Q:

What does global warming mean?

A:

Global warming is the process by which the Earth’s average atmospheric temperature increases over time. The Earth has experienced both global warming and cooling during its 4.5-billion-year history. However, the current rate of temperature increase exceeds that which occurred in the past. Many scientists suspect that the accelerated rate of temperature increase is the result of human behavior.

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The primary driving force behind global warming is the change in the chemical composition of the Earth’s atmosphere. By burning hydrocarbons, humans release elevated levels of carbon dioxide into the air. As the atmosphere’s carbon concentration goes up, the planet retains more of the heat from the sun. The process works similarly to the way a greenhouse does, which is why scientists refer to carbon dioxide as a “greenhouse gas.” Carbon dioxide is not the only greenhouse gas, but it is the most important one for humans to monitor. Methane, nitrous oxide and fluorinated gases also contribute to global warming.

Rising temperatures cause a variety of effects on the planet. While a few of these effects are beneficial, most are detrimental to the current balance of nature. For example, rising carbon dioxide levels may cause plants to grow more quickly, but the accompanying rise in temperature may cause the polar ice caps to melt, raising the global sea level.

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Related Questions

  • Q:

    What are some reasons why global warming is fake?

    A:

    According to GlobalResearch.ca, as of 2014, the fact is that climate is always fluctuating, and assuming that climate was stable prior to the Industrial Revolution is wrong. No human influence in the pattern of global temperature was detected, despite spending $50 billion to find it. No computer model is accurate enough to predict the future, and thousands of scientists have signed declarations stating they question the existing evidence.

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  • Q:

    How can you help prevent global warming?

    A:

    Reducing personal energy usage is the most effective way to help stop global warming, as the Natural Resources Defense Council explains. The burning of fossil fuels, such as oil and coal, is the biggest cause of global warming, because fossil fuels release carbon dioxide into the air.

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  • Q:

    Is it true that global warming doesn't exist?

    A:

    Global warming certainly does exist and has since the first atmosphere formed on Earth. Some global warming has always been present and prevents the Earth from radiating energy back into space at the same rate it receives energy from the sun. When global warming is discussed in science and politics, it is often called anthropogenic, or "human-caused," global warming. This has also been demonstrated to exist.

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  • Q:

    Why does global warming occur?

    A:

    Global worming is caused by the retention of the energy of the Sun in the atmosphere. The Earth is warmed by light from the Sun. This light passes through the atmosphere and strikes the surface. Some of the energy is reflected back into space, while some is absorbed by the ground, water and air. The energy that isn't radiated back into space warms the Earth.

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