Carbon Dixide
Carbon Dioxide.
the two major gases that cause greenhouse gases are methane and carbon dioxideco2, methene, evaporates
Carbon dioxide is emitted by burning fossil fuels (coal, oil and natural gas).Methane is emitted by bad farming practices in cattle and rice farming.
When we speak of global warming, we usually mean the recent increase in average global temperatures. The two gases considered to be the major contributors to this effect are carbon dioxide and methane.
carbon dioxide (CO2)methane (CH4)CFCs (chlorofluorocarbons)water vapor (this is a natural greenhouse gas that we cannot control)Another Answer:To understand the greenhouse effect though, we need to know the actual order of these gases:1. Water vapor produces most of the greenhouse effect (over 80%). When the IPCC models look at the predicted warming they include increases in water vapor to produce the warming trend they predict.2. Next in line is CO2. This makes up 0.04%. Man is a minor contributor (about 6%) of this gas.3. Third line line is Methane. Man is a contributor here as well. In fact man makes up about half of this gas. The total warming factor attributed to Methane is well under 1% of the whole issue though.4. All other gases are considered too minor to be a factor. In fact CFC's are blamed for reducing ozone which has, in turn, caused the Antarctic to cool. The values f these minor gases are below the threshold of error in terms of total greenhouse effect and are ignored by models.
Carbon Dioxide.
the two major gases that cause greenhouse gases are methane and carbon dioxideco2, methene, evaporates
Carbon dioxide is the major greenhouse gas, though methane and other gases are also important.
Carbon dioxide is emitted by burning fossil fuels (coal, oil and natural gas).Methane is emitted by bad farming practices in cattle and rice farming.
It not being certain of what amount or percentage is considered a "major" or "minor" gas, I have chosen to give the list of known gases in significant quantities: Hydrogen gas- 83% Helium gas- 15% Methane gas- 2%
When we speak of global warming, we usually mean the recent increase in average global temperatures. The two gases considered to be the major contributors to this effect are carbon dioxide and methane.
Methane. It causes half of global warming and most methane gases come from cow farts.
Hydrogen, helium, methane
methane, nitrogen ,and carbon monoxide
carbon dioxide (CO2)methane (CH4)CFCs (chlorofluorocarbons)water vapor (this is a natural greenhouse gas that we cannot control)Another Answer:To understand the greenhouse effect though, we need to know the actual order of these gases:1. Water vapor produces most of the greenhouse effect (over 80%). When the IPCC models look at the predicted warming they include increases in water vapor to produce the warming trend they predict.2. Next in line is CO2. This makes up 0.04%. Man is a minor contributor (about 6%) of this gas.3. Third line line is Methane. Man is a contributor here as well. In fact man makes up about half of this gas. The total warming factor attributed to Methane is well under 1% of the whole issue though.4. All other gases are considered too minor to be a factor. In fact CFC's are blamed for reducing ozone which has, in turn, caused the Antarctic to cool. The values f these minor gases are below the threshold of error in terms of total greenhouse effect and are ignored by models.
Methane, nitrogen and carbon monoxide :D
At present man-made greenhouse gases, carbon dioxide (CO2) and methane, are adding to the greenhouse effect. The natural carbon cycle is unable to cope with the extra CO2 which remains in the atmosphere gathering heat, and causing global warming. Less than 1% of the gases in Earth's atmosphere are called greenhouse gases. Even though they are not very abundant, these greenhouse gases have a major effect. Carbon dioxide (CO2), water vapor (H2O), methane (CH4), nitrous oxide (N2O), and a few other gases are greenhouse gases. They all are molecules composed of three or more atoms, bound loosely enough together to be able to vibrate when they absorb heat. Eventually, the vibrating molecule will emit the radiation again, and it will likely be absorbed by yet another greenhouse gas molecule. This process is called the greenhouse effect and keeps heat near the Earth's surface. All of the green house gases that are mentioned in the above answer are not necessarily man made. They are all natural gases in our environment. The jury is still out on whether we make enough to cause severe climate change as is claimed.