2). He claims that these have all stayed within the normal expectations. According to a study by John A. Church, who is an expert on sea level and its changes, global sea level rose about 17 centimeters (6.7 inches) in the last century (2-3). Global sea level is measured by satellites and updated monthly. As global temperature increases, the oceans warm and seawater expands. Shrinking land ice, like glaciers and polar ice sheets, are releasing water into the ocean. These are the two major mechanisms causing sea level to rise and both are heavily to do with climate change. The acceleration of sea-level rise has been detected and serves as “an important confirmation of climate simulation” (Church 3) since these studies now show an acceleration that was not detected in previous observations. Not only is it important for mankind to be aware of these issues in the present, but also for the future generations to come. “The likely rate of sea level rise immediately after 2100 will be much larger than within the 21st century, especially if CO2 emissions continue to increase” (Hansen et al. 6) and we wouldn’t want to be responsible for that outcome. It is consequential for man to take
2). He claims that these have all stayed within the normal expectations. According to a study by John A. Church, who is an expert on sea level and its changes, global sea level rose about 17 centimeters (6.7 inches) in the last century (2-3). Global sea level is measured by satellites and updated monthly. As global temperature increases, the oceans warm and seawater expands. Shrinking land ice, like glaciers and polar ice sheets, are releasing water into the ocean. These are the two major mechanisms causing sea level to rise and both are heavily to do with climate change. The acceleration of sea-level rise has been detected and serves as “an important confirmation of climate simulation” (Church 3) since these studies now show an acceleration that was not detected in previous observations. Not only is it important for mankind to be aware of these issues in the present, but also for the future generations to come. “The likely rate of sea level rise immediately after 2100 will be much larger than within the 21st century, especially if CO2 emissions continue to increase” (Hansen et al. 6) and we wouldn’t want to be responsible for that outcome. It is consequential for man to take