Summary:
Popularly known as global warming, the theory of climate change has aroused intense controversy regarding the extent to which human activities affect global temperatures and weather patterns. James Hansen, a researcher from NASA announced with confidence that global warming had arrived.
Analyzing James Hansen Global Warming Theory
Popularly known as global warming, the theory of climate change has aroused intense controversy regarding the extent to which human activities affect global temperatures and weather patterns. James Hansen, a researcher from NASA announced with confidence that global warming had arrived. Many of his peers criticized him for taking such a public role on a scientific issue. Hansen has become the world's top researcher on global warming. He not only believes that global warming is coming it too is accelerating. He argues that natural changes such as humans control the climate depending on the changes they make in the atmosphere. Furthermore, he explains that humans change the climate by burning fossil fuels that pump out greenhouse gases like carbon dioxide, methane and chlorofluorocarbons. He also quotes that "research shows that man has just 10 years to reduce greenhouse gases before global warming reaches what he calls a tipping point and becomes unstoppable." He argues that the white house is not allowing the public to realize the importance of global warming.
In addition, scientific data reveals that human activity is largely responsible for the average global temperature during the past fifty years. Global warming is changing the world's climate as evidence by rising sea levels, thinning Artic ice, record numbers of hot days and heavy rains. Unless the nations of the world agree to significantly reduce greenhouse gas emissions, the environment, economy, and human health will be unfavorably affected.
Evidence of global warming has been detected with rising of average temperature, precipitations patterns are changing, glaciers are retreating, sea levels are rising and Artic ice is thinning. Without a doubt, climate change in many parts of the world will definitely affect human health, ecological system, and important socioeconomic sectors.
Most climatologists accept some increase in temperature over the past century as a fact. The authors of the UPCC "Summary for Policymakers" think that a lot of it has to do with humans. The IPCC writes, "Most observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations." However, not all members of the IPCC agree, many believe that this is cause from a natural variability. They believe that the warming may be natural. This is because the global climate has been far from stable in the past.
Moreover, Hanson predicts that the atmospheric concentrations of carbon dioxide and most other greenhouse gasses are projected to increase significantly during the next 100 years. Emissions of greenhouse gasses and sulfur dioxide will depend on number of factors. In Hanson's theory, he believes that the most important fundament to prevent global warming is humans.
Based on Hansen's evidence I too believe that global warming is coming and that only we can prevent it from happening. Since burning coal produces electricity, we should cut down on electricity. Coal combustion is the largest amount of carbon dioxide per energy unit of any fossil fuel. The result on cutting down on electricity would be to save money, breath cleaner air, and help reduce the global warming problem. Every kilowatt-hour of electricity saved keeps 1.5 to 2 pounds of CO2 out of the atmosphere.
Secondly, decreasing the use of your vehicle would help reduce greenhouse gases. Driving a smaller, efficient used car would help you save money on gas, oil, among prevention on the atmosphere.
Recycling is the best way to prevent global warming. Try to reuse recycled paper, save containers or anything that you may be able to use in the future.
In conclusion, Global warming gives the appearance of being the mother of all environmental issues because it could affect the entire world, and the entire world contributes to it. Even though the facts behind this theory are poorly understood, many scientist urge people to take action.
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