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Threat of global warming
Global warming and human activity
Controversy of global warming
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Global Warming, global concern? I think not. I personally believe that the theory of global warming caused by the infamous carbon dioxide is false. Please, let me explain. First of all, there are more potent, harmful, gases being emitted into the atmosphere. Secondly, the temperature change in the 20th and 21st centuries is extremely slight. Lastly, the earth is currently recovering from a period known as the Little Ice Age.
First of all, there are more potent gases being emitted into the atmosphere such as the well known greenhouse gas, methane. Methane is mostly associated with cows. Yes, I said it, cows. When cows fart, they release the greenhouse gas methane. Also, methane heats up the atmosphere more than carbon dioxide. So the point here is that global warming isn't mainly caused by humans.
Secondly, the temperature change in the 20th and 21st centuries is very slight. In fact it has stayed within a 3 degree Celsius range. In fact, if the change were to happen in a room, many people in the room would not notice. Right now, you probably aren't persuaded, but, in my next paragraph, I will definitely persuade you. Definitely.
Finally, the moment you have all been waiting for, the third paragraph! This is where I will persuade you to believe my ideas. Well, here it goes. My final idea is that the globe is now recovering from a time know as the little ice age. This in turn will make the earth seem warmer. In science class, we conducted an experiment conducting this. We put one hand in warm water and another in cold water. Then we put both hands in room temperature water. The hand that was in warm water felt cold and visa vera for the other.
Human activity plays a moderate effect on global warming. Although we are major source of releasing carbon dioxide through cellular respiration, I do not believe it causes an imbalance in our atmosphere. The way humans do affect that imbalance is when deforestation takes place, and start building industrial plants, cars, etc. Think about the amount of industrial building all over the world that needs fuel to run and not to mention all the machinery that is used every day to construct and run
First, during the last few decades the Earth is experiencing greater rate of rising temperatures due to greenhouse gases that are being produced by human activities rather than because of environmental reasons, such as solar or volcanic activities. In 2006 the President of the National Academy of Sciences stated: “There is no doubt that the Earth is warming,” also he added that people are at least partly responsible for these changes in addition to regular factors (Cicerone, par.4). Natural factors have produced climate fluctuations on Earth for several million years. People have effected an atmosphere of the Earth just for nearly one hundred years, since Industrial Revolution has begun (Revkin 340). Of course, it is unfair to say that global warming is caused entirely by humans. For example, people can not have an impact on the position of Earth in relation to the sun, or on the galactic density, or such nature events as air emissions of volcanic gases. As a result of these environmental factors, Earth usually had higher rates of temperature fluctuations during the previous million years than it has in later centuries. On the other hand, people are responsible for the highest concentration of greenhouse gases during the last 650,000 years in the atmosphere due to industrial manufacturing, driven by the increase in consumer consumption (Lindsey, par.
Global warming is a scientific, political, and controversial topic. Some believe it is catastrophic, a slow moving killer hiding in the shadows. Others do not even think twice about it as they race by in a Hummer. Global warming is the gradual increase of temperature throughout different climates. It is caused by the greenhouse gas effect in which greenhouse gases, like methane and carbon dioxide, reflect sunlight back and forth. This reflected ultraviolet light bounces between the earth and the ozone layer and becomes trapped, resulting in a gradual rise of temperature. Over time, the slow rise of temperature causes new climates throughout the globe. The article “What Megablazes Tell Us About the Fiery Future of Climate Change” by Tim Dickinson
Firstly, global warming is said to be caused by the high levels of carbon dioxide released into the atmosphere by humans. Smoke produced by factories, vehicular exhaust, and the burning of fossil fuels such as coal in power plants are the primary sources of carbon dioxide. The theory is that carbon dioxide being released into the Earth's atmosphere is steadily building up because it cannot escape into space. The theory as to why the carbon dioxide in the atmosphere actually causes the Earth's average temperature to rise is outlined as follows:
Most climate scientists agree that the main cause of global climate change is the human expansion of the greenhouse effect. This is the global warming that results when the atmosphere traps heat radiating from Earth toward space (climate.nasa.gov). The main gases that contribute to the greenhouse effect include water vapor, carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons (climate.nasa.gov). Human activities are changing the natural greenhouse effect. The burning of fossil fuels like coal and oil has increased the amount of carbon dioxide in the atmosphere (climate.nasa.gov). Carbon dioxide levels have increased from 280 parts per million to 379 parts per million in the last 150 years due to human act...
Beginning with Mark Hendrickson’s argument, he recognizes that the climate is changing. He wrote in his article “Climate Change-Hoax or Crime of the Century” that the Earth has emerged from a Little Ice Age not that long ago, and it would be worrisome if the climate around the globe was not warming up. The science and data that has been recorded supporting this argument does agree with this argument. He also stated that it is beneficial, since human thrive in warmer climate.
