Difference between revisions of "En-en adult card 32 decline agricultural yields"

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This is one of the greatest threats to humanity. Declines in agricultural yields have already led to conflicts in Rwanda and Syria.
This is one of the greatest threats to humanity. Declines in agricultural yields have already led to conflicts in Rwanda and Syria.


== Facilitation tips ==
== Facilitation advice ==


=== Local or global impacts ===
=== Local or global impacts ===
It may be interesting to differentiate between local and global causes. Localised causes are :
It may be interesting to differentiate between local and global causes. Local causes are:


* [[En-en adult card 26 river flooding|River Flooding]]
* [[En-en adult card 26 river flooding|River Flooding]]
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* [[En-en adult card 35 forest fires|Forest Fires]]
* [[En-en adult card 35 forest fires|Forest Fires]]


The non-localized causes are :
More global causes are:


* [[En-en adult card 20 disruption water cycle|Disruption of the water cycle]]
* [[En-en adult card 20 disruption water cycle|Disruption of the water cycle]]
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=== Causes ===
=== 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.
[[En-en adult card 12 carbon sinks|Carbon sinks]] Studies have shown that yields increase with increased CO<sub>2</sub>, but that the nutrient content of vegetables is reduced. Indeed, trace elements do not become more abundant when yields increase.


[[fr:Fr-fr_adulte_carte_32_baisse_rendements_agricoles]]
[[fr:Fr-fr_adulte_carte_32_baisse_rendements_agricoles]]

Revision as of 17:11, 21 March 2021

Card #32: Decline Agricultural Yields

Causes Consequences
Front of the card "Decline Agricultural Yields"


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 advice

Local or global impacts

It may be interesting to differentiate between local and global causes. Local causes are:

More global 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 do not become more abundant when yields increase.