Emily Koldys . Professor Julia Chan . Chem 126 H . 25 April

concerned of the effects climate change could have on the world. There is so much evidence that climate change exist so we need to find a way to stop climate change so the effects of climate change won’t happen. We soon learned that the cause of climate change could have been through greenhouse gases. There are different types of greenhouse gases, but the one we’re going to talk about is carbon dioxide. Greenhouse gases (which are located below the atmosphere) are gases that allow light from the sun to pass through the gases and some light/heat back out into space, but a certain amount of light gets trapped on the earth. This is called the greenhouse effect.

They are known to have effects that harm the Earth and scientist use these harmful effects to “prove” that “global warming” may be real. Greenhouse gases are gases that trap heat in the atmosphere by the greenhouse effect. This is known to be a bad thing, but scientific evidence has proven that this is both a good and a bad thing. Greenhouse gases change the temperature of the Earth making Earth’s surface temperature both warmer and cooler depending on the amount of greenhouse gases in the atmosphere (Overview of Greenhouse Gases). Without greenhouse gases, the Earth would be a very cold place, the average surface temperature of Earth would be about zero degrees Fahrenheit. Due to the temperature being zero degrees, all the water on Earth would freeze and turn into ice (Overview of Greenhouse Gases). If the Earth’s surface temperature was this low, Earth would not be essential for life. This shows that the positive effects of greenhouse gases being released into the atmosphere outweigh the negative effects and leads us to believe that “global warming” is not a severe problem.

These gasses trap warmth and reason the planet to warm through a procedure called the greenhouse effect. Since 1751 around 337 billion metric huge amounts of CO2 have been discharged into the climate from the using of fossil fills and concrete generation, expanding air CO2 from the pre-mechanical level of around 280 ppm (parts per million), to a high of 400 ppm in 2013. Methane, which is expanding in the climate because of farming and fossil fuel use, traps 84 times as much warmth as CO2 for the initial 20 years it is in the environment, and is in charge of around one-fifth of a dangerous atmospheric climate change since 1750. Nitrous oxide, fundamentally discharged through farming practices, traps 300 times as much warmth as CO2. Over the twentieth century, as the convergences of CO2, CH4, and NO2 expanded in the air, the earth warmed by pretty nearly 1.4°.

Climate change is influenced by the greenhouse effect which is the increase of Carbon dioxide, Methane, Ozone and Nitrogen Oxide. On one hand, the presence of these gases in the atmosphere make the earth habitable with respect to regulating the earth’s temperature. However, an increase in the concentration of these gases results in trapping energy in the atmosphere and this in turn increases earth’s temperature. “Global greenhouse gas emissions have grown since pre-industrial times, with an increase of 70% between

Greenhouse gases are any gases that are responsible for the greenhouse effect which is the trapping of gas in our atmosphere creating a warming effect. The warming effect is the most significant problem of

Its negative effects can be corrected by using alternative energy sources (such as solar and wind-powered energy) that do not burn fossil fuels. Nitrous oxide emissions can also be reduced by decreasing the use of nitrogen-based fertilizers or by using them more effectively.

Certain gases released into the atmosphere block heat from escaping. Gases that remain semi-permanently in the atmosphere and do not undergo physical or chemical changes in response to temperature are described as “forcing” climate change while those gases that respond physically or chemically to changes in temperature are termed “feedbacks” (National Aeronautics and Space Administration (NASA), 2016). Known gases that contribute to the greenhouse effect (global warming) include water vapor, nitrous oxide, methane, carbon dioxide and chlorofluorocarbons (CFCs). As water vapor (the most abundant greenhouse gas) increases, the Earth’s atmosphere warms and the possibility of clouds and precipitation increases too. Nitrous oxide is produced by soil cultivation practices especially through the use of commercial and organic fertilizers, fossil fuel burning, nitric acid production and biomass burning. It is a powerful greenhouse gas. Methane is produced through natural sources and human activities. Some of which include the decomposition of wastes in landfills, agriculture and ruminant digestion and manure management. Carbon dioxide is released through natural processes such as respiration, and volcanic activities and through human activities such as deforestation, fossil fuel burning, and land use changes. Studies have shown that humans have

Global climate has been drastically changing over the past decade reflecting a wide range of impacts that affect not only the environment, but humans as well. Over the last 50 years the magnitude of global warming has been increasing mainly due to human activities. Since the industrial revolution in the 1800s economic growth has been driven by the progress of manufacturing processes, these have significantly contributed to global warming. It is in this period of time when the global concentration of greenhouse gas levels in the atmosphere had a significant increment from 280 parts per million (ppm) in the 1800s to the modern levels of 400 ppm in 2016. (CITE acs.org).Greenhouse gases are the most significant drivers of climate change due to their persistent effects over a long period of time that can therefore negatively affect the present and future generations.

