The film focuses on the Thin Green Line, a group of people and organizations who are involved in the fight against fossil fuel companies and climate change. The Thin Green Line represents a symbolic boundary that separates the fossil fuel industry from the rest of the world. This boundary is defended by a group of activists who are fighting to protect the environment and the rights of indigenous communities.

The documentary showcases the stories of several activists and their struggles against the fossil fuel industry. We meet Kayah George, a member of the Tsleil-Waututh Nation in British Columbia, Canada. She is at the forefront of the fight against the Kinder Morgan Pipeline, which would transport oil from the Alberta tar sands to the Pacific coast. Also featured is Robert F. Kennedy Jr., an environmental lawyer who has been fighting against the fossil fuel industry for decades.

The film also explores the impact of climate change on several communities around the world. We visit the Marshall Islands, a group of islands in the Pacific Ocean that are at risk of becoming uninhabitable due to rising sea levels. We hear from people in Bangladesh, who are forced to deal with the devastating effects of flooding caused by climate change.

Necessity also provides a historical context for the climate change issue. The film examines how western civilization has historically exploited the natural resources of the world, and how this has led to the current climate crisis. It argues that we need to shift our thinking away from an economy that values growth at the expense of the environment, and towards an economy that prioritizes sustainability and justice.

The documentary also explores the intersection between climate change and social justice issues. It highlights the disproportionate impact of climate change on marginalized communities, such as indigenous peoples and people of color. It stresses that the struggle against climate change is also a fight for social justice and human rights.

One of the strengths of the documentary is its use of powerful imagery and stunning visuals. The film features breathtaking shots of the natural world, as well as images of protests and demonstrations around the world. These images provide a stark contrast between the beauty of the planet and the destructive impact of the fossil fuel industry.

Overall, Necessity: Climate Justice & the Thin Green Line is a sobering and thought-provoking film that will leave a lasting impression on viewers. It presents a powerful call to action for people around the world to the fight against climate change and to stand up against the fossil fuel industry. The film is a reminder that the fate of the planet is in our hands, and that we have the power to make a difference.