To better understand New Zealand’s high rates of skin cancer, the UV climate of New Zealand is discussed in relation to other locations, and the factors contributing to geographical differences in UV are explored. Historical and projected future changes in UV are discussed in the context of what would have happened without implementation of the Montreal Protocol to protect the ozone layer. The effects of interactions due to future climate change are also discussed. Finally, the effects of our unique UV climate on human health are discussed briefly; along with changing public advice.

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