Jill Ellen Stein is an American physician, activist, and former political candidate. She was the Green Party's nominee for President of the United States in the 2012 and 2016 elections and the Green-Rainbow Party's candidate for governor of Massachusetts in 2002 and 2010.

During her campaigns for President, she campaigned on the theme of a Green New Deal which included a number of reforms to address climate change and income inequality, as well as civil and political rights reform. In 2012, Stein received 0.36 percent of the popular vote; in 2016, she received 1.07 percent of the popular vote.

In 2023, it was announced that Stein would help run Cornel West's Green Party campaign for president, challenging President Joe Biden.

Green, Green Party, Alternative Energy, Environment, Political, Sustainability, Environmental Activism Animals & Wildlife, Earth Day, Conservation, Science, Climate Change,