Origins of the Climate (02:47)
Four million years ago, Earth's atmosphere was primarily composed of gases that prevented life. Eventually, such gases were released, freed into the atmosphere, which created climates. The spread of oxygen throughout the air created a birthplace for life— the oceans.
Nomads of the Sea (02:53)
A tribe known as the Bajau Laut took refuge on boats after a flood submerged their homes. The ocean is a source of sustenance for them, as they feed daily on fish. Clan members describe their spiritual beliefs.
Forgotten Spells (02:01)
The Bajau Laut people say that storms can be fatal, flooding the boats and killing people that cannot swim. When winds are strong, the tribe waits, unable to control the boats.
Weather and Time Meet (02:21)
At a weather station in Russia, a man studies meteorology. Data shows how much sunshine occurs in the polar region, and the scientist studies atmospheric pressure and rainfall.
Weather Report (02:59)
The ice region is measured to study the ice field, since the accumulation of ice depends on snow and its density. The white mantle of the ice reflects the sun's rays, protecting the Atlantic Ocean from warming. The scientist transmits data daily via a radio.
Dreams of Fish (02:51)
The Humboldt Current creates life in Peru, where people fish for giant squid and export their catches. Fishermen captain Victor Silva describes the experience of a flood on the boat. The Humboldt Current carries plankton which nourishes the fish and plays a role in regulating climate.
Spontaneous Explosion of Life (03:24)
Scientists and sailors aboard a ship in Greenland study the ocean's role in regulating climate. A plankton specialist takes a sample of the ocean, estimating the volume and the surface, collecting plankton and algae.
Allowing the Planet to Breathe (04:11)
Plankton can be plant and animal based, vital in the marine food chain. A member of the Bajau Laut clan dives down into the ocean where he remains for several minutes without coming up to breathe.
Watchmen of the Climate (02:22)
The ocean absorbs carbon dioxide and releases oxygen. The Bajau Laut keep close watch on the sea and the changing climate, permanently intertwined.
Spring Arrives Sooner (02:20)
The Russian scientist takes the third reading of the day during springtime. Global warming may cause flooding of the Netherlands and Russia.
Industrial Fishing Intentions (03:13)
The Peruvian fishermen know that giant squid are nearby. Silva says that the squid are going further south than usual, migration that is a symptom of climate change. The giant squid and the rest of the food chain follow plankton, while the climate change alters fishing maps.
Indicators of Change (03:16)
Fishing giant squid provides sustenance and financial security for families of fishermen. Squid can attack fishermen and draw them underwater. Ornithologists study the birds of south Greenland, data that provides information about the climate.
Disappearing Species (02:36)
Ornithologists count the nests of the Arctic tern. Increasing rain is wiping out colonies of birds that are not adapted to such conditions. Man will be most affected by climate change.
Disappearing Corals (03:16)
The Bajau Laut people use masks and buckets to collect shellfish and giant clams. Coral forms forests underwater which shelter life and regulate the climate by pumping carbon dioxide from the air.
Sea Spirits (02:53)
Bajau Laut people always sleep on their boats. They speak of lizard-like spirits that warn them of trouble. The Russian scientist measures the temperature of the Arctic Ocean.
Plastic in the Food Chain (02:43)
Scientists on the Tara expedition boat know that the plankton's response to climate changes can be fatal. All of the oceans have been polluted with plastic in the 60 years that the substance has existed.
Diversity of Marine Wildlife (04:09)
Silva takes his wife and daughter on an expedition where they observe a colony of sea lions. They are competitors, but Silva does not approve of killing them off like other fishermen have done.
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