In the mid-1990s, a number of environmental and social justice activists began to organize against the perceived rightward drift of the governing New Democrats (NDP) under Premier Roy Romanow, who were seen to have embraced Third Way politics.

[3] In April 1998, organizers held a news conference, stating their intention "... to create a political party committed to protect the environment from corporate plunder and to advance a social justice agenda," before officially registering the New Green Alliance (NGA) with Elections Saskatchewan in January 1999.

[6] The NGA, whose platform was characterized as "counter-ideological" in contrast to the NDP and Saskatchewan Party, who were competing to form government, found it difficult to garner media attention during the campaign.

[7] In the 2003 election, under the leadership of Ben Webster, the party ran 27 candidates but actually lost support compared to 1999, earning only 0.6% of the vote province-wide.

On 6 September, 2011—the unofficial kickoff for the 2011 provincial election campaign—Green leader Larissa Shasko resigned her position to join the campaign of Regina South NDP candidate Yens Pedersen.