Student World Atlas (Maailma atlas)
O rganizatio n's (WHO ) annua l mean gu ide hnes for a ir
VlENNA, Austria
fore sr ar ea in West ern and Central Eu ro pe has acru ally increased , but qu ality
many for esrs (nearl y 60%) ar e d am aged due ro acidification , po llution,
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dro ug hr , o r fir es. Overfi shmg-vesp ecial ly 111 rh e North Sea-is a serious
problem for m arine ecos ystems.
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