Water, Carbon and Climate

Question 1

Positive Feedback in the Water Cycle?

Answer 1

Temp rise
Evaporation increases
Amount of water vapour in the atmosphere increases
Greenhouse effect increases

Question 2

Negative Feedback in the Water Cycle?

Answer 2

Temp rise
Evaporation increases
Amount of water vapour in the atmosphere increases, more clods form
Cloud cover reflect sunlight back into space
Temperature falls

Question 3

Positive Feedback in the Carbon Cycle

Answer 3

Temp rises
Plant respiration increases
CO2 in atmosphere increases
Greenhouse gas effect increased.

Question 4

Negative Feedback in the Carbon Cycle?

Answer 4

CO2 in atmosphere increases
CO2 causes more plant growth
Plants then remove CO2 from the atmosphere
Reduction in atmospheric CO2

Question 5

Effect of Climate change on the earth?

Answer 5

Pattern of precipitation changes
Extreme weather events more frequent
Agricultural productive decrease
Sea levels rise
Limit range of species, damage ecosystem, cause extinction
Plankton numbers decline, marine food chain impacted

Question 6

Human influence on Carbon Cycle?

Answer 6

Extracting and burning fossil fuels.

40% more CO2 in atmosphere than there was in 1975

Question 7

Humans attempt to tackle climate change?

Answer 7

The Intergovernmental Panel on Climate Change IPCC
Set up the UN to share knowledge about climate change.
Attempt to reduce CO2 emissions, prevent global temp rise.

Question 8

Humans mitigation attempts to reduce impacts of climate change?

Answer 8

INDIVIDUAL - less use of cars, more fuel efficient cars, make homes more energy efficient
REGIONAL and NATIONAL - reducing cost on renewable energy sources (wind, tidal and solar), afforestation, improve public transport, invest in carbon capture and storage.
GLOBAL - Paris Agreement, international treaty to control greenhouse gas emissions, also international carbon trading schemes.