Let’s consider climate change – the world has constantly changed climate and will continue to do so. Even before human civilisation, the world went through ice ages and periods of global warming There will always be changes that affect our climate, even if we close down all thermal-fired power stations, steel mills and other manufacturing operations, putting employees out of work and drastically changing our way of life. Furthermore, there will always be geothermal activity that spew out heat and ash and this activity does affect the climate I am yet to hear scientific evidence to satisfy me that if the very, very small amount of carbon dioxide in the atmosphere (approximately 0.38 per cent) was increased, it could lead to significant global warming I have never met a geologist or leading scientist who believes adding more carbon dioxide to the atmosphere will have any significant effect on climate change, especially not from a relatively small country like Australia. I have, however, had the benefit of listening to leading scientists and reading their work.