Only ‘ecocide’ will help stop the international crime of our time

The last time a new international criminal offence was introduced was after World War II.

As floods, wildfires, record-high temperatures, and zoonotic disease make the climate and ecological crisis impossible to ignore, the world may be moving closer to agreeing that serious damage to our natural environment is more than just a matter for goodwill agreements. It may amount to an international crime.

The last time a new international criminal offence was introduced was after World War II. The Nuremberg and Tokyo Charters added crimes against humanity to the existing war crimes and crimes against peace (‘aggression’), enshrining the idea that certain acts are so egregious that, whoever the immediate victim may be, they concern us all. Soon after, in 1948, a particular crime against humanity — genocide — was incorporated in a new treaty.

We may be witnessing an equivalent moment in our relationship to the environment. Last month, a diverse independent panel of international lawyers issued the draft text defining the crime of “ecocide”, to be proposed for inclusion in the Statute of the International Criminal Court (ICC). The parallels are clear: adopting ecocide as an international crime acknowledges that severe damage to our environment is a crime against all of us, and that we can no longer leave it to regulation by individual states.

The panel, convened by the Stop Ecocide Foundation (on which we served), defined the crime as follows: unlawful or wanton acts committed with knowledge that there is a substantial likelihood of severe and either widespread or long-term damage to the environment being caused by those acts.

Two thresholds must be met for acts to constitute the crime. First, there must be a substantial likelihood that they will cause severe and either widespread or long-term damage to the environment. Severity is necessary in all circumstances, and the likely damage must be either widespread (extending beyond a limited area, crossing state boundaries, or affecting an entire ecosystem or large number of people), or long-term (irreversible or irremediable through natural recovery within a reasonable period of time). This would cover situations such as the toxic pollution of a population centre — a large number of people, but a relatively limited geographical area — or the destruction of a marine ecosystem, which might be limited in size but permanently lost.

To meet the second threshold, the damage must be either “unlawful or wanton”. Ideally, the environment would be adequately protected by national laws, and extreme violations would be international crimes. “Unlawful” deals with those situations. But national legislation varies, and international environmental law contains few outright prohibitions. And some legally permitted acts that harm the environment are socially desirable: consider desperately needed housing, transport, or infrastructure projects. In such cases, international environmental law sets out principles — above all the principle of sustainable development — according to which states should behave. The term “wanton” in the ecocide definition serves an equivalent purpose, addressing legally permitted acts that are reckless, owing to the disproportionate level of likely harm.

To be recognised as an international crime alongside genocide, crimes against humanity, war crimes, and aggression, the crime of ecocide will need the support of at least two-thirds of ICC member states (currently 123 states in total). It will then become effective for any state that ratifies it. Individuals in positions of responsibility whose actions meet the definition will be subject to prosecution at the ICC, or by any national courts with jurisdiction, and sentenced to prison if convicted. This is a major shift from the status quo, where criminal sanctions are lacking, at the international level and often at national level too, for many of the worst cases of mass environmental destruction. In most jurisdictions, individuals or corporations only face financial penalties.