En-en adult card 32 decline agricultural yields: Difference between revisions
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== Explanation == | == Explanation == | ||
This is one of the greatest threats to humanity. Declines in agricultural yields have already led to conflicts in Rwanda and Syria. | |||
== Facilitation tips == | |||
=== Local or global impacts === | |||
It may be interesting to differentiate between local and global causes. Localised causes are : | |||
* [[En-en adult card 26 river flooding|River Flooding]] | |||
* [[En-en adult card 30 droughts|Droughts]] | |||
* [[En-en adult card 33 marine submersion|Marine Submersion]] | |||
* [[En-en adult card 34 cyclones|Cyclones]] | |||
* [[En-en adult card 35 forest fires|Forest Fires]] | |||
The non-localized causes are : | |||
* [[En-en adult card 20 disruption water cycle|Disruption of the water cycle]] | |||
* [[En-en adult card 21 temperature rise|Temperature rise]] | |||
* [[En-en adult card 25 terrestrial biodiversity|Terrestrial biodiversity]] | |||
* [[En-en adult card 31 freshwater resources|Freshwater resources]] | |||
== Other possible links == | |||
=== Causes === | |||
[[En-en adult card 12 carbon sinks|Carbon sinks]] Studies have shown that yields increase with increased CO2, but that the nutrient content of vegetables is reduced. Indeed, trace elements are not more abundant because yields increase. | |||
Revision as of 16:11, 10 February 2021
Card #32: Decline Agricultural Yields
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Food production can be affected by temperature, droughts, extreme weather events, floods and marine submersion (e.g. the Nile Delta).
Explanation
This is one of the greatest threats to humanity. Declines in agricultural yields have already led to conflicts in Rwanda and Syria.
Facilitation tips
Local or global impacts
It may be interesting to differentiate between local and global causes. Localised causes are :
The non-localized causes are :
Other possible links
Causes
Carbon sinks Studies have shown that yields increase with increased CO2, but that the nutrient content of vegetables is reduced. Indeed, trace elements are not more abundant because yields increase.