Climate scenarios for Norway predict an increase
in temperature, a longer growing season and more
precipitation in most parts of the country (Hanssen-
Bauer et al., 2015). More precipitation will likely
have a negative effect on water quality because of
the increased fluxes of nutrients like phosphorus (P)
and nitrogen (N) into rivers and lakes. (Deelstra et al,
2011). Higher water temperatures are favorable to
cyanobacteria, which could grow faster and create
toxic waters. Even today, Norway experiences large
problems related to heavy precipitation; for instance
flooding, erosion, nutrient loss and damage to infrastructure.
If precipitation continues to increase, the
need for more or more effective mitigation measures
in agriculture would become necessary.