🌎🌎The Causes of Climate Change🌎🌎

 Welcome 👦👧boys and girls to another class. Today, we will be going on an adventure where we will be exploring the topic: Climate Change. Read all given information, watch the video clips and do the activities below.

What is Climate Change?

Climate change refers to significant, long-term changes in the average weather patterns of the Earth. While the Earth's climate has naturally changed over millions of years, the current warming trend is happening much faster than ever before. This rapid change is primarily caused by an increase in certain gases in the atmosphere, known as greenhouse gases.

These gases act like a blanket around the Earth. Sunlight enters the atmosphere and warms the surface. Normally, some of this heat would escape back into space. However, greenhouse gases trap this heat, causing the planet to warm up. This is called the greenhouse effect. While a natural greenhouse effect is essential for life on Earth, human activities have released extra greenhouse gases, making the "blanket" too thick and causing the planet to overheat. This is often called global warming.

Human Activities That Cause Climate Change

The main source of extra greenhouse gases comes from human activities. The most significant ones include:

1.     Burning Fossil Fuels: This is the biggest cause. We burn coal, oil, and natural gas to generate electricity, power our cars, and run factories. This releases huge amounts of carbon dioxide (CO₂) into the air.

2.     Deforestation: Forests are crucial because trees absorb CO₂ from the atmosphere. When people cut down trees for farming, building, or wood products (deforestation), we lose these "carbon sinks." The trees, when burned or left to rot, also release the CO₂ they have stored.

3.     Agriculture: Farming activities contribute in several ways. Cows and sheep produce a powerful greenhouse gas called methane when they digest their food. Also, chemical fertilizers used on crops release a gas called nitrous oxide.

4.     Industrial Processes: Factories not only burn fossil fuels for energy but also produce greenhouse gases as part of their manufacturing processes. For example, making cement releases CO₂.

5.     Waste and Landfills: When organic waste (like food scraps) decomposes in landfills without oxygen, it produces methane.

6.     Transportation: Cars, trucks, ships, and airplanes all rely on burning fossil fuels (gasoline and diesel), which release CO₂ and other greenhouse gases into the atmosphere.                                                                                                         

👦👧Boys and girls let us watch the video clips on climate change👇

Click and watch the video      Click and watch the video   Click and watch the video 

👦👧Now that we have learnt about the uses of the environment. Boys and girls, it's activities time!!! 

This section has five different sets of question do all of them.

Task 1: Read all questions before writing your answers.

Instructions: Choose the best answer for each question.

1.     What is the main reason the Earth's climate is currently changing so quickly?
a) Changes in the sun's energy
b) Natural cycles of the Earth
c) Human activities that release greenhouse gases
d) Volcanic eruptions

2.     Which gas is the primary greenhouse gas released by burning coal, oil, and natural gas?
a) Oxygen (O₂)
b) Carbon Dioxide (CO₂)
c) Nitrogen (N₂)
d) Helium (He)

3.     What is the "greenhouse effect"?
a) The way plants grow in a greenhouse
b) The process where gases in the atmosphere trap heat from the sun
c) The cooling of the Earth's atmosphere
d) The name of a new climate-friendly building

4.     Which activity is the largest contributor to global greenhouse gas emissions?
a) Deforestation
b) Burning fossil fuels for energy
c) Agriculture
d) Waste in landfills

5.     When forests are cut down (deforestation), what happens to the carbon stored in the trees?
a) It disappears completely.
b) It is absorbed by the soil.
c) It is released into the atmosphere as carbon dioxide.
d) It turns into oxygen.

6.     Which of the following is a powerful greenhouse gas produced by cows and sheep?
a) Carbon Dioxide
b) Methane
c) Oxygen
d) Water Vapor

7.     Which of these is NOT a fossil fuel?
a) Coal
b) Oil
c) Natural Gas
d) Wood

8.     How do cars and trucks contribute to climate change?
a) They use electricity from solar panels.
b) They release greenhouse gases by burning gasoline.
c) They make a lot of noise.
d) They use a lot of water.

9.     Why are landfills a problem for the climate?
a) They take up too much space.
b) They can be smelly.
c) They produce methane gas as waste decomposes.
d) They attract too many birds.

10. What is a "carbon sink"?
a) A kitchen sink made of carbon
b) Something that absorbs more carbon than it releases, like a forest
c) A factory that produces carbon
d) A type of fossil fuel

11. Which of these human activities is a major cause of deforestation?
a) Planting new trees
b) Creating national parks
c) Clearing land for agriculture and farming
d) Hiking and camping

12. The term "global warming" refers to:
a) The warming of the Earth's core.
b) The increase in the average temperature of the Earth's surface.
c) The warming of the oceans only.
d) A type of weather forecast.

