W&C: Water, Carbon and Climate Flashcards Preview

AS/A-Level Geography > W&C: Water, Carbon and Climate > Flashcards

Flashcards in W&C: Water, Carbon and Climate Deck (15)
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1

What forms the base of most food chains?

Plants

2

What does photosynthesis require inputs of?

Both water and carbon

3

What does the natural greenhouse effect prevent?

Prevents some energy from escaping into space and reflects it back to earth.

4

Without the natural greenhouse effect, what would happen to earth?

It would be frozen and uninhabitable. 

5

Enhanced greenhouse effect. 

Additional greenhouse gases reflect more energy back to the Earth than in the natural greenhouse effect, so temperature increases even further. 

6

Give an example of positive feedback in the water cycle:

7

Give an example of positive feedback in the carbon cycle:

8

Give an example of negative feedback in the carbon cycle:

9

Give an example of negative feedback in the water cycle:

10

Give 3 examples of how the water + carbon cycle interact:

  • Carbon + water in atmosphere allows chemical weathering
  • Water needed for photosynthesis, which removes carbon from atmosphere
  • Atmospheric COlevels affect global temperatures = affects evaporation = affects precipitation

11

IPCC

Intergovernmental Panel on Climate Change

12

What is the IPCC?

Set up by the UN and states that countries need to reduce CO2 emitted by human activities.

13

On an individual scale how can people mitigate the impacts of climate change?

  • Reduce car usage / buy more fuel efficient cars
  • Make homes more energy efficient

14

On a regional and national scale how can people mitigate the impacts of climate change?

  • Reduce reliance on fossil fuels by increasing renewable resource accessibility
  • Afforestation + restoring degraded forests
  • Improve public transport + green spaces
  • Invest in carbon capture and storage 

15

On a global scale how can people mitigate the impacts of climate change?

  • International treaties, eg. Paris Agreement
  • Carbon trading schemes - limit emissions