Can you answer the following questions on climate change?
Results of modelling for crop yields in the future. Source Rosenzweig and Iglesias, 2002
Changes of temperature, precipitation and CO2 concentration alter the conditions of agriculture and farming.
The text "What may happen to food production in the future?" shows maps which present the changes of agricultural crops.
Then answer the following questions with the help of these maps.
Can you answer the following questions on climate change?
1) In which areas will agricultural crops increase most until the year 2020?
a) in Canada
b) in South America
c) in Australia
d) in Central East Asia
2) What are the predictions about the crops in Middle and South Europe until the year 2050?
a) decrease of 0-2,5%
b) increase of 2,5 - 5%
c) increase of 5 - 10 %
d) increase of 10 - 20%
3) In which areas of the world can the strongest decreases of crops be expected until the year 2080?
a) in India and Mexico
b) in USA and Southeast Asia
c) in China and South America
d) in Australia, Canada and Russia
2. Exercise
Climatic changes have a bearing on plants and agronomic production.
Decide, whether the following statements are right or wrong. Click the green button, if you think, the answer is right and choose the red one, if you think the answer is wrong.
Dry soil, courtesy: Hemera - Big box of art
a) Extreme heat can cause sterility of pollen.
b) The growth period in Northern Europe will be shorter in the future.
c) In areas with low temperatures and long winter there will soon grow fruits, which normally only grew in southern countries.
d) With increasing temperature, it might happen that plants don't flourish that well.
e) The absence of precipitation improves agronomic production.
f) Flooding suffocates the roots of plants.
g) Increasing precipitation without flooding normally reduces the crop.
h) Dryness brings forward the agronomic production.
About this page:
- Author: B. Wohlhöfer - University of Nürnberg - Germany - scientific reviewing: - educational reviewing: Dr. Schrettenbrunner / J. Heres - last update: 2004-01-14 EU