13. Besides CO₂, what is another greenhouse gas released by some farming practices, like using fertilizers?
a) Nitrous Oxide
b) Hydrogen
c) Ozone
d) Argon

14. Which of these is a way humans can reduce the amount of greenhouse gases they release?
a) Driving more cars
b) Using more electricity from coal
c) Cutting down more forests
d) Using renewable energy like solar and wind

15. The greenhouse effect is harmful when...
a) There are no greenhouse gases at all.
b) There are too few greenhouse gases.
c) Human activities add extra greenhouse gases, making it too strong.
d) The sun gets too cold.

16. What is the main source of energy for the Earth's climate system?
a) The moon
b) The sun
c) The Earth's core
d) Wind

17. Which sector (area of activity) uses the most energy from burning fossil fuels?
a) Electricity and heat production
b) Agriculture
c) Waste management
d) Forestry

18. When we burn gasoline in a car, what is the main product that goes into the air?
a) Clean water
b) Carbon dioxide
c) Solid waste
d) Pure oxygen

19. Why is it important to protect forests in the fight against climate change?
a) They are pretty to look at.
b) They provide homes for animals.
c) They absorb carbon dioxide from the atmosphere.
d) They produce methane.

20. The "blanket" of gases that surrounds the Earth and traps heat is made of:
a) Only oxygen
b) Only carbon dioxide
c) A mix of gases, including water vapor, CO₂, and methane
d) Clouds and dust

Task 2:

Read each scenario and answer the question that follows. Think about the causes and effects.

1.A city is growing quickly. To make room for new houses and farms, a large area of forest on the city's edge is being cut down and burned. At the same time, more people are buying cars to get around.
Question: Explain two different ways that the activities in this city are contributing to climate change.

2.A school decides to start a composting program for all food waste from the cafeteria, instead of throwing it in the regular trash which goes to a landfill. They also encourage students to bring reusable water bottles instead of buying single-use plastic ones.
Question: How does the school's new plan help to fight climate change? Connect your answer to the human activities that cause it.

3.A small island nation gets most of its electricity from a large power plant that burns coal. The nation is also building a new factory that will make cement. The leaders are worried about rising sea levels.
Question: Based on what you know about the causes of climate change, why should the leaders be concerned about their country's energy and industrial plans? What is one alternative they could consider for generating electricity?

4.A farmer needs to decide how to manage their land. One option is to clear more forest to raise more cattle (cows). The other option is to keep the forest and plant a variety of trees and crops that can be harvested without destroying the forest.
Question: Which option is better for the climate? Explain your reasoning by discussing the impact of both cattle and forests on greenhouse gases.

Task 3:Write 'True' if the statement is correct and 'False' if it is incorrect.

1.     ______ The greenhouse effect is entirely a man-made problem.

2.     ______ Carbon dioxide is released when fossil fuels like coal and oil are burned.

3.     ______ Deforestation helps to slow down climate change because it creates more space for farms.

4.     ______ Methane is a greenhouse gas that comes from both agriculture and landfills.

5.     ______ Using a bicycle instead of a car for short trips is a way to reduce your personal contribution to climate change.

6.     ______ The only source of greenhouse gases is human activity.

7.     ______ Factories that produce cement do not release any greenhouse gases.

8.     ______ A major cause of climate change is the extra greenhouse gases released by human activities like transportation and electricity production.

Task 4:

Answer the following questions in a few complete sentences.

1.     In your own words, explain what the greenhouse effect is and why human activities are making it stronger.

2.     Describe two specific things you and your family could do to reduce your greenhouse gas emissions. Explain why each action helps.

3.     Why is cutting down forests (deforestation) a double problem for climate change? (Hint: Think about what trees do and what happens when they are gone).

4.     Imagine you are the mayor of a town. Name one major change you would make in your town to reduce its impact on climate change and explain why you chose it.

Task 5: Answers all questions

Word Bank:

Methane	Fossil Fuels	Carbon Dioxide	Deforestation
Greenhouse Gases	Agriculture	Global Warming	Renewable

Instructions: Use the words from the word bank to complete the sentences below.

1.     The burning of ____________________ like coal, oil, and natural gas is the biggest source of greenhouse gas emissions.

2.     ____________________ is the term for the long-term increase in Earth's average temperature.

3.     Trees absorb ____________________ from the atmosphere, so cutting them down is a problem.

4.     ____________________ is the process of clearing forests for other land uses.

5.     Cows and sheep produce a powerful greenhouse gas called ____________________.

6.     Gases that trap heat in the atmosphere are called ____________________.

7.     ____________________ is a human activity that releases methane and nitrous oxide.

8.     Energy sources like solar and wind are called ____________________ energy because they don't run out and produce little to no greenhouse gases.