What causes Global Warming?

Answer 1

Global Warming



The cause is oceans heating, not greenhouse gases.
All ice ages begin exactly as the present warming of the globe, and the process has nothing to do with carbon dioxide.
Everything in the atmosphere is a greenhouse gas including water vapor which is a hundred times more prevalent than carbon dioxide. People are given the false impression that it's all about CO2.
The atmosphere is only 0.04% carbon dioxide, of which only 3% stems from human activity. Therefore, human activity cannot create global warming stemming from carbon dioxide.
The amount of CO2 presently in the air absorbs nearly all available radiation at its peaks of 2.7, 4.3 and 15 µM; so more CO2 cannot absorb more radiation. details
The oceans regulate CO2 in the atmosphere to the minutest detail, as indicated by an El Nino in the Pacific Ocean, which causes CO2 measurements in the air to increase, and then they renormalize when the El Nino disappears. External Link
The oceans are heating up, and the atmosphere is not. The result is polar ice caps melting and increased rainfall. This points to a hot spot in the earth's core heating the oceans, not human activity.

OR

Global warming is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades.

The Earth's average near-surface atmospheric temperature rose 0.6 ± 0.2 °Celsius (1.1 ± 0.4 °Fahrenheit) in the 20th century. The prevailing scientific opinion on climate change is that "most of the warming observed over the last 50 years is attributable to human activities".

The increased amounts of carbon dioxide (CO2) and other greenhouse gases (GHGs) are the primary causes of the human-induced component of warming. They are released by the burning of fossil fuels, land clearing and agriculture, etc. and lead to an increase in the greenhouse effect. The first speculation that a greenhouse effect might occur was by the chemist Arrhenius in 1897, although it did not become a topic of popular debate until some 90 years later.

The measure of the response to increased GHGs, and other anthropogenic and natural climate forcings is climate sensitivity. It is found by observational and model studies. This sensitivity is usually expressed in terms of the temperature response expected from a doubling of CO2 in the atmosphere. The current literature estimates sensitivity in the range 1.5–4.5 °C (2.7–8.1 °F). Models referenced by the Intergovernmental Panel on Climate Change (IPCC) project that global temperatures may increase by between 1.4 and 5.8 °C (2.5 to 10.5 °F) between 1990 and 2100. The uncertainty in this range results from both the difficulty of estimating the volume of future greenhouse gas emissions and uncertainty about climate sensitivity.

An increase in global temperatures can in turn cause other changes, including a rising sea level and changes in the amount and pattern of precipitation. These changes may increase the frequency and intensity of extreme weather events, such as floods, droughts, heat waves, hurricanes, and tornados. Other consequences include higher or lower agricultural yields, glacier retreat, reduced summer streamflows, species extinctions and increases in the ranges of disease vectors. Warming is expected to affect the number and magnitude of these events; however, it is difficult to connect particular events to global warming. Although most studies focus on the period up to 2100, warming (and sea level rise due to thermal expansion) is expected to continue past then, since CO2 has an estimated 50 to 200 year long average atmospheric lifetime.

Only a small minority of climate scientists discount the role that humanity's actions have played in recent warming. However, the uncertainty is more significant regarding how much climate change should be expected in the future, and there is a hotly contested political and public debate over what, if anything, should be done to reduce or reverse future warming, and how to deal with the predicted consequences.

The term 'global warming' is a specific case of the more general term 'climate change' (which can also refer to 'global cooling', such as occurs during ice ages). In principle, 'global warming' is neutral as to the causes, but in common usage, 'global warming' generally implies a human influence. However, the UNFCCC uses 'climate change' for human-caused change, and 'climate variability' for other changes. Some organizations use the term 'anthropogenic climate change' for human-induced changes.

Answer 2

Link below explains the Link between Mans activity & Global Warming.

Answer 3

international warming turns into international cooling because of the fact once you have invested a great quantity of potential faking, forging, manipulating records and advertising the fake perception that CO2 motives a international temperature upward thrust however the advice starts off to coach a cooling vogue then you definitely pull the previous switcheroo and with any luck desire all and sundry is so ideas broken by the genuine pollution, mercury, lead, fluoride and Fox information that their delicate minds may even settle for that its attainable. the fact is obviously became that there became no genuine guy-made international warming first of all, and any reasonable warming became thoroughly organic. international temperature is pushed especially by photograph voltaic interest, and photograph voltaic flare interest is now at a low so the planet is rather at present cooling after an ever so reasonable upward thrust. So the respond is..... it won't be able to. One does not reason the different the temperature merely fluctuates looking on photograph voltaic interest.

Answer 4

CFC - Chloro Fluro Carbon, let into atmosphere, by many industries, world over, eats up Ozone, the protector from, direct sun light rays. Ozone absorbs, mainly ultra- violet rays, from sun. This causes Global Warming.

Answer 5

Watch The Day After Tomorrow, its a good movie and its educational!

Answer 6

Al Gore!

Answer 7

Increased world temps .

Answer 8

cats are the main cause

Answer 9

humans

Answer 10

carbon dioxide..etc