Q:

How does global warming happen?

A:

Quick Answer

Global warming happens when carbon levels in the atmosphere rise, trees are cut down in large quantities and the ozone layer is destroyed. Without managing these things, the Earth risks suffering from adverse effects.

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Full Answer

Global warming is an issue of concern to many organizations and governments around the world and that is why concerted efforts have been made to curb the issue. Below are some of the ways in which global warming occurs:

  • Greenhouse effect — as energy resources are used, such as fossil fuels, to power vehicles and industrial activities, greenhouse gas emission is greatly increased. Greenhouse gases allow the sun's heat to penetrate the surface of the Earth but then trap the heat from escaping into space. This is called the greenhouse effect and over time it causes a rise in temperatures on Earth.
  • Ozone layer destruction — as gases from the industries rise into the outer atmosphere, they get deposited in a region called the ozone layer. Large amounts of these fumes cause damage to this layer allowing more heat  from the sun to penetrate.
  • Deforestation — trees are important as they take in carbon dioxide and release oxygen thus reducing the amount in the atmosphere. As trees are cut down in large numbers, more carbon dioxide is left in the atmosphere leading to the greenhouse effect. Without enough trees, the amount of rainfall experienced on Earth goes down which also increases global warming.
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Related Questions

  • Q:

    How does global warming affect people?

    A:

    Global warming affects people by impacting climate with higher temperatures and catastrophic weather conditions, causing health problems by exacerbating pollution and spreading pests, and decreasing living space through rising sea levels. These conditions bring on famine, drought, epidemics and financial turmoil.

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  • Q:

    Is global warming fact or fiction?

    A:

    Modern models of climate change are grounded in observable evidence and reasonable inference, so they can be regarded as factual. Global warming happens when sunlight warms the Earth's surface and causes it to radiate heat back up into the atmosphere. That heat is then trapped by several known gases.

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  • Q:

    How do you write a global warming thesis statement?

    A:

    According to the Online Writing Lab at Purdue University, your thesis statement should be a debatable one which any reasonable person could agree or disagree with. Concerning global warming, whether the stance is for or against, making a claim about its impact or the policy decisions made by government backed by evidence is a much stronger thesis then a generalized statement about whether global warming is good or bad.

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  • Q:

    What gases play a role in global warming?

    A:

    The gases that play a role in global warming include carbon dioxide, nitrous oxide, methane, chlorofluorocarbons and water vapor. These compounds are called greenhouse gases because their presence in the atmosphere can be compared to the actions of the glass surrounding a greenhouse.

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