The greenhouse effect is defined as when the Earth's atmosphere becomes thick with gases and substances which trap the sun's radiation, making the Earth warmer.
An example of the greenhouse effect is global warming.
The retention of part of the Sun's energy in the Earth's atmosphere in the form of heat as a result of the presence of greenhouse gases. Solar energy, mostly in the form of short-wavelength visible radiation, penetrates the atmosphere and is absorbed by the Earth's surface. The heated surface then radiates some of that energy into the atmosphere in the form of longer-wavelength infrared radiation. Although some of this radiation escapes into space, much of it is absorbed by greenhouse gases in the lower atmosphere, which in turn re-radiate a portion back to the Earth's surface. The atmosphere thus acts in a manner roughly analagous to the glass in a greenhouse, which allows sunlight to penetrate and warm the plants and soil but which traps most of the resulting heat energy inside. The greenhouse effect is essential to life on Earth; however, the intensification of its effect due to increased levels of greenhouse gases in the atmosphere is considered to be the main contributing factor to global warming .
A phenomenon in which the atmosphere of a planet traps radiation emitted by its sun, caused by gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but retain heat radiated back from the planet's surface.
The greenhouse effect could lead to global warming or, at least, climate change.
The warming of a planet's surface and lower atmosphere caused by trapped solar radiation: solar shortwave radiation penetrates to the planet's surface and is reradiated into the atmosphere as infrared waves that are then absorbed by carbon dioxide, water vapor, etc.
Greenhouse-effect Sentence Examples
The lecture explains the greenhouse effect and the percentage of each of the greenhouse gases in the atmosphere.
The burning of fossil fuels and the resulting increased levels of carbon dioxide in the atmosphere contribute to the greenhouse effect.
The problem comes with the carbon-altering activities that humans take part in, such as the burning of fossil fuels and other biomass, which puts more carbon into the atmosphere, causing the greenhouse effect.
In some areas, permafrost is now emitting carbon, which could potentially accelerate the greenhouse effect and global warming.