greenhouse effect

fever hot weather warmth

calefaction fieriness hotness incalescence incandescence sultriness torridity warmness

calidity dog days heatwave hot spell torridness

chill

cold cool coolness frigidity

abuse corruption deterioration infection

adulteration blight decomposition defilement desecration dirtying foulness impairment impurity misuse profanation rottenness soiling spoliation taint uncleanness vitiation

besmearing besmirching fouling polluting tainting

sterility

cleanliness purification