Polar bears may disappear as the sea ice continues to melt. Thus, scientists intend to figure out why the global temperatures have risen, but that thus far they have not found the solution for global warming. A few scientists think global warming is natural; however, the majority of plentiful scientists think global warming is manmade because of emissions from transportation, air conditioning and
Because they reflect solar energy back into space they have a cooling effect on the world. The greenhouse gas, carbon dioxide is also produced however the CO2 produced is insignificant when compared to emissions created by humans. (see also featured article - Do Volcanoes cause climate change) Ocean current - The oceans are a major component of the climate system. Ocean currents move vast amounts of heat across the planet. Winds push horizontally against the sea surface and drive ocean current patterns.
Furthermore, there are arguments that global warming is not even a threat as assumed by the majority. In this paper I will present many flaws in the Global warming conundrum ranging from Bias to Political issues. What the majority has come to believe might not be the entire truth. So really, which factors contribute to the global climate change and how do these factors impact the earth compared to human activity? Yes, our earth is currently warming up, but who says this is a bad thing?
Due to the increase in greenhouse gases less solar energy is reflected back into space and more solar radiation is absorbed by the Earth causing the increase in ice and snow melting (Main & Ahlenius, 2011). With this background information the change of climate conditions such as, snow, rain, winds, and temperature is continuously happening all around the world and will continue to worsen in the future. A good indication of climate change is to look at the melting of glaciers and the Polar Regions as the Arctic is one of the fastest warming regions of the world. However, since the Polar Regions are so big and cold it would be impracticable for humans to live and carry out research there. Therefore, by using applications of remote sensing we can easily observe inaccessible areas from satellites to effectively monitor and map snow and ice cover in Polar
“The increase in the mean temperature of the earth due to excessive emissions of greenhouse gases such as carbon dioxide, methane, and nitrogen.” ( Green) These extra gases are making it hard for heat to escape the Earth’s atmosphere resulting in warmer temperatures. Here is a model of the Greenhouse Effect retrieved from http://epa.gov/climatechange/kids/greenhouse.html. Ethical Issues on Global Warming There are many causes of Global Warming to include Carbon Dioxide from power plants, cars, airplanes, and from buildings. “In 2002 about 40% of U.S. carbon dioxide emissions stem from the burning of fossil fuels for the purpose of electricity generation.”(Ayres) 93% of electricity generations is produced by coal. 33% of the carbon dioxide comes from vehicles.
Effects of Global Warming on Walruses When people talk about global warming, they think of the polar ice caps being melted and humans causing too much pollution in the air from various activities. It is actually an overall increase in the average temperature of the Earth’s surface caused by gases being trapped in the atmosphere by the “greenhouse effect” [3]. From the North down to the South Pole temperatures are rising and the world is heating up fast. This has caused many changes in the nature of things. One such victim of the change in our climate is a pinniped most commonly known as the walrus.
The Development of Climate Change 1. How and why has climate changed in the past? Our climate has changed a lot over the past 2 billion years, Earth’s climate has alternated from “Ice House” like today’s climate and “Hot House” like the dinosaur period. The average temperature on planet Earth has risen by 1.1 degrees F since the beginning of the 20th century, most of the warming in the 20th century happened from about 1910 to 1945 and since 1976. 20th century warming is likely to be the biggest, during any century over the past 1,000 years for the Northern Hemisphere.
It inspires nightmares of a troubled future and propels apocalyptic drams such as the summer 2004 movie “The Day After Tomorrow.” The twentieth century was the warmest of the past 1000 years and 19 of the 20 hottest years on record occurred after 1980 (Climate Change Facts). Is it from human activities or is it natural? Nobody has the answer; even ecologists have controversies among them about this question. Ecologists are still trying to prove their opinions but they don’t have the actual data to demonstrate their points. According to United Nations most of the warming is resulted from human activities not nature.
Because “science is an encoded form of knowledge that requires translation in order to be understood” (Ungar 2000), many studies have shown that the media plays a very crucial role in raising people understanding of the scientific world and the environmental issues, especially the climate change and global warming. Climate change has become an important issue today and people need to understand how serious it is in order to take actions to prevent it from getting worse; and the only way the information can get to the public is via the mass media. Today global warming is raising many concerns and the media coverage is increasing but yet many scientists complain about the limited coverage of the subject because it seems that it is not enough compared to the gravity of the situation. Because of the lack of information, many people are still very skeptical and some are just very confused about the global warming and how it affect our atmosphere. Studies have found that most people learn a large amount about science through consuming mass media news (Wilson 1995) and many surveys have found that television and daily newspaper are their primary sources of information (Project for Excellence in
The Moon has no atmosphere to block some of the sun’s rays in the day or to trap heat at night, and this is why temperatures on the Moon range from -233 degrees Celsius to 123 degrees Celsius at those respective times. It is the presence of greenhouse gases, not limited to but including Carbon Dioxide, Water Vapour and Methane, which protect the planet from harmful radiation and trap in heat which equips our planet with the tools for life. Global Warming refers to climate change which gradually raises the average temperature of the earth’s lower atmosphere, generally attributed to the greenhouse effect caused by carbon dioxide, CFCs, and other pollutants. Scientists and the general public are concerned that there may come a point when the damage caused by human-caused Global Warming may become irrevocable, leading to permanently changed ecosytems and more extreme climates across the