Australia must urgently sign and ratify the United Nations Treaty on the Prohibition of Nuclear Weapons now that it has become international law, with the 50th nation - Honduras - officially ratifying the treaty at a ceremony over the weekend.

The Australian Greens have welcomed the news that the Treaty will officially come into effect on the 22nd January 2021.

"This is an historic day in the ongoing campaign for peace, and one that should be celebrated," Steele-John said.

Australian Greens Spokesperson for Peace and Nuclear Disarmament Senator Jordon Steele-John has called for an acknowledgment of the role Australian Government's have played in the nuclear chain and a commitment to ban nuclear weapons to mark the 75th Anniversary of the Trinity Nuclear Test.

Since 16 July, 1945, there have been 2,121 nuclear tests around the world. 21 of these tests have taken place on Australian soil.

Senator Steele-John said these tests had a devastating impact on people and planet, particularly First Nations Peoples and their country.