U.S. courts have often relied on the political question doctrine
to dismiss climate change actions. The Canadian equivalent of the
political question doctrine, justiciability, has recently been
considered by Canadian Court in cases involving
Charter-based climate change claims.
To be justiciable, claims must be within the authority and
ability of the judiciary to decide, considering the Canadian
constitutional system of government. It is generally recognized
that it is not the function of the courts to establish what policy
or law best advances the public interest and that courts may
decline to decide such issues under the doctrine of
justiciability.
In three recent decisions, the Federal Court and the Ontario
Superior Court of Justice adopted similar approaches to determining
whether courts could properly decide Charter-based climate
change claims, but with conflicting results. This is not the first
time Canadian courts have considered justiciability with