì để tạo ra lượng khí thải carbon nhỏ hơn?

1 CO2

2 global temperatures

3 showers

4 public transport