What causes global warming??

Answer 1

Natural phenomenon such as Solar flares, Sun spots, volcanic activity, and various changes beneath the oceans, and the Earth's crust... and granted that man made pollution is a global problem, it is not causing the slight increase regarding global temperatures, thus the pollution problems can be greatly reduced so long as international efforts are applied... therefore there is nothing man can do in order to "Cool the Earth" as some would have you believe...

Answer 2

Certain gases in our atmosphere are opaque to infrared radiation. The most common are carbon dioxide, water vapor, methane and other organic molecules.
When sunlight stikes the surface of the planet, it is absorbed to some degree and it warms it. This warmth is light being re-emitted as infrared. When infrared hits a greenhouse gas, it is rapped as heat energy.
We know that the greenhouse effect is real. Without it, the Earth's surface would be frozen solid. Some greenhouse effect might be caused by human activity. Science doesn't know how much of this is man made. But, just in America, from our automobiles and power plants, we put 4.0Billion tons of CO2 into the air annually.

Answer 3

At present Earth appears to be facing a rapid warming, which most scientists believe results, at least in part, from human activities. The chief cause of this warming is thought to be the burning of fossil fuels, such as coal, oil, and natural gas, which releases into the atmosphere carbon dioxide and other substances known as greenhouse gases. As the atmosphere becomes richer in these gases, it becomes a better insulator, retaining more of the heat provided to the planet by the Sun.

Answer 4

As the sun's rays reflect off of the earth, they lose energy and drop into the infrared region of the electromagnetic spectrum.

Molecules with polar bonds (in this case, water vapor, carbon dioxide, methane) absorb infrared radiation at varying wavelengths, which cause vibrations along the bonds. The vast majority of the atmosphere (nitrogen, oxygen, argon) does not, as they are either monatomic or diatomic non-polar molecules. As the concentration of the IR-susceptible molecules increases, the more heat they absorb, not allowing it to escape into space.

Were it not for this effect, the average temperature of the Earth would be about -60 degrees Fahrenheit.

Answer 5

Sunlight shines on the surface of the earth and is radiated outward in infrared. Greenhouse gases reflect the infrared back, warming the surface. (The atmosphere, being the reflector, does not get hot despite what some climate-change deniers would have you believe; it's a surface warming effect.)

Answer 6

Greenhouse gases in the atmosphere (H2O, Methane, Water Vapor, and CO2) trap heat from the sun reemitted as infrared radiation, which in turn warms the Earth, similar to a greenhouse.

Answer 7

Industrial exhausts ,emissions from vehicles , from refrigirator,cutting down trees destroying forests leading to less rain , and pumping out underground water everything leads to Global warming ,

Pretty a Big scare in the future to come for mankind.

Answer 8

Global warming is not proven to be true. Global weather changes are caused by wear and tear on the earth due to spinning. Try studying Milankovitch cycles and their effect on weather. Global warming to my knowledge is still an unproven theory. Milankovitch cycles have more pull they are models.

Answer 9

international warming turns into international cooling because of fact once you have invested a sizable volume of skill faking, forging, manipulating archives and advertising the fake theory that CO2 motives a international temperature upward thrust however the suggestions starts to tutor a cooling vogue then you definately pull the previous switcheroo and with somewhat of luck desire everybody is so ideas broken via the genuine pollution, mercury, lead, fluoride and Fox information that their delicate minds may even settle for that its conceivable. the certainty is unquestionably grew to become into that there grew to become into no genuine guy-made international warming first of all, and any average warming grew to become into thoroughly organic. international temperature is pushed specially via image voltaic activity, and image voltaic flare activity is now at a low so the planet is incredibly at the instant cooling after an ever so average upward thrust. So the respond is..... it won't have the ability to. One would not reason the different the temperature in simple terms fluctuates finding on image voltaic activity.

Answer 10

Excessive amounts of carbon dioxide in the atmosphere, traps in harmful uv rays which increase the temperature of the earth.