Which is most abundant grrnhouse gas in earth's atmosphere?

Answer 1

Water vapor is actually the most common greenhouse gas. However as it plays little part in global warming, and it doesn't stay long in the atmosphere (It is constantly falling as rain) it is not classed as a dangerous greenhouse gas. It contributes to the natural greenhouse effect which keeps the earth comfortably warm.

Carbon dioxide is the Most common greenhouse gas that contributes most to the accelerated greenhouse effect and so to global warming.

Answer 2

Water vapor is the most common naturally-occurring greenhouse gas.

Carbon dioxide is the most common anthropogenic (man-made) greenhouse gas.

Water vapor is the most common greenhouse gas, but man has no control over its levels. Carbon dioxide, the high levels of which we are responsible for, is having the largest effect on the recent increases in global temperature.

A:The most common greenhouse gas for the natural greenhouse effect is water vapour. Man has no control over its levels. When it gets too high, it falls as rain.

The most common greenhouse gas responsible for the accelerated greenhouse effect is carbon dioxide (CO2), added by humans burning fossil fuels. CO2 is having the largest effect on the recent increases in global temperature.

A:Water vapor is the biggest, but carbon dioxide is the biggest one we can do anything about.

Water vapor is the most common greenhouse gas and accounts for up to 70% of greenhouse warming. However, water vapor is mostly caused by natural activity, so it is impossible to regulate. The next most common is carbon dioxide, caused by burning fossil fuels (coal, oil, wood and gas) and cutting down forests. This accounts for up to 26% of greenhouse warming. After that is methane (9%) and ozone (7%).

Answer 3

The most abundant greenhouse gas is water vapour (H2O).This occurs naturally and cannot build up in the atmosphere as it falls as precipitation (though a warmer atmosphere can hold more moisture).

The most abundant greenhouse gas that is building up in the atmosphere (and causing global warming) is carbon dioxide (CO2).

Answer 4

Water vapor is the most abundant greenhouse gas, by far. In some locations, it is up to 4% of the atmospheric content. However, it contributes a disproportionate amount (less) to the greenhouse effect because of where in the atmospheric spectrum (the atmospheric window) it absorbs radiation.

Answer 5

Water vapor far and away absorbs more radiation then all other greenhouse gases combined (over 80%). The one that We "produce" the most (CO2) is a weak GHG and produces about 5% of all absorbing, while the Ones that We 'let out just a little bit' are the more, and much more, potent GHGs. Methane is probably the strongest we see in the actual man induced emission catagory.

Answer 6

Water vapor is the most abundant greenhouse gas in the atmosphere, accounting for somewhere between 1/2 and 2/3 of the total effect. CO2 is the next most abundant.

Answer 7

This gas is carbon dioxide.

Answer 8

This gas is carbon dioxide.