BOOK II
SPECIAL PART
TITLE I
CRIMES AGAINST PEACE AND HUMANITY
CHAPTER II
WAR CRIMES
Article 126. War crimes committed using prohibited methods of warfare
Any person who, within the context of an armed conflict of an international or noninternational nature :
i) Launches an attack while capable of knowing that such an attack will cause widespread, long-term and severe damage to the natural environment which would be clearly excessive in relation to the concrete and direct overall military advantage anticipated ;
Intentionally launching attacks that will cause environmental damage - IAC
EDIT.