Environmental Crimes

Some scientists are reportedly advocating adding 'environmental crimes' as a fifth heading of precluded acts of war under the Geneva convention (https://www.theguardian.com/law/2019/jul/24/make-environmental-damage-a-war-say-scientists-geneva-convention). Rather predictably, their focus is the damage inflicted by warring factions on wild animals and conservation areas. These are very real issues and would include killing elephants to fund particular groups of combatants or the use of Agent Orange to defoliate trees in the Vietnam war. Having said that, it does appear difficult specify what should be included as an environmental crime. Some people would argue that adding to the generation of greenhouse gases by encouraging space tourism for the rich might well constitute behaviour that deserves the label. What about the extraction of hydrocarbons, over-fishing or destruction of the Amazon rainforest?