The greenhouse effect is a warming of Earth's surface and the air above it. It is caused by gases in the air that trap energy from the sun. These heat-trapping gases are called greenhouse gases. The most common greenhouse gases are water vapor, carbon dioxide, and methane.
What is mean by green house effect?
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. greenhouse effect.
Everyday examples of the greenhouse effect. This is the source of the Earth's so-called "greenhouse effect", which both makes the Earth's surface warmer than it would otherwise be, and also allows the atmosphere to cool to outer space. The main greenhouse gases are water vapor, carbon dioxide, and methane.
In order, the most abundant greenhouse gases in Earth's atmosphere are:
- Water vapor (H. 2O)
- Carbon dioxide (CO.
- Methane (CH.
- Nitrous oxide (N. 2O)
- Ozone (O.
- Chlorofluorocarbons (CFCs)
- Hydrofluorocarbons (incl. HCFCs and HFCs)
Definition of global warming. : an increase in the earth's atmospheric and oceanic temperatures widely predicted to occur due to an increase in the greenhouse effect resulting especially from pollution. See global warming defined for English-language learners. See global warming defined for kids.
The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere. If a planet's atmosphere contains radiatively active gases (i.e., greenhouse gases) they will radiate energy in all directions.
Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect"1 — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
Gases in the atmosphere such as carbon dioxide do what the roof of a greenhouse does. During the day, the Sun shines through the atmosphere. Earth's surface warms up in the sunlight. At night, Earth's surface cools, releasing the heat back into the air.
Carbon dioxide (CO2) and other greenhouse gases act like a blanket, absorbing IR radiation and preventing it from escaping into outer space. The net effect is the gradual heating of Earth's atmosphere and surface, a process known as global warming.
The Earth absorbs this energy and radiates heat energy at a longer wavelength (infrared radiation) back into the atmosphere. The greenhouse gases absorb some of this energy and radiate much of it back towards the surface whilst the rest is radiated out to space.
People grow tomatoes and flowers and other plants in them. A greenhouse stays warm inside, even during winter. Sunlight shines in and warms the plants and air inside. But the heat is trapped by the glass and can't escape.
Greenhouse gases are certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) that trap energy from the sun. Without these gases, heat would escape back into space and Earth's average temperature would be about 60º F colder.
The major greenhouse gas is of course carbon dioxide (CO2) and nearly all CO2 comes from fossil fuels and land-use change. But methane (CH4) and nitrous oxide (N2O), which mostly come from agriculture and waste, are also significant GHGs and shouldn't be discounted.
Green House Effect and Global Warming Essay 4 (250 words) Greenhouse effect is the process on the earth planet caused by the gases trapping heat and energy from the various sources. Such gases are called as green house gas like CO2, methane, nitrogen oxide, CFCs, ozone, etc trap heat and warm the earth surface.
greenhouse effect. n. 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.
But some gases in the atmosphere—most importantly carbon dioxide, or CO2, but also methane, nitrous oxide, and water vapor—will not let all the infrared radiation pass through. These “greenhouse gases” are very good at absorbing infrared light. They spread the heat back to the land and the oceans.
The following is a list of 10 steps YOU can take to reduce greenhouse gas emissions:
- Reduce, Reuse, Recycle.
- Use Less Heat and Air Conditioning.
- Replace Your Light Bulbs.
- Drive Less and Drive Smart.
- Buy Energy-Efficient Products.
- Use Less Hot Water.
- Use the "Off" Switch.
- Plant a Tree.
The Kyoto Protocol is an international treaty which extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that (part one) global warming is occurring and (part two) it is extremely likely that
Without them the Earth would be too cold for us, or any other living thing, to survive. Naturally-occurring greenhouse gases, such as carbon dioxide and methane, allow solar radiation to reach the Earth's surface, while trapping radiation from the Earth on its way back out to space.
A greenhouse gas is any gaseous compound in the atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding heat in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.
A carbon footprint is defined as: The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2). When you heat your house with oil, gas or coal, then you also generate CO2.