Introduction
Global Warming, aside from pollution is one of the biggest scientist’s concerns. Global Warming is the term used to describe increase in the temperature of the Earth. It is the process which is continuously warming the earth. The Earth's surface temperature has risen by about one degree Fahrenheit in the past century, with accelerated warming during the past three decades (Bond, 1995). There is stronger evidence and proof that most of the warming over the last fifty years is attributable to activities of human. Human activities have changed the chemical composition of the atmosphere and environment through the buildup of greenhouse gases, which are main cause of Global Warming.
There are four steps in the Greenhouse effect, which are, Ultraviolet rays from the sun, through space, to earth’s atmosphere (Jutro, 1991). The sunlight enters the atmosphere and hits Earth. Some of sunlight turns into heat energy in the form of infrared light. The heat gets impregnated by enclosing air and land, which in turn makes it hot. Infrared rays that are remitted into the atmosphere are captured by greenhouse gases. The gas then absorbs the light and is sent back to the surface of Earth and warms it even more.
Basically global warming is the ascent of the earth’s surface temperature due to chemicals in the atmosphere. The threats that global warming brings along with it includes: affecting the climate of the Earth and even the health of the people. This also includes altering of crop seasons. Global warming also affects the way organisms survive on the planet.
Signs and Effects
A large amount of the United States is probable to warm, even though sulfates possibly will limit warming in a few areas. Scientists at present are not capable to decide which pieces of the United States will turn......
