The second cause of global warming is attributed to man. Human activities such as burning fossil fuels have contributed greatly to global warming. When these fuels are being burned, toxic gases are being released into the atmosphere such as carbon dioxide. When these gases are released, the solar energy is trapped which automatically causes the temperature to increase.…
Global warming is a progressive increase in the temperature of the earth's atmos-phere which customarily applies to the greenhouse effect, (the trapping of the sun's warmth in a planet's lower atmosphere), caused by increased levels of carbon dioxide and other pol-lutants. With the increasing temperature of the Earth (due to the sun expanding in size), ‘global warming is expected to occur in the future, glaciers will continue to melt and sea levels rise’ quoted by environmentalist, Tim Flannery.…
Global warming is the rise of average temperature in the earth’s atmosphere since the late 19th century. Since the beginning of the early 20th century, the earths mean surface temperature had increased by around 0.8 degrees. Warming of the climate system had become more obvious and scientists are 90% sure that the main cause of the increase in temperature in due to the increasing concentrations of greenhouse gases due to human activities such as deforestation and burning of fossil fuels.…
Global warming has become a heated topic over recent years as we notice more subtle changes in our environment. Some scientists even think it is a bigger problem than we can even imagine and there are many factors that play a part in global warming. So what exactly is global warming? This refers to the recent rise of Scientists are estimating a 2 to 11 degree increase of the Earth’s average surface temperature due to greenhouse gases over the next one hundred years. Most of those greenhouse gases are from human activity such as burning fossil fuels, and deforestation. Even the smallest change in warming weather can have large and potentially dangerous effects on Earth. However, global warming is only one part of climate change. Climate change is any significant change in climate over periods of time. This refers to major changes in temperature, rainfall and wind patterns, over several decades. Thus we see global warming is not something that we should be worrying about for the future. It is an issue that needs to be addressed now because it actually predates every living person today.…
Global warming refers to the gradual increase of the Earth's average surface temperature, due to greenhouse gases in the atmosphere. Climate change is a broader term that refers to long-term changes in climate, including average temperature and rainfall, as well as changes in the seasonal or geographic variability of temperature and rainfall.…
Global warming is the gradual increase in the temperature of the earth's atmosphere and oceans, mostly caused by the greenhouse effect. The greenhouse effect is where incoming short-wave solar radiation from the sun can pass through the earth’s atmosphere to reach the surface; some of this radiation is then reflected back into space at a longer wavelength. Greenhouse gases in the atmosphere absorb some of this long wave radiation and re-radiate it back to the earth’s surface, trapping heat in our atmosphere. There have always been natural fluctuations in the earth’s temperature, for the last 2.5 million years earth has shifted between cold glacial periods, and warmer interglacial periods. We are currently in an interglacial period, where the temperatures have been warm, with very small fluctuations for the last 10,000 years. Over the last century global temperatures have increased rapidly, there was a sharp rise in temperature between 1900 and 2000 of 0.7oC. Most scientists agree that this sharp increase was caused by human activities (anthropogenic). This continued increase in temperatures could have many major impacts worldwide, both positively and negatively.…
Global warming and climate change refer to an increase in average global temperatures. Natural events and human activities are believed to be contributing to an increase in average global temperatures. This is caused primarily by increases in “greenhouse” gases such as Carbon Dioxide (CO2).…
Climate changes occur naturally over long periods of time on Earth, and it has been this way throughout Earth’s history. Currently, anthropological influences on earth have triggered a quickening rise in global temperatures and this in turn is causing a rapid change in earth’s climate. One of the major changes currently happening on earth is the melting of the polar ice caps. Major impacts relating to the melting of the polar ice caps include changes in ocean temperature, changes in ocean salinity, sea level rise/ flooding, changes in ocean circulations, loss of biodiversity, and loss of ecosystems as well as their services. All of these impacts could lead to devastating consequences for many…
Earth's climate constantly changes, and many scientists believe that the temperature rises we see in this decade are a natural phenomenon that occurs every so many years. Around 25,000 years ago, it is believed that earth was covered by large areas of ice. And then, about 7,000 years ago, temperatures began to rise and the "Ice Age" came to an end.…
Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global warming has become perhaps the most complicated issue facing world leaders because it is related many perspectives in our life like economics, climatology, sociology, political science, and agronomy. Understanding the relationship between these perspectives can help us understand more about global warming.…
The first reason is because global warming comes and goes. The earth naturally heats up and cools down. Thirty years ago we thought the biggest threat was global cooling and now the biggest threat is global warming. Through out history there has been numerous cooling and warming periods and we are now going though on of those natural warming periods. We also experienced a warming period during the Medieval Warm Period around 1100 AD when Vikings settled into Greenland because it used to be green and the perfect place to grow crops (1); grapes suitable for winemaking were also reported growing in England (2); and the tree line in Scandinavia was 100–200 m higher than present (3).…
About 70,000 years ago there was an ice age. At that time ice sheets expanded throughout the world, the planets landmass grew, and Sea levels fell. Later on temperatures rose again, the ice receded, see levels climbed, and eventually settled in today's coastlines. Global temperatures are on the rise again, but this time from humans who are burning huge amounts of fossil fuels. The fossil fuel releases lots of co2 and creates a lot of heat, which…
What is global warming? This is a very popular issue all over the world. In order to learn more about global warming, we should go through what makes the earth warm and how warming affects the earth. The first thing we need to be familiar with is the greenhouse effect. It plays an important part in controlling the earth temperature. Thus, we need to know how the greenhouse effect is to know how it could affect the earth.…
The young teen climbs up the stairs and smiles. Looking down at her phone, she doesn't realize that she just killed a polar bear. She runs back downstairs, realizing she left the faucet on, and the lights too, but it is too late. This is carbon Footprints and climate change are real, and this is it. If the climate change keeps changing at this level, the polar caps will melt. Even the slightest spike in your carbon footprint can negatively impact the environment. This is not some extraterrestrial event that randomly happened. This has happened for many, many years. This is the work of us, humans. Things like this happen every day. Climate change will harm the environment because of the effect on the polar caps, its source is even worse, and…
Approximately two-thirds of the energy earth receives from the sun is absorbed by land masses and oceans and is then released into the atmosphere as warm, long-wave radiation. The atmosphere of earth is full of so-called greenhouse gases such as water vapor, carbon dioxide, ozone, methane, and nitrous oxide that act like a blanket, trapping some of the heat radiating from the land and oceans and preventing too much energy from escaping into space. The gas blanket works in much the same way as the glass panels of a greenhouse, serving to trap energy and keep temperatures at a steady level. The trapped heat keeps earth at a comfortable average temperature of about sixty-three degrees Fahrenheit. This process is known as the greenhouse effect.…