Climate Change Is The Planet's Most Severe Threat

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In his speech at the 2016 Oscars, Leonardo DiCaprio declared that climate change is the planet’s most severe threat and encouraged his audience to “work collectively together and stop procrastinating” about the issue (Mooney). That seems ironic coming from the guy who played Jack, a character that drowned because of a giant iceberg, but I guess Leo understands the titanic effect climate change is having on the world. So what exactly is climate change? Climate change consists of variations in the average weather patterns of a region. This is mainly caused by a layer of greenhouse gases, like carbon dioxide, that blanket the atmosphere, trapping heat on earth’s surface. NASA reported that global temperatures have risen 1.4 degrees Fahrenheit…show more content…
Warming temperatures at the poles have led to a massive decrease in the amount of ice available for tundra animal populations to dwell. In fact, the U.S. Geological Survey has predicted that two-thirds of polar bear sub-populations will be annihilated by 2050 (The Consequences of Global Warming on Wildlife). Not only will we lose opportunities to see polar bears’ adorably fluffy faces, but the decrease in polar bear populations will derail the entire tundra food chain. With fewer predators, seal populations will soar, but these seals will soon over-consume their food sources, gulping down the populations of species below them on the food chain. This will lead to an enormous crash in the seal population due to over-competition for food. Birds are also affected by the changing temperatures. Migratory birds like geese and falcons take clues from the environment to know when to migrate. With unseasonably warm or cool temperatures, though, birds may be signaled to migrate too early or too late and may arrive at their destination before or after their food source, leaving them to either find something new to eat or starve. Moreover, birds who miss the memo and arrive late to breeding locations will have to battle it out over the remaining breeding grounds and mates, leaving more birds to be lonely single Pringles. Amy Biagini, an avid bird watcher, disclosed that after the death of her daughter, she suffered with depression and could not find a reason to live; that is, until
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