Prolonged exposure to UV-B light can cause sunburn, and there are worries that damage to the ozone layer may lead to an increase in the incidence of skin cancer.
Too much sunburn can lead to cancer and extreme thirst.
( z1 possible :ARG1 ( z2 lead :ARG0 ( z3 burn :ARG2 ( z4 sun ) :ARG1-of ( z5 have-quant :ARG2 ( z6 much ) :ARG3 ( z7 too ) ) ) :ARG2 ( z8 and :op ( z9 cancer ) :op ( z10 thirst :degree ( z11 extreme ) ) ) ) )