SCHEDULE
[Section 2]
PART III
WAR CRIME
"War crime" means -
(b)
(xviii) intentionally launching an attack in the knowledge that such attack will cause incidental loss of life or injury to civilians or damage to civilian objects or 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
Intentionally launching attacks that will cause incidental damage to civilian objects - IAC
Intentionally launching attacks that will cause incidental loss of life or injury to civilians - IAC
Mental element
Intent - national proceedings
Intent - ICC proceedings
Knowledge - national proceedings
Knowledge - ICC proceedings
EDIT.