Global Warming

Global Warming

The term global warming was probably first used in its modern sense on 8 August 1975 in a science paper by Wally Broecker in the journal Science called "Are we on the brink of a pronounced global warming?" Broecker's choice of words was new and represented a significant recognition that the climate was warming, previously the phrasing used by scientists was "inadvertent climate modification," because while it was recognized humans could change the climate, no one was sure which direction it was going.The National Academy of Sciences first used global warming in a 1979 paper called the Charney Report, which said "if carbon dioxide continues to increase, we find no reason to doubt that climate changes will result and no reason to believe that these changes will be negligible."The report made a distinction between referring to surface temperature changes as global warming, while referring to other changes caused by increased CO₂ as climate change.

Global warming became more widely popular after 1988 when NASA climate scientist James Hansen used the term in a testimony to Congress.He said "global warming has reached a level such that we can ascribe with a high degree of confidence a cause and effect relationship between the greenhouse effect and the observed warming." His testimony was widely reported and afterward global warming was commonly used by the press and in public discourse

Global warming is the rise in the average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth's mean surface temperature has increased by about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980.

Global Warming is caused by many things. The causes are split up into two groups, human or anthropogenic causes, and natural causes. The causes of global warming by nature are explosions on the sun ("sun spots"), volcanic eruptions on a massive scale, changes in earth orbit, changes in earth's orientation toward the sun, explosions caused by large meteors hitting the earth 

In other side, the cause of global warming by human  causes are pollution, whether it is vehicular, electrical or industrial is the main contributor to the global warming. And then deforestation, it is the cutting down of trees and plants to make way for any development activity. Next landfills, landfills are those big chunks of garbage that you must have seen on some expressway, when you go out of your city, that stink. Last is population of human, because the increase in population makes the problem worse because we breathe out carbon dioxide.

            Global warming can cause many effect that impact to human, like flood, it caused by human waste because human throw the garbage in the river. Next, unstable climate, scientists predict that during global warming, the northern regions of the Northern Hemisphere (Northern Hemisphere) will heat up more than other areas on Earth. As a result, mountains of ice will melt and the land will shrink. Then Sea level rise, when the atmosphere warms, the surface layer of the oceans will warm, so the volume will expand and raise sea levels.

            The way to reduce global warming are using energy more wisely. The simple action we can take to help reduce it are we take a part to reduce waste by choosing reusable product insetead of dispossible buying product with minimal packaging. Beside that case we must leave the heat and air conditioning or controlling the low temperatures all the times. Use compact fluorescent light at your house. Goto the short distance by walking or cycling for our healthy body. In the long distance drive your car efficiently. Choos the household appliencesin energy efficient models. Soon turn off the light if you leave a room and off TV and others audio sets when we are not using them also off the water tap, ifwe don’t use it. Do the good hobby like to plant a tree. A single tree will absorb approximately one ton of carbon dioxide during it’s life time. Share information about recycling and energy conservation with your friends and others to establish program and policies that good for the environment.