This is my previous correction

One reason for being concern in animal extinction is climate change. Climate change is an irregular difference in weather patterns found in a place, which could be usual the changing of temperature in a place for a month or season. In recent times, an increase in the temperature leads to warmer globe which affects animals in different ways. Global warming has affected Arctic ice which is melting at a faster speed than was anticipated even a few years ago.For example, many Arctic animals such as polar bears, walrus, and seals lose places to live. In addition, the raising of temperature also brings about the change of ecosystems. Some species in ecosystem are being ejected from their places or probably to be endangered because environment’s conditions were changed. As Stephen Henry Schneider points out, the increase in the global temperature of around 4 degrees Celsius by 2100 would result in major extinctions around the world