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.

Mythbusters Moon Landing photo hoax 1

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

Debunking "Multiple light sources" myth.

Channel: Education
Uploaded: November 30, 1999 at 12:00 am
Author: Dolfan0925

Length: 04:16
Rating: 4.64
Views: 75443

Tags: conspiracy  hoax  landing  moon  mythbusters  

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Video Comments

HollowZangetsu409 (November 30, 1999 at 12:00 am)
Hey, how about we all make live easy on ourselves and bust out a telescope and actually LOOK at the landing sites instead of just debating about it on the YouTube comments section?
goalposthead79 (November 30, 1999 at 12:00 am)
they say ignorance is bliss, so life must be a breeze for you
Siwena (November 30, 1999 at 12:00 am)
life must be hard for you
goalposthead79 (November 30, 1999 at 12:00 am)
single light source????!!!!! they still have all the other lights in the studio turned on, what the fuck????!!!!
241Groundhog (November 30, 1999 at 12:00 am)
Keep in mind they replicated all of this in lab (i.e. you can fake realistic images like these, and proportional distances were not used (i.e. the closer you have a light source ("The Sun"), the easier it is to bend shadows in different directions and/or in closer proximity)).P.S. I want to go to space, and really don't think the moon landing was/is faked.
Aurinkohirvi (November 30, 1999 at 12:00 am)
Everyone keeps saying "the Russians would have exposed the hoax!". But what could they have revealed, that would have exposed it? That Saturn V didn't have the performance NASA claimed, and so they shot an unmanned probe? Or that radiation would have killed the astronaut, we have the numbers? Well, we today know there were several major solar flares that would have killed them, but people still don't believe it! They saw it in TV! It had to be true! Why waste so much money?
NJRocks281 (November 30, 1999 at 12:00 am)
they actually are parallel even in the original. The shadow that is further back is just partially out of sight making it look straight with the horizon.
Aurinkohirvi (November 30, 1999 at 12:00 am)
Ho, come now! Many people have studied the Apollo program for decades reading massive amount of documents and studying the footages with computers, and the evidence is slowly piling up. What rock hard clear evidence do you suggest the Soviets had back then they could have revealed and expose the fakery? Do people now believe it was a fakery, when we know that there were several major solar flares during the missions that should have fried the astronauts? No, they want even harder evidence.
hks9900 (November 30, 1999 at 12:00 am)
"If the Soviets would have said that Apollo was a fake, who would have believed them?" If there was evidence of a hoax, why wouldn't people listen?"I don't think they had any such good proof they had needed."So what you're saying is that there is no hoax evidence. Good job derailing your entire argument. If the Soviets didn't have absolute proof that it was real, or even the slightest inkling that it could be a hoax, of course they would have come down HARD on NASA. Where is your brain?
treetheoak (November 30, 1999 at 12:00 am)
wtf? science was advancing astronomacly within the last 10 years! they would have never thought that we would have highways, urban and suburban areas, or even calculators! Nasa was responsable for the start of a huge leap in science and technology at the time including pocket calculators and the first office computer. they knew it, they were responsable for most of it along with the military!
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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