Sea Life In Sylvia Earle's The World Is Blue

The World is Blue, by Sylvia Earle is about her experiences as a marine biologist and all the sea life she met on the way. All throughout the book she lets it be known the trouble humans have caused by overfishing, pollution, and acidification of the oceans. That currently many sea life, has either gone extinct or is in danger of becoming. The first couple of pages, inform the reader on how without the ocean, the earth would not be able to sustain any type of life. Earle also writes about her first ever memorable encounter with water and how she like many other people. Was naive to the tragedies happening to our deep blue seas. For example, excess carbon dioxide from human activities can cause climate change with leads to global warming. As well as the carbon dioxide being the major form of acidification to our ocean. In the first part, "Taking Wildlife 1- The Mammals", Earle goes over many marine life species that have gone extinct due to decades of humans hunting and killing them. The ones that haven't gone extinct have depleted in size. By 1900, all marine mammals worldwide had suffered serious declines. Seals, sea lions, walruses, manatees, dugongs, sea otters, and polar bears were targeted everywhere for food, fur, and other commodities. Human error …show more content…
Bits of plastic, toothbrushes, packing straps, shavers, lawn chairs, bottle caps, coolers, crates, bags, and much more. As well as plastic bags, which are lethal to sea turtles, whales, and whale sharks when the indigestible material is engulfed and jams their digestive system. A whale, washed ashore in California in 2007, died of “unknown causes” but had 181 kilograms (400 pounds) of plastic in its stomach. Lost and discarded fishing gear causes major problems by entangling and killing marine mammals, birds, fish, and other marine life, as well as by endangering boat propellers and