OK, did some research, and found a couple interesting quotes:
Stoning is a grave and serious violation of International Human Rights Law. Stoning breeches the International Convention of Civil and Political Rights (1966), to which Iran, Afghanistan, Iraq, Nigeria, and the Sudan are party signatories. Article 6 of the ICCPR states that in countries which have not abolished the death penalty, sentence of death may be imposed only for the most serious crimes, of which adultery is not one. Article 7 of the ICCPR states that "No one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment." This last injunction is the content of a whole Convention: the Convention Against Torture and Other Cruel, Inhuman, or Degrading Treatment or Punishment (1987), which is widely considered to have reached the level of customary law due to its strong international acceptance by more than fifty nations, including many Muslim nations.
and:
Shouldnt we just accept stoning as part of someones culture and their right to freedom of belief?
There is no excuse for the killing of women in the name of any religion, culture or tradition. Religion and culture cannot and must not be invoked as excuse for the killing of women, because religion and the laws which derive from it are always subjective interpretations. Culture is not static, but constantly re-created and re-defined by the various interests of groups in positions of power in a society at any given time. There is no excuse for the killing of women. Murder is a brutal violation of the most basic human right the right to life and any practice which harms women or impinges upon their agency and autonomy contradicts fundamental rights, such as the right to security; the right to freedom from violence; from inhuman, degrading treatment and punishment; from terror; the right to choose a marriage partner; and the right to not face discrimination under the law. As long as impunity exists, the misappropriation of culture and religion will continue to threaten womens safety. No culture has the right to kill and harm women based on their perceptions of morality or honour. The freedom of belief does not mean freedom to kill. Stoning is a brutal example of how culture and religion are being misused to perpetuate violence against women.
So, I am leaning towards it being a gloabl issue rather than a country's issue. I haven't heard of Canada being involved (my country) but I wouldn't be opposed to Canada being involved.