Global warming is the name given to a phenomenon that has led to an average rise in the
Earth's temperature and ocean surface. Over the past 100 years, the Earth has become
abnormally warmer by about 0.74 degrees Celsius, which has worried scientists. Some
scholars believe that the last decades of the twentieth century were the warmest years of the
last 400 years. Reports indicate that 10 of the warmest years in the world were recorded
from 1990 to 2007 alone, the highest level in 150 years. Industrial activities seem to be very …

Scientists are concerned that the Earth has warmed unnaturally by 0.74 degrees Celsius
during the last century. A number of academics feel that the last few decades of the 20th
century were among the hottest in the last 400 years. Reports indicate that from 1990 to
2007, 10 of the world's warmest years were recorded, the greatest level in the last 150 years.
This problem appears to be a direct result of industrial activity, which has made a significant
impact to global warming. There has been a rise in the Earth's temperature and ocean …