22 - Havets vandstand stiger

22 Kilde : IPCC Et ekstremt men ikke usandsynligt scenario 50 cm 80 cm 20 cm Globale havniveau stigning siden 1900 Havets vandstand stiger
Set 1 www.climatefresk.org Globalt er havniveauet steget 20 cm siden år 1900 . Havniveau stiger, dels fordi smeltende iskapper og gletsjere tilfører mere vand, og dels fordi vandet udvider sig, når det varmes op. 22

3
Causes

Gletsjerne smelter

Gletsjerne smelter

A melting of 100 gigatons of ice per year is equivalent to about 0.28 mm per year of mean sea level rise. Thus, 15 to 35% of sea level rise is linked to the melting of glaciers, according the IPCC scenarios. 30% to 35% is linked to the expansion of water. The remainder is linked to the melting of the ice caps.
Havtemperaturerne øges

Havtemperaturerne øges


Indlandsisen smelter

Indlandsisen smelter


1
Consequence

Oversvømmelser ved kysten

Havets vandstand stiger


2
Wrong causes

Havisen smelter

Havisen smelter

This it the trap in which participants can fall while playing with cards set n1. Therefore, do not ask them to read the cards from the beginning. Once they have put them in place, ask them to read the texts.
Forstyrrelse af vandets kredsløb

Forstyrrelse af vandets kredsløb

No, more rain is not going to cause the oceans to overflow! This is a rare mistake to be made, but if it happens to you, ask the players where rainclouds come from...
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