In the absence of international statutes prohibiting nations from causing each other environmental damage, scholars of international environmental law typically focus on trying to identify and clarify norms of "customary international law": that body of commonly acceptedβbut not formalizedβlegal principles that is manifest in the behavior of nations toward one another. βββ
ββ ββββββββ βββββββ β βββββ βββββββββ ββββββ ββ ββββββββββ ββ β ββββ ββ βββββββββ βββββββββββββ βββ βββ βββ ββββββββ ββ ββββββββ βββββββββββββ ββββββ ββββββββ ββ βββββββββββββ βββββββββββββ βββ βββββββββ ββββββ ββ βββββββββββ ββββββββββ ββββββββββ βββ βββββ ββββ ββ βββββββ βββββββββββ βββββ ββ βββ ββββββββββ ββ ββββββ ββββββββ ββββββ ββββ ββββββ βββββββββ ββββ ββ βββββββββ ββββββββββ βββ
ββββ ββββββ βββββββ ββββ ββββββ βββββ ββ βββββ βββββββββββββ ββββββββ ββββ ββββββββββββ βββββββββ βββββββ ββ ββββββ βββββ ββββββββββ βββββ ββββββββ ββββββββββ βββββββββ βββββββββββββ βββ βββββ ββ βββββ ββ ββββ βββββββ βββ βββββ βββββββ βββ ββββββ ββββββββββ βββββ ββ ββββ βββββββ ββββββββ ββ ββββββββ βββββββββββββ βββββββββββββ βββββββ βββββββββ βββββββ βββ ββββββββββ βββββββββ ββββ βββββββ βββ ββ βββββββ βββββ βββ βββββββ βββ βββββββββ βββββ ββ βββββ ββββββββ βββ
ββ βββββ ββ ββββ βββββ βββββ ββββββββ βββ ββββ ββ βββββββββ βββββββββββββ βββ β ββββ βββββββββ βββ βββββββββ ββ βββββββββββββ βββββββββββββ βββββ βββ ββββββββββββ βββββ ββββββββ ββββ ββ ββββββββββ ββββ βββββ ββββ βββββββββββββ ββββββββ βββ ββββββ βββββββββββββ ββββββ ββββ βββββββββββββ βββββ ββββββββββ βββ βββ βββ βββββββββ βββββ ββ βββββββββ βββββββββββββ βββββββββββββ βββββββββ βββ
Which one of the following ββββββββββ ββ ββββ ββββββββ βββββββββ ββ βββββββββββ ββ βββ ββββββββ
Because of their βββββββββββββ βββββββββββββ ββββ ββββββββββ ββ βββββββββ ββββ βββββββββββββ ββββββ βββ ββββ ββββββββ ββ ββββ ββββββββ βββββββββ ββββββββββ βββββββββββββ ββββββββββ
The precautionary principle ββ βββ βββββββββ ββββ β ββββββββββββ ββββββββββββ ββ βββββββ ββββββββββ βββββ βββ βββββββββββββ
Nations are rarely ββββ βββββββ βββββββββββ βββ ββββββββββ ββ ββββββββββ ββββ βββ ββββββββ ββββββββββ ββ ββββββββ ββ ββ βββββ ββ βββββββββ βββββββββββββ βββββββββββββ ββββ
Most violations of βββββββββ βββββββββββββ βββββββββββββ βββ ββββββ ββββ βββββββββββββ βββββ ββββ βββββββββββ βββββββββ ββββ
Established norms of βββββββββ βββββββββββββ βββββββββββββ βββ ββββ βββββββββ βββββββ βββββββββββββ ββββββββ ββββββββββ βββ βββββββββ