Cause of global warming

The phenomena. Historically, all of the Earth's climate changes were attributed to natural forces such as volcanic eruptions, Earth's orbital changes, and the amount of released solar energy. That changed with the introduction of the Industrial Revolution late in the 18th century, when human activities began to alter the global climate and environment.

The Industrial Revolution

The onset of the industrial revolution has paved way for the advancement of human technology. As more people relied on technology, numerous tools and devices were invented to make life easier for men. However, the emergence of these inventions has also resulted in the dependence of man to energy. The influx of energy usage from fossil fuels, coal, oil or gas has also resulted in the inception of human-induced rapid climate change. The demand for energy around the world is currently at more than 80% of the world-wide energy demand. Most of this is from fossil fuels such as gas, oil, and coal. Since the energy demand is too high, there hasn't any other alternative source yet with this magnitude which could replace fossil fuels in the short or medium term. Thus the drastic increase in the emission of CO2 (carbon dioxide) within the last 30 years caused by burning fossil fuels has been identified as the major reason for the change of temperature in the atmosphere.

Greenhouse gases and global warming

Greenhouse gases regulate our climate by trapping heat and holding it in a kind of warm-air blanket that surrounds the planet. They are necessary for keeping the Earth's temperature warm enough to support life. This occurrence is scientifically called the "greenhouse effect." The problems related to global warming which we have encountered for decades started when human activities added more greenhouse gases into the atmosphere which disrupt and speeds up the natural process thereby warming the planet to more than the right temperature. Scientists revealed that as the concentrations of these gases continue to increase in the atmosphere, the Earth's temperature will also continue to climb above past levels eventually making the Earth become less habitable for humans, plants and animals. Burning fossil fuels by driving cars, using electricity from coal-fired power plants, or heating our homes with oil or natural gas are just some of the human activities that emit this carbon dioxide into the atmosphere in overwhelming proportion.

Global warming and its consequences

For decades, the rapid pace at which the temperature has risen had already resulted in many negative impacts to humans and the environment and this has created a world-wide concern. Most scientists believe that the warming of the climate will lead to more extreme weather patterns which may accelerate species extinction, influence the length of seasons, results in poor yield of crops, trigger flooding in costal lines, sets off abrupt climate changes and results to more frequent and violent storms.

Brian Williams: McCain Campaign Spread 'B' Hoax To Reporters

Causes and Effects of Global Warming
Causes and Effects of Global Warming Causes and Effects of Global Warming
Causes and Effects of Global Warming

Aired 8/24/08

Channel: News & Politics
Uploaded: November 30, 1999 at 12:00 am
Author: DailyKosTV

Length: 00:40
Rating: 4.88
Views: 87675

Tags: Ashley  Brian  Hoax  McCain  Todd  Williams  

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Video Comments

finally0726 (November 30, 1999 at 12:00 am)
saveecat, nice suggestion. Those are the Chicago Bulls color! Let's remember Michael Jordan. I wish I would have had that idea.
Marbles471 (November 30, 1999 at 12:00 am)
Yeah---I can't find it in myself to summon rage at her. Anyone who would do something this mind-bogglingly stupid is obviously not quite right in the head. She needs to get some help.
Wewillgetitdone (November 30, 1999 at 12:00 am)
Yes, it should have been obvious when they saw that the B was a mirror image and obviously made by a fool looking in a mirror! These McCain people are insane! And of course McCain and Palin were all over it! If they don't lose this election, it says something terrible about the American people.
taodepaul311 (November 30, 1999 at 12:00 am)
"...when the revolution begins."Besides the fact that this great country was born in a revolution, I emphatically hope that belligerent partisans such as yourself will put COUNTRY FIRST and allow a President Obama to prove himself to you. If he fails, fine, but at least give him a chance."WE MUST NOT BE ENEMIES, BUT FRIENDS. THOUGH PASSION MAY HAVE STRAINED, IT MUST NOT BREAK THE BONDS OF OUR AFFECTION."-President Abraham Lincoln
ShukyoWaBaka (November 30, 1999 at 12:00 am)
Be sure to vote Nov. 4th Tuesday!
allofyouarestupid (November 30, 1999 at 12:00 am)
i know where you're coming from, as a black man you would like to see a total black ticket for president but i think Obama knew that his chances of getting elected would be really hard with a black vice president. not saying its right, just the way things are.
JCMarra (November 30, 1999 at 12:00 am)
Yeah, but not a fatal one. We don't need a martyr for the wingnuts.
saveecat (November 30, 1999 at 12:00 am)
Instead of red, white and blue -will itbe red, white and black?.
Ssider (November 30, 1999 at 12:00 am)
I would like to know whether or not this young woman was manipulated into doing this. I am not suggesting that this hoax is a high level deception, but perhaps a mid to low level management attempt. I almost feel sorry for this girl. She lost her job (I read she was a paid staffer, not a volunteer) and is now a pariah among both dems and repubs.
juglord (November 30, 1999 at 12:00 am)
i want to brand sarah palin with MY SPERM
Effects of global warming

Climate Change. Scientific researches have already revealed that the effects of global warming in the 21st century and beyond are expected to be disastrous. Many of these changes are already under way. Recent studies conducted by Working Group II of the United Nations' Intergovernmental Panel on Climate Change (IPCC), states that the increased greenhouse gas concentrations are very likely to increase the Earth's average temperature, influence precipitation, and some storm patterns as well as raise sea levels. In addition to this, the United States National Academy of Sciences has warned that "greenhouse" warming and other human alterations of the earth system may increase the possibility of large, abrupt, and unwelcome regional or global climatic events.

Projected Impacts of Global Warming

A board organized by the U.S National Research Council in June 2006 expressed a "high level of confidence" that Earth as we know it today has experienced the hottest climate for the last 400 years, and possibly even the last 2,000 years. Studies have shown that, for the last century, there has been an increase in the average global surface temperature of roughly 0.3-0.6 degree Celsius (0.5-1 degree Fahrenheit). This global warming will potentially lead to future large-scale and possibly permanent effects at continental as well as global scales. The likelihood, magnitude, and timing is uncertain and contentious but some examples of projected impacts that will occur are more frequent and more intense heat waves, droughts, severe storms, more floods, degraded water quality, and increased spread of infectious diseases. If for the past 100 years such overwhelming effects were observed while the globe warmed up by an estimated average of merely 0.6 degree Celsius (1 degree Fahrenheit), this phenomenon will likely get worse by the year 2100. By that time, temperatures could increase by 6 degree Celsius (11 degree Fahrenheit).

Global Warming and the Society

The effects of global warming will be felt in every region worldwide and at all levels of society. Reports from the United Nations' Intergovernmental Panel on Climate Change (IPCC) confirmed with 90 percent certainty that global warming is now inevitable and humans are primarily accountable for a significant portion of the heat-trapping greenhouse gases that have caused global temperatures to rise significantly since the middle of the 20th century. It also made clear that while poor people worldwide will suffer most from the effects of global warming, no person on Earth will escape its consequences.

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