Changes to the Atmosphere- Climate Change

Question 1

Which layer of the atmosphere does the greenhouse effect occur?

Describe the 3 stages of the natural greenhouse effect?

Answer 1

Troposphere.

1. The sun’s energy gets into the atmosphere
2. Water vapour and gases absorb, then absorb the sun’s energy
   - Also, land and oceans absorb the sun’s energy
3. Earth is therefore heated
4. (Additionally)
   - Some Heat travels to space from earth

Question 2

What are the 3 main greenhouse gases responsible for the greenhouse effect?

Answer 2

1. Carbon dioxide
2. Nitrous oxide
3. Methane

Question 3

Outline 3 human activities contributing to climate change?

Answer 3

1. Generating power/manufacturing goods
   - Burning fossil fuels for
2. Electricity
3. Heat
4. Energy
   - Needed to make goods
   - Increases global emissions
5. Cutting down forests
   - When trees are cut they emit carbon
   - It was stored in them
   - Increases global emissions
6. Using transportation
   - Run on fossil fuels
   - Emit greenhouse gases - in particular carbon dioxide
   - Increases global emissions

Question 4

Compare the human induced greenhouse effect and the natural greenhouse effect.

Answer 4

Natural Greenhouse Effect:
1. Cannot be prevented
- Humans must realise this
- Must take action
2. Caused by the atmosphere trapping the sun’s heat
3. Needed for us to flourish
- Traps heat energy from the sun

Human Induced Greenhouse Effect:
1. Can be prevented
- Humans can use renewable resources
- Eat less beef
2. Caused by human activity
- Burning fossil fuels
- For energy
3. Unnecessary huge increase in global emissions
- This is not like heat coming from the sun that is needed for earth to be livable

Question 5

Describe the 3 impacts of climate change.

Answer 5

1. Increased drought
   - More people will be deprived of water
2. Melting glaciers
   - Rises sea levels even more
   - Increase in destruction of the coasts (Coastal erosion)
   - Increases chances of storms
3. Severe storms (could be a an impact of melting glaciers/rising sea levels)/forest fires
   - Species are in danger
   - Could die

Question 6

Outline a way to stop the increase in carbon emissions

Answer 6

1. Using renewable energy
   - Emit barely/no greenhouse gases
   - Reduction in the number of fossil fuels being burned
   - When more people are using renewable energy
   - Decrease in carbon emissions

Question 7

Evaluate this way of stopping the increase in carbon emissions.

Answer 7

Evaluation - Partially effective
1. Positive (Firstly)
- Better than emitting carbon emissions into the atmosphere
- (Because) emits barely/no greenhouse gases
- (Additionally) - If everyone switches to using renewable energy
- Less carbon emissions are emitted
2. Negative (Secondly)
- Controversial opinions
- (Additionally) - Not everyone will agree
- Some may only care about themselves
- It may not affect them