Energy sense? Tom King’s defence of coal (News Weekly, Letters, June 3, 2017) makes good sense – apart from advocating carbon dioxide sequestration. Carbon dioxide is an essential part of our life cycle on earth. With more of it, plants grow faster, need less water and farming is more productive. Palaeontology shows that carbon dioxide levels were much higher in the past and supported larger plants and larger animals than we see now; and with many indicators of a benign climate &nd…
