Themes
The narration is woven around the theme of anthropogenic environmental change. The three species it features are used to illustrate particular threats to the planet's wildlife. In the Arctic, rising temperatures are causing a greater area of sea ice to melt and threatening the polar bear with extinction as early as 2030. Global warming is also disrupting the planet's weather systems and making seasonal rainfall patterns less predictable. This poses a threat to creatures like elephants, which must travel greater distances to reach water. Rising ocean temperatures have started to kill the plankton on which humpback whales and most other sea life depend. The film ends with the message that "it's not too late to make a difference."
"Of all the planets in our universe, there is only one we know can support life. Just the right distance from its sun, with a perfect climate, it's been called the lucky planet. All life on Earth is built on chance and powered by the Sun, but the delicate balances of our world are faltering as the planet struggles to support our growing demands. This is the time to take stock of what we have, and what we stand to lose."
— Excerpt from opening narration
Read more about this topic: Earth (2007 Film)
Famous quotes containing the word themes:
“In economics, we borrowed from the Bourbons; in foreign policy, we drew on themes fashioned by the nomad warriors of the Eurasian steppes. In spiritual matters, we emulated the braying intolerance of our archenemies, the Shi’ite fundamentalists.”
—Barbara Ehrenreich (b. 1941)
“I suppose you think that persons who are as old as your father and myself are always thinking about very grave things, but I know that we are meditating the same old themes that we did when we were ten years old, only we go more gravely about it.”
—Henry David Thoreau (1817–1862)