Water, Carbon + Climate

Question 1

What is an example of positive feedback in the water cycle?

Answer 1

Temperature increase
=cryospheric stores are shrinking
=Less Ice caps to reflect suns energy
= Even more temp increase

Question 2

What is an example of negative feedback in the water cycle?

Answer 2

Temp Increase
=More evaporation
=More cloud cover
=Suns energy reflected
=Temp decrease

Question 3

What is an example of positive feedback in the carbon cycle?

Answer 3

Temp increase
=cryospheric stores of carbon decrease
=carbon released building more greenhouse gases
=More temperature increase

Question 4

What is an example of negative feedback in the carbon cycle?

Answer 4

More carbon dioxide in the atmosphere
=More plant growth
=More photosynthesis
=more carbon dioxide removed from atmosphere.

Question 5

How does the carbon cycle depend on water?

Answer 5

Carbon combines with water when chemical weathering occurs removing carbon from the atmosphere.
Water is also needed for photosynthesis which removes carbon from the atmosphere.

Question 6

How does the water cycle depend on the carbon cycle?

Answer 6

The amount of carbon dioxide in the atmosphere affects global temps= affects the level of evaporation and precipitation.

Question 7

How does climate change affect life on Earth? (5)

Answer 7

1) The pattern of precipitation= water shortages.
2) Extreme weather events (e.g. storms, floods and droughts)
3) Agricultural productivity will decrease = food shortages.
4) Sea levels are expected to rise further.
5) The geographical spacing of species will change. New species may damage ecosystems causing extinction.

Question 8

What is the IPCC?

Answer 8

The intergovernmental panel on climate change.

Question 9

How are individuals trying to influence climate change?

Answer 9

• Choosing eco friendly travel
• Making homes energy efficient (double glazing and insulation)

Question 10

How are humans trying to influence the carbon cycle at a regional and national level?

Answer 10

• Reducing the reliance on fossil fuels for heating and power. (Renewable energy: wind and solar)
• Afforestation
• Carbon capture and storage underground.

Question 11

How are humans trying to influence the carbon cycle at a global scale?

Answer 11

• Cross-country agreements. (Paris Agreement)
• Carbon trading schemes (limits on the emissions).

Question 12

What was the Paris agreement?

Answer 12

The Paris agreement of 2015 is an international treaty to control the amount of greenhouse gases released.