Since the turn of the 20th century, there have been several significant environmental events in the United States. Some of them include natural disasters like hurricanes and floods. Many experts agree that the upward trend of their frequency is closely tied to the continued abuse of our natural environment. In response to the decline of the environment, there have also been significant events and demonstrations made by individuals and groups in an effort to raise environmental awareness. In recent years, the United States has endured several hurricanes, including hurricane Katrina, which claimed nearly 2,000 lives, and caused an estimated $81.2 billion worth of damage. Occurrences of heat waves are also becoming far more common, with record breaking temperatures being set every year. In Alaska, research has concluded that many of the great glaciers are shrinking at an alarming rate, as temperatures rise and warm seasons become longer. As the glaciers melt, the sea level is gradually rising. There is much concern that if this continues, it will eventually lead to floods and make the environment even more unstable. Many Americans have already responded to the imminent threats associated with these recent environmental events. “Go green” and similar awareness campaigns are growing in popularity as more people are educated about the current state of our environment. Originally recognized in the United States in 1970, Earth Day is now recognized by several countries worldwide as a day to evaluate our personal impact on the environment and what we can do as groups and as individuals to protect it, and also to minimize further damage.