Our world is always changing, so is our climate. Some changes are apparent, others not so much. Climate change is an important issue of concern in the twenty-first century. Environment, if it changes at all, evolves so slowly that the difference cannot be seen in a human lifetime (Wearth, 2014). Mostly all scientists predicted that it would take thousands of years for the planet to warm up due to emissions of carbon dioxide from fossil fuels called greenhouse gases. But in the past 200 years, things began to change. The rate and the amount of warming that is happening on this planet are unprecedented. Wearth says, “People did not grasp the prodigious fact that both population and industrialization were exploding in a pattern of exponential
Humans have caused global warming by doing many things but the main three are burning of fossil fuels and green house gas emission, deforestation, and excessive use of chemical fertilizers. Global warming is like a bad dream going worse.
While critical of global warming alarmism, this documentary does not doubt that the earth is warming. Instead, they claim that scientific evidence demonstrates that such warming is but a natural variation in earth’s climatic history, similar to the Medieval Warm Period of the Little Ice Age. The documentary uses several lines of evidence to back up this claim, including ice core data that they claim when rightly interpreted shows carbon dioxide as having a lag time when earth’s climate has warmed in the recent and distant past, making it doubtful that it could be responsible for the increase in temperature that has been observed recently. The timing of the recent warming, which was most pronounced in the late Nineteenth Century through World War II, stopped and reversed to a cooling trend in the mid-Twentieth Century, and then rapidly warmed again in the past three decades, is dissected. Since this warming began before the advent of major human sources of greenhouse gas emissions and the period of most dramatic industrial...
The most destructive human contribution to climate change is fossil fuels combustion, which results in the release of carbon dioxide and other greenhouse gases into the atmosphere. Increased carbon dioxide, methane, nitrous oxide and halocarbons levels in the atmosphere cause an imbalance in the earth’s energy. This is because the gases alter solar radiation and thermal radiation which regulate the earth’s energy. Research indicates that anthropogenic climate change is the cause of the increased global warming over the last fifty years. 57 % of the carbon dioxide emitted is absorbed into the atmosphere while the rest is absorbed into the oceans. Carbon dioxide in the atmosphere is the most central greenhouse gas that is associated with global warming (Eby, Zickfield, Montenegro, Archer, Meissner, & Weaver,
Many climate scientists, researchers, and environmentalists are expressing concerns about shifts in the overall climate of the earth. It is believed that a dramatically dangerous warming is taking place in the overall global climate, a problem that is referred to as "global warming”. Global warming is the observed century-scale rise in the average temperature of Earth’s climate system. This temperature rise is due to the damaging effects of deforestation and the burning of fossil fuels. It is our responsibility to preserve our planet and our way of living but in order to do that we need to act now. If we continue to destroy the planet with no regard as to how serious this matter is there could be several negative effects to us as human being and other living thing on Earth. This is why global warming is truly a global issue and needs to be tackled collectively. We must to act now in order to reduce the dangerous levels of carbon dioxide emissions and we must to work together.
In relation to 1850, these past 30 years have resulted in a successive increase in the Earth’s surface temperature. This resulted in the Northern Hemisphere experiencing the warmest thirty year period of the last 1400 years.
The hottest recorded temperature was in 2005 which matched the temperature in 1998. Twice in the last decade we've had the hottest temperature on average ever recorded throughout history. Coincidence. I think not. The snows of the Kilimanjaro have basically vanished and in a couple decades Glacier National park is going to need a new name because by 2030 there will be no glaciers left in the whole park. The great Greenland icecaps are melting at an alarming pace, and sliding into the sea. Your right, who cares it's not like its happening near us. But by 2100 all our coastal states will look like Venice including ours. You won?t be alive but your children and grandchildren will. The sea level is expected to rise up to 23 inches in the next decade. There has been a 100 percent increase in intensity and duration of hurricanes and tropical storms since 1970 according to a 2005 MIT study. How much more evidence do we need before someone does something about this? For anyone who cares at all about the future, the gradual transformation of our earth is turning into a human-furnace that makes terrorism look like a game of monopoly. Think I'm kidding? By 2050, 15-37% of all plant and animal species could be extinct. Meaning it will be harder for plants to produce photosynthesis. No big right? Wrong. Without photosynthesis, oxygen can?t be made. Most of us in this room will be in our late 60?s by then with children and grandchildren. What does that mean for them? The air will be harder to breath and the temperature of earth will have increased by 2 degrees Fahrenheit. By 2050 up to 38% of water will be unable to hold underwater species because of rising temperature.
In conclusion, many facts point to global warming being detrimental to our world. With scientific predictions, rising temperatures, human causes, drastic climate changes and animal adaptations being some of the more thought about topics it`s hard not to agree that our world can not continue to be used as it is. Even with some scientists arguing against the topic, our Earth`s orbit changing the temperatures before and have been through hotter and cooler time periods the pros still outweigh the cons. This is why we, as a global population, need to take into consideration the outcome of our planet should we continue to abuse it the way we do. Our earth and resources are not a right but a privilege and we should learn to treat them as such before we no longer have either.
Scientists, economists, and policy makers all agree the world is facing a threat from climate warming. Climate warming is caused by excess greenhouse gases such as carbon dioxide, which are heat trapping gases. Human use of fossil fuels is a significant source of these gases. When we drive our cars, heat our homes with oil or natural gas, or use electricity from coal-fired power plants, we contribute to global warming. Including any loss of trees or forests also contributes, considering trees convert carbon dioxide to oxygen.