To the Editor: The relationship between population, climate warming and environmental impact has been little discussed in the Australian medical media and often ignored in the wider Australian media. All doctors should have a good working knowledge of the science of climate change and its correlation with increased human activity. Six billion humans (circa 2000 ad) have a greater environmental impact than one billion humans (circa 1800 ad), and this increase correlates with deterioration in nature’s “free goods”, such as clean air and water.
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