Concrete and Clay

It seems that the Anthropocene (the geological age of the human) has really taken off! A study suggests that the weight of our species' production of asphalt, bricks, concrete, metal and plastics, is greater than the total biomass of living organisms on the planet (https://www.theguardian.com/environment/2020/dec/09/human-made-materials-now-outweigh-earths-entire-biomass-study). For example, the study points out that our production of plastic exceeds the mass of all land animals and marine 'creatures' (I am not sure what counts as a creature). The study makes a serious point about the impact of human activity on the Earth's living systems. It is, however, a bit vague in places. It is unclear, for example, whether bacteria and fungi have been included in the calculation of total biomass. They may be tiny but there are a lot of them. Some are also likely to survive irrespective of what humans do to the planet.