Summary

Climate change is posing an increasing threat to the health and well-being of children and young people in Australia and New Zealand, with rising exposure to heat waves and widespread climate-related distress among young Australians, according to the annual MJA–Lancet Countdown Oceania report. The 2026 report finds that exposure to heat waves among infants and older adults in Australia and New Zealand has been more than 60% higher over the past decade than at the turn of the century due to climate change.

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