Greenhouse gases

Greenhouse gases

Greenhouse gases (pronunciation: /ˈɡriːnhaʊs ɡæsɪz/) are gases in the Earth's atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.

Etymology

The term "greenhouse" is derived from the process used in greenhouses, where the heat from the sun is trapped inside to create a warmer environment for plants. The term "gas" comes from the Greek word "chaos", meaning "empty space" or "void".

Types of Greenhouse Gases

The primary greenhouse gases in the Earth's atmosphere are:

• Water vapor
• Carbon dioxide
• Methane
• Nitrous oxide
• Ozone
• Chlorofluorocarbons

Impact on Climate Change

Greenhouse gases have a significant impact on climate change. They trap heat in the atmosphere, leading to a rise in global temperatures, a phenomenon known as global warming. This can lead to a variety of environmental changes, including rising sea levels, increased frequency and severity of storms, and shifts in plant and animal populations.

Measurement and Regulation

The concentration of greenhouse gases in the atmosphere is measured in parts per million (ppm), parts per billion (ppb), or parts per trillion (ppt). Various international agreements, such as the Kyoto Protocol and the Paris Agreement, have been established to regulate and reduce greenhouse gas emissions.

Related Terms

• Greenhouse effect
• Global warming
• Climate change
• Kyoto Protocol
• Paris Agreement

External links

• Medical encyclopedia article on Greenhouse gases
• Wikipedia's article - Greenhouse gases

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