Want this question answered?
The earth's overall temperature with greenhouse gases is 76442 degrees F.
If the amount of greenhouse gases were reduced, then the temperature of the earth would cool.
Of course, greenhouse gases keep the Earth from being one large popsicle. The newest studies of the atmosphere indicate that the atmosphere is pretty stable, now. The reason is that nearly all of the greenhouse gases are water vapor mostly evaporated from the oceans.
The greenhouse gases reflect to the Earth the infrared radiation.
Greenhouse gases readily allow the sun's warmth to reach the surface of the earth. The earth then warms up and begins to radiate heat at longer wavelengths that are blocked by greenhouse gases. A certain amount of greenhouse gases is essential for life on earth as we know it. Without these gases, the world would be far colder than it is now. But the recent increases in concentrations of greenhouse gases are beginning to raise the world's temperature towards unsustainable levels.
Greenhouse gases help keep the earth's temperature at a comfortable level suitable for human existence. When we increase the atmospheric concentration of greenhouse gases above their natural level, this leads to global warming, in other words higher average temperatures across the globe.
Climate scientists estimate that the average temperature on Earth would be colder by approximately 30 degrees Celsius (54 degrees Fahrenheit). With our existing mix of gases in the atmosphere the average temperature on Earth is about 13C. The Earth's temperature without greenhouse gases would be -17C. There would be no life on Earth
Green house gases can cause great pollution to the atmoshprere and that leads to global warming and that can make life on earth extremely hard.
When greenhouse gases like carbon dioxide increase in the atmosphere then the temperature rises. Greenhouse gases capture heat rising from the surface of the earth and prevent it escaping to space.
CFC's (chlorofluorocarbons) are greenhouse gases. Greenhouse gases hinder the Earth's release of heat. Heat then, is trapped in Earth - increasing the Earth's temperature. Therefore, it contributes to global warming.
While the specifics of this are controversial, the generally held beliefs are that greenhouse gases cause air temperature to rise. The primary greenhouse gases in earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide and ozone. For an extreme view of how greenhouse gases can affect temperature, do some research on Venus where greenhouse gases and the proximity to the sun have turned the planet into a furnace
The air will turn warmer, because if greenhouse gases increase (which they are), less heat energy will be able to leave Earth, so the temperature rises.