TH3_chapter 8.1-part 2

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TH3_chapter 8.1-part 2

ecological footprint is

1. the effect you have on the planet
2. the population rate
3. another word for climate change
4. the use of green energy

Watch the video on the next slide & fill in the questions on your worksheet

1. Why is the natural greenhouse effect good for life on earth?

Answer:

It warms the earth to just the right temperature to sustain life on our planet.

Without the Natural greenhouse effect it would be too cold for life on earth.

2. What are some examples of greenhouse gases? 

Answer:

- Methane (for example from cow farts)

- Carbon dioxide (for example from burning fossil fuels like oil) - Water vapor

3. What is the cause of more greenhouse gases in the earth? 

Answer:

Human activity, for example burning of fossil fuels (oil, gas, coal).

Because of human activity, more greenhouse gases are in the air, enhancing the greenhouse effect.

4. What is the effect of the increase in greenhouse gases in the atmosphere?

Answer:

More heat is trapped in the atmosphere, which causes the earth to warm up more.

5. 5. How can the enhanced greenhouse effect lead to rising sea levels?

Answer:

When the earth warms up more, ice caps will melt more. The water from the land ice will flow into the sea, causing the sea level to rise.

What is the enhanced greenhouse effect?

1. Emissions of extra CO2 in the atmosphere
2. A sun shining on a greenhouse
3. Extra oxygen in the atmosphere
4. Sun rays on the windows

What causes the greenhouse effect to increase?

1. Oxygen
2. The hole in the ozone layer
3. More greenhouse gases
4. Higher temperatures on earth

Greenhouse effect is influenced by...

1. The amount of solar rays hitting the earth
2. The temperature on the ground
3. The amount of gases in the air
4. The percentage of reflected sunshine

On the worksheet: make a drawing of the greenhouse effect.

This should include:

- The sun

- The earth

- The atmosphere

- Greenhouse gases (for example CO2)

- Sun rays

Does your image look similar? Make changes if necessary

Read the text about the natural and enhanced greenhouse effect.

Explain in your own words the difference between the two

Write down the  between the 2 in your own words.

natural greenhouse effect

enhanced greenhouse effect

too much co2

global rise of 2 degrees 

climate change

whichout this it would be -18 on earth

sea level rise

natural warming effect

Sun as the engine

human as engine

This is a layer of gases surrounding the planet

1. atmosphere
2. sphere
3. thermosphere
4. exosphere

Which of these are greenhouse gasses?

1. CO2, methane, water vapour
2. CO2, water vapour, oxigen
3. CO2, oxigen, H2O
4. Methane, nitrogen, oxigen

The average temperare on earth is 15 degrees celcius. What would the average temperature on earth be without the greenhouse effect?

1. 11 degrees
2. 0 degrees
3. -7 degrees
4. -18 degrees

71% of all CO2 emissions are caused by

1. 10 companies
2. 100 companies
3. 1000 companies
4. 10000 compagnies

... % of the (wealthy) world population emits the same amount of CO2 as the poorest half of the world population

1. 1
2. 5
3. 10
4. 20

the wealthiest 20% of the world population is responsible for roughly ... of the total CO2 emision

1. 25 %
2. 45%
3. 65%
4. 85%

Watch the video on the next slide and answer the questions on your work sheet 'causes and effects of climate change'

1. Why did greenhouse gases increase a lot since the industrial revolution?

Answer:

During the industrial revolution humans started to burn more and more fossil fuels for factories. By burning fossil fuels, greenhouse gases are being released into the atmosphere.

Oceans

Melting glaciers lead to  rising sea levels and flooding of coastal regions 

Weather

Weather will become more extreme

This means: 

More intense storms, floods, heavy snowfall, longer  and more droughts.

Food sources

Growing crops becomes more difficult

Areas where plants and animals can live shifts.

Water becomes more scarce .

Health

Because of higher temperature in urban areas there will be more smog.

This can lead to health problems, such as asthma, long cancer and heart problems

3. Solutions climate change 

Instead of fossil fuels we can use renewable energy.

Examples of this are:

- Solar energy

- Wind energy

Fossil Energy

Sustainable energy

Water

coal

Oil

Wind

Solar energy

Gas

More Co2

Renewable

Statement: Climate change leads to more extreme periods of drought

1. True
2. Not true

What are the consequences of climate change?

1. Oceans warming and sea levels rising
2. More extreme weather patterns
3. Growing crops for food becomes more difficult
4. Health problems

Done with the worksheet?

Make homework:

- Read chapter 8.1

- Fill in summary assignment online

- Read Geo Guide G142 Enhanced Greenhouse Effect

- Make assignment 3 + 9 from chapter 8.1