Pollution dome
A pollution dome is a mass of polluted air that is trapped temporarily over a city or industrial area.
Political migrant
A political migrant is a person who moves from their country of birth due to political reasons.
Pole
The pole is the point located at 90°N or 90°S.
Polar regions
The polar regions are the frigid zones located near the North and South poles, approximately between 66°-90° N and S.
Radiation
Radiation is the transfer of heat in the form of waves.