Emerald Robinson: Hi! I'm Emerald Robinson, and in this what is video we're going to discuss Global Warming.
Global Warming is defined as a consistent rise in the earth's average temperature. Global Warming is not the same thing as an in fact contributes to climate change, the change that occurs in the earth's average weather over an extended period of time.
Since the last ice age earth's average temperature has been increasing very slowly, over the last several thousand years it's only risen by about 2 degree Fahrenheit. But that's change over the last century or so.
During the industrial revolution of the early 1800, human started to burn large amounts of fossil fuels like coal and oil to power factories and mills. Ever since we've used enormous amount of fossil fuels to do things like make electricity and provide energy for transportation.
Combustion or burning of these fossil fuels releases Carbon di Oxide in to the earth's atmosphere. Our fossil fuels use has increased the percentage of Carbon dioxide in earth's atmosphere and not that it functions as a green house gas.
Green house gases act like glass in a green house by trapping heat below the atmosphere. And just one hundred years the average global temperature has risen by about 1.
3 degrees Fahrenheit.
This warming has drastically affected the earth, glaciers and large areas of see ice have begun to melt, raising ocean temperature have called some sea life to search for cooler waters, and has decreased the population of others.
Scientists also note an increase in the number and intensity of hurricanes and tornadoes.
Over the next 100 years scientists predict that earth's temperature will rise as much as another five degrees Fahrenheit, unless we do something about the human contribution to Global Warming.
Groups that study and try to protect our environment are working with scientists to find solutions for this growing problem.