25th November 2025
Returning to a focus on planetary boundaries (see https://greentau.org/2025/10/22/counting-on-170/) one boundary that may not automatically spring to mind is that of ‘novel entities’. A novel entity is a substance created by humans from synthetic chemicals and/or natural chemicals that processed in wholly new ways to produce a new – ‘novel’ – entity. Or it is something created by us by modifying the genetics of living organisms or the like, again producing a completely new entity. (1)
Examples of novel entities includes:
- numerous synthetic fertilisers, insecticides and pesticides – whilst these may increase harvests they also pollute soil and water and kill off pollinators and other essential insects. DTD is one such infamous example.
- chloroflurocarbons – these were used in fridges and aerosols before being restricted, because they were damaging the ozone layer.
- PFAs which are petrol based chemicals that offer amazing properties in resisting heat, oil, water, grease et such that they have been widely used in creating non-stick cooking ware, waterproof clothing, stain resistant and fire retardant fabrics etc. However they also cause infertility and various cancers, and have such a long life (remaining active pollutants) such that they are termed ‘forever chemicals’.
- BPA (Bisphenol A) is widely used in hard plastics cups, baby bottles, toys, food boxes, etc and can linings. It too can damage fertility, disrupt hormones, and cause eye damage, skin reaction and respiratory irritation.
- Artificial food additives are used to enhance flavour, smell, texture or shelf-life of foods, with the word artificial indicating that these are synthetic rather than natural ingredients. Whilst they are regulated for safety, there is still evidence that they can harm health. For example, the consumption of artificial sweeteners is linked to both cancer and cardiovascular diseases, and nitrates and nitrites (found in products such as bacon) may also have links to these diseases.
- Genetically modified organisms includes such things as golden rice (a GM rice that produces Beta-carotene); Bt Crop Maize which is toxic to certain pests; and AquAdvangage salmon that grow at twice the rate of conventional salmon. Again there are concerns around links between GM food and cancer, allergic reactions etc but before they enter the food chain there are safety assessments to be passed. Another concern is that GMO will disrupt the DNA of their natural counterparts. And with F1 hybrid plants we already know that their seeds have a lower germination success rate.
- Plastics generally – much has been written about the problems with plastics, that they hang around in the environment for centuries, and that when they break down into micro and nano-particles they enter into every part of our bodies and into every part of the global environment. As yet we don’t know whether the impact on humans is neutral or harmful. We do know that plastic does maim and kill wildlife and damage ecosystems.
Novel entities are widespread in the world – The Chemical Abstracts Service maintains a database of chemical names which has identified 204 million new chemicals! (2) – yet what we don’t know is the extent to which they are damaging the world’s environment. It is therefore instructive to read this from a report by the American Chemical Society:-
“We submit that the safe operating space of the planetary boundary of novel entities is exceeded since annual production and releases are increasing at a pace that outstrips the global capacity for assessment and monitoring.” (3)
- https://www.stockholmresilience.org/research/planetary-boundaries.html
- https://planet-tracker.org/wp-content/uploads/2024/09/Novel-Entities.pdf
- https://pubs.acs.org/doi/10.1021/acs.est.1c04158
The Green Tau 