An open-air cinema in Athens, Greece, with deck chairs facing the screen
An open-air cinema in Athens, Greece, with deck chairs facing the screen. Photo: Badseed, CC BY-SA 3.0, via Wikimedia Commons.

Environmental Documentaries Worth Watching

August 1, 2026 · Film & Events · Berkeley Earth Day editors

Environmental film has a long history of changing minds. A good documentary can do in ninety minutes what years of reports cannot: make a distant problem feel close. Here is a starter list, grouped by theme, plus tips for turning a screening into a community event.

Climate

  • An Inconvenient Truth (2006): Al Gore's lecture-turned-film brought climate science to a mass audience and won an Academy Award.
  • Chasing Ice (2012): photographer James Balog's time-lapse cameras record glaciers retreating at startling speed.
  • Before the Flood (2016): Leonardo DiCaprio travels the world talking to scientists and leaders about climate change.
  • 2040 (2019): a hopeful look at solutions that already exist, framed as a letter to the director's daughter.

Oceans and wildlife

  • Chasing Coral (2017): divers and scientists document mass coral bleaching.
  • My Octopus Teacher (2020): a filmmaker's year-long bond with an octopus in a South African kelp forest; winner of the Academy Award for documentary feature.
  • Our Planet (2019): a nature series that weaves conservation messages into stunning wildlife footage.

Food and farming

  • Food, Inc. (2008): an investigation into industrial food production in the United States.
  • Kiss the Ground (2020): makes the case for soil health and regenerative agriculture. Some scientists think its claims are optimistic, which makes it a good film for discussion.
  • Cowspiracy (2014) and Seaspiracy (2021): campaigning films on animal agriculture and fishing, popular with vegan audiences and criticised by some experts for overstating figures. Watch with a critical eye and compare with research summaries such as our plant-based food and climate article.

Consumption and activism

  • The True Cost (2015): the human and environmental price of fast fashion.
  • Short films from Wild & Scenic: the festival's mix of activism and adventure shorts is ideal for groups. See our guide to Wild & Scenic.

Host a film night

  1. Check the licence. Public screenings usually need public performance rights, even if entry is free. Many documentaries offer community screening licences.
  2. Pick a short and a feature. A five-minute short as an opener warms up the room.
  3. Add a speaker from a local group for a Q&A, and have a sign-up sheet ready.
  4. Make it accessible: turn on captions, choose a step-free venue and say so in your invitation. Our accessible events checklist covers the details.
  5. Feed people: vegan snacks, real cups, water refills.
  6. Raise funds: a donation jar, a raffle of local products or a games night all work. Check the rules first; California regulates nonprofit raffles.

A note on balance: documentaries are made to persuade. The best film nights encourage questions. Pair a campaigning film with a fact sheet or a speaker who can put its claims in context.