About Mark Retired geologist and earth scientist, specialising in ore deposits and isotope geochemistry. Before retirement, I led the Australian government's pre-competitive geoscience programs for minerals and energy.
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Mark's Articles This is a list of the latest articles and blog entries that Mark has written. How Microbes Can Mine Rocks In Space (And How It Could Save Earth)Early Earth's Oxygen Buildup May Be Due To Longer DaysFrom Diapers To Sticky Notes - A Revolution In RecyclingHow To Fix Our Nitrogen EmergencyCorrelation Between Underground Carbon Stores And Above-Ground Plant Biomass Click here to read all of Mark's articles.
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