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Food & Climate
basics
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1. Past and present
2. Predicting the future
- realities and uncertainties
- global changes
- case study. Egypt
- case study. Spain
* Worksheet 1
* Worksheet 2
* Worksheet 3
3. Drought in the Mediterranean
     
 

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Food & Climate 

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Worksheet: Predicting the future

 Sheet 2: The influence of CO2 on plants and climate
 

Choose 'basics' or 'more' ..

Lower Atmosphere

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Upper Atmosphere

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Weather

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Clouds & Particles

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Climate in Cities

basicsmore

Oceans

basicsmore

Food & Climate

basicsmore

People changing climate

basicsmore
 

 

1. Exercise 

Chemical processes influence the processes in our atmosphere and our climate.

As you have read in the text „What are the effects of climate change on plants?“ the concentration of CO2 constantly rises. CO2 is a gas, which causes damage to our climate if the CO2 concentration is too high. It also changes the conditions for plants an vegetation. On the other hand CO2 also has a positive impact on plants as photosynthesis is advanced.

To find out more about the gas CO2, you can surf the internet. A collection of links concerning the topic CO2 and climate change you find in our linklist.

Can you answer the following questions?

 

1) The chemical formula CO2 is an abbreviation for ...
a) nitrogen oxide
b) carbon
c) carbon monoxide
d) carbon dioxide

2) How high was the CO2 concentration of the air around 1900?
a) 240 ppm (parts per million)
b) 300 ppm
c) 370 ppm
d) 420 ppm

3) How high is the CO2 concentration in the air?
a) 240 ppm
b) 300 ppm
c) 370 ppm
d) 420 ppm

4) How is CO2 metabolized?
a) by the photosythesesis of plants
b) by biodiesel
c) by catalysts
d) by fast driving with cars

5) How does CO2 have influence on our climate?
a) Due to the CO2 concentration there are less precipitations world wide.
b) Due to a higher concenctration of CO2 there might be snow and frost at the equator.
c) Due to a higher concenctration of CO2 there will be a global warming.
d) Due to a higher concenctration of CO2 there will be a global cooling.

6) What arises from the photosynthesis under the influence of light?
a) glucose
b) water
c) nitrogen
d) carbon dioxide

7) How can CO2 emissions be reduced or prevented?
a) Travel by planes instead of cars.
b) Heat flats and houses by oil only.
c) Make use of more energy.
d) Win energy by using solar techniques.

Quiz results:

Questions you got right:

Questions you got wrong:

Grade in %:

Attention: This quiz is optimised for internet explorer or new versions of Netscape!
If the little solution window disappears, just reopen it from the task row!

 

2. Exercise 

Due to the consumption of energy and the heating of private households the emission of CO2 is increased.

Ask your parents how much energy is needed in your household (for heating oil, natural gas, petrol, electric current).

Then calculate the amount of CO2 being emitted with the help of the following formula:

 

1. Heating oil Formula:

_____________ litre/year ∙ 0,0027 = _____________ t CO2/year

2. Natural gas Formula:

_____________ m3/year ∙ 0,0002 = ______________t CO2/year

3. Petrol/diesel Formula:

 ____ km/year ∙ ____ litre/100 km ∙ 0,000027 = ____ t CO2/year

4. Electric current Formula:

 ____________ kWh/year ∙ 0,00069 = _________ t CO2/year

5. Kerosene Formula:

____________ km/year ∙ 0,00025 = _________ t CO2/year

 

Now print out the following worksheet and calculate the CO2 consumption!

 

Clipart courtesy by Hemera - Big box of art

 

4. Linklist

CO2 and climatic change:

http://www.co2science.org/center.htm
http://www.guardian.co.uk/climatechange

Calculation of CO2 emission

http://www.co2.org/calculator/index.cfm
http://www3.iclei.org/co2/co2calc.htm

 

 

About this page:

- Author: B. Wohlhöfer - University of Nürnberg - Germany
- scientific reviewing:
- educational reviewing: Dr. Schrettenbrunner / J. Heres
- last update: 17.12.03

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last updated 11.07.2005 13:31:47 | © ESPERE-ENC 2003 - 2013