The issue of Global climate change is one of the utmost economic, social, and environmental challenges of this century. Analysis shows that greenhouse gas emissions are responsible for changes in the pattern of climate around the Globe.

Carbon dioxide is the greenhouse gas naturally found in the atmosphere. Since the advent of the Industrial Revolution in the 1700s, humans have devised many inventions that burn fossil fuels such as coal, oil, and natural gases, which, along with other human activities such as clearing land for agriculture or urban settlements, help some of these greenhouse gases accumulate in the atmosphere that in turn trap more heat radiation in the atmosphere causing the Earth’s climate to become warmer than it would naturally (Mastrandrea). This unnatural phenomenon is termed global warming by scientists and they blame it for an increase in the Earth’s surface temperature of about 0.6°C (about 1°F) over the last 100 years (Mastrandrea).

Ever since the Industrial Revolution humans have been releasing more and more carbon dioxide, which is accumulated in the atmosphere, this leads to the creation of the greenhouse, this disrupts our Earth’s climate. The greenhouse effect is when the energy from the sun drives the earth’s weather and climate and heats the earth’s surface, in turn the earth will radiate that energy back into earth which will cause a rise in temperature on earth because the gasses retain some of the outgoing energy trapping heat. Greenhouses gasses are carbon dioxide, methane, nitrox oxide water vapor and other gasses. These gasses originate from burning fossils which explain their capacity to produce energy. At first greenhouse effect was considered as a positive aspect but when greenhouse gases increase,

Global warming can be defined more precisely by this quote: “Without the greenhouse effect, the planet would be too cold to support life. Over time, the amount of greenhouse gases trapped in Earth’s atmosphere has increased significantly, causing worldwide temperatures to rise” (“Global Warming and Climate Change”). The greenhouse effect traps heat throughout the globe; thus warming the world at an alarming rate. One type of greenhouse gas is methane. “Methane, for example, is a greenhouse gas that is twenty-one times as potent as carbon dioxide.” (“Global Warming and Climate Change”) Methane is more harmful to the environment because plants cannot absorb it and turn it into oxygen, plants can only absorb carbon dioxide.

Global warming is a widespread problem that affects the entirety of our world. As Earth's temperature gradually increases , our environmental problems grow, and the hope of reversing the effects diminish. Everyday our Earth transforms sunlight into infrared light, which causes the habitable climate in which we live. Due to the abundance of greenhouse gases in our atmosphere, infrared light becomes trapped, gradually increasing the Earth's overall temperature. Over billions of years the Earth has managed to retain relative levels of greenhouse gases, since the spread of human activity the levels of gases like carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons have significantly increased. Human related activities such as deforestation, combustions of fossil fuels, landfills, the use of fertilizers, etc. have all impacted our greenhouse gas levels. Of course, there are many natural sources, such as manure, decay of organic matter, fires, etc. but none of these sources have had as major of an effect as that of those related to mankind.

Nevertheless, not all gases cause global warming and disrupt the fragile balance of our atmosphere. In fact the main few, like methane and water vapors, are even very surprising because they’ve been around sense the dawn of mankind, and the earth as a whole. Methane can result from natural sources as well as human activity; however, there are specific habits and practices that dramatically increase the production of methane. Many of which include the decomposition of a variety of wastes in landfills, many agricultural practices

Greenhouse gases are compounds in the atmosphere that can trap and hold extra heat, which increases the temperature in the atmosphere. Greenhouse gases is the cause of the greenhouse effect that leads up to global warming. The greenhouse effect is the trapping of the sun’s warmth in the lower atmosphere that is due to the visible radiation from the sun. The solar radiation reaches the Earth’s atmosphere, then the rest of the sun's energy is absorbed by the oceans and lands which result in the heating of the Earth. After that the heat from the Earth goes towards space, some of the heat is trapped in the atmosphere by greenhouses gases which make the Earth warm enough to tolerate living life. The burning of fossil fuels and land clearing start to increase the number of greenhouse gases which travels into the atmosphere. The result of trapping extra heat cause the Earth’s temperature to rise. Scientist's has proven that the constant increase of heat in the atmosphere is caused by humans. The reason humans are proven guilty for the increase of global warming is because of the amount of carbon that is put into the atmosphere. Carbon is released from burning coal, oil, and gas or cutting down and burning forests. Carbon (CO2) is known as the main source of heat-trapping gas which is mainly responsible for the increase of warming over the years. The removal of trees is another cause of global