In 2017 the International Campaign to Abolish Nuclear Weapons started an international movement to develop a treaty on the prohibition of nuclear weapons. On January 22, the treaty was endorsed by 122 countries at the United Nations. Canada was not a signatory but there is a petition to Parliament to change that. Dr. Nancy Covington is with the Canadian affiliate of the International Physicians for Prevention of Nuclear War.
Sign the petition:
https://petitions.ourcommons.ca/en/Petition/Sign/e-3028