| Director | Louie Psihoyos |
|---|
The film deals with several examples of the overarching theme of the Anthropocene Extinction, in that the spread of Homo sapiens has caused the greatest mass extinction since the KT event 66 million years ago, including climate change and poaching, and the efforts of scientists, photographers, and volunteers to protect endangered species. The film implicates human overpopulation, globalization, and animal agriculture as leading causes of extinction.
The film deals with the illegal wildlife trade, including the filmmakers exposing a whale meat restaurant in the US (on the same day Louie Psihoyos was originally planning to collect his Academy Award for The Cove) and covert undercover investigations of the shark fin and Manta ray gill trade in Hong Kong and mainland China for traditional medicines. The film also documents successful efforts to include manta rays on the CITES Appendix II list of protected species, thus stopping the village of Lamakera on Solor in Indonesia from killing them to supply demand in China.
The film refers to the Baiji and the Hawaiʻi ʻōʻō as recent examples of extinction (although both of these species are still believed by some to be extant), and identifies the Amphibian extinction crisis, the overfishing of sharks for shark fin soup and as bycatch, among others, as current causes for concern. More specific examples include the imminent extinction of the Florida grasshopper sparrow and Rabb's fringe-limbed treefrog (the last individual of which, Toughie, and Joel Sartore photographs).
Anthropogenic climate change from greenhouse gas emissions is identified as a leading cause of extinction, as organisms cannot adapt to unprecedented changes in not only temperature but weather, ocean chemistry, and atmospheric composition. The film focuses on the amount of methane produced by livestock, particularly cattle, and trapped methane escaping from frozen reservoirs in the Arctic, the latter drawing parallels to the runaway greenhouse effect that may have caused the Permian mass extinction that wiped out 95% of species. Carbon dioxide and methane emissions from transportation, animals, and factories are made visible to the human eye for the first time with a specially designed high-definition FLIR (forward-looking infrared) camera, with a special color filter. Ocean acidification and the subsequent degradation of corals and other calcium carbonate-based marine organisms are revealed with lab experiments and comparisons of archived photographs to the state of the same reefs in the 2010s. The degradation of marine ecosystems and the implications of coastal habitation are highlighted.
The filmmakers also work with Obscura Digital to design a custom Tesla Model S fitted with a 15,000-lumen projector system to project images of critically endangered and extinct species onto public buildings including Shell factories, Wall Street, Headquarters of the United Nations, the Empire State Building and the Vatican. They go visit the village of Lamakera, Indonesia to convince the village to stop fishing manta rays. As well as the greenhouse gas camera previously mentioned and the projector, it is also the first car in the world with electro-luminescent paint, inspired by bioluminescent organisms, and projects endangered animal sounds from the Bioacoustics Research Program. This campaign aimed to raise awareness and encourage people to change habits to ensure the survival of species for future generations, further highlighted by the 'Start With One Thing' Campaign.