Global warming

[pbrower2a]

(04-04-2017, 11:15 PM)Ragnarök_62 Wrote:

(04-04-2017, 10:28 PM)Eric the Green Wrote:

(04-04-2017, 06:07 PM)X_4AD_84 Wrote:

(04-04-2017, 02:09 PM)Eric the Green Wrote:

(04-04-2017, 01:58 PM)X_4AD_84 Wrote: Eric, where do you think that waste heat ends up?

Have you ever been on the roof top of a large building and stood near the cooling towers of the AC system?

Sorry; once again that's just your opinion.

It's physics. Learn some.

Show me some physicists who have published research that says heat from devices contributes to global warming. I haven't seen one article, post or website that says this, ever.

Speaking of AC systems though, it is quite established that more efficient heating and cooling systems and other building energy conservation methods save energy. That contributes to climate change reduction.

Uh, Eric, heat, AKA infrared energy is just another form of electromagnetic radiation. Any number of processes generates these waves/photons[light]. You won't find much on anthropogenic infrared electromagnetic waves/photons because they in the larger scheme of things don't come close to CO2. CO2 does its dirty deeds by trapping infrared "light" and preventing it from escaping to outer space. So... Solar and anthropogenic infrared light just bounces off CO2 molecules and gets stuck. I'll also agree with you that conservation is an excellent way to reduce CO2 emissions.  Also, did ya know that water vapor,CFC's, and methane are also greenhouse gases?

Here's an example of technology that works to dissipate infrared light from structures : http://www.livescience.com/57902-magic-f...dings.html

So, there's your URL, man.

 Water vapor is arguably the most important of greenhouse gases. A warming Earth implies more evaporation from the 70% of the Earth's surface and more water vapor. Cold air does not hold much water vapor, but warm air can. Here's what the American Chemical Society has to say:

... (W)ater vapor is the largest contributor to the Earth’s greenhouse effect. On average, it probably accounts for about 60% of the warming effect. However, water vapor does not control the Earth’s temperature, but is instead controlled by the temperature. This is because the temperature of the surrounding atmosphere limits the maximum amount of water vapor the atmosphere can contain. If a volume of air contains its maximum amount of water vapor and the temperature is decreased, some of the water vapor will condense to form liquid water. This is why clouds form as warm air containing water vapor rises and cools at higher altitudes where the water condenses to the tiny droplets that make up clouds.

The greenhouse effect that has maintained the Earth’s temperature at a level warm enough for human civilization to develop over the past several millennia is controlled by non-condensable gases, mainly carbon dioxide, CO2, with smaller contributions from methane, CH4, nitrous oxide, N2O, and ozone, O3. Since the middle of the 20th century, small amounts of man-made gases, mostly chlorine- and fluorine-containing solvents and refrigerants, have been added to the mix. Because these gases are not condensable at atmospheric temperatures and pressures, the atmosphere can pack in much more of these gases . Thus, CO2 (as well as CH4, N2O, and O3) has been building up in the atmosphere since the Industrial Revolution when we began burning large amounts of fossil fuel.

If there had been no increase in the amounts of non-condensable greenhouse gases, the amount of water vapor in the atmosphere would not have changed with all other variables remaining the same. The addition of the non-condensable gases causes the temperature to increase and this leads to an increase in water vapor that further increases the temperature. This is an example of a positive feedback effect. The warming due to increasing non-condensable gases causes more water vapor to enter the atmosphere, which adds to the effect of the non-condensables.

There is also a possibility that adding more water vapor to the atmosphere could produce a negative feedback effect. This could happen if more water vapor leads to more cloud formation. Clouds reflect sunlight and reduce the amount of energy that reaches the Earth’s surface to warm it. If the amount of solar warming decreases, then the temperature of the Earth would decrease. In that case, the effect of adding more water vapor would be cooling rather than warming. But cloud cover does mean more condensed water in the atmosphere, making for a stronger greenhouse effect than non-condensed water vapor alone – it is warmer on a cloudy winter day than on a clear one. Thus the possible positive and negative feedbacks associated with increased water vapor and cloud formation can cancel one another out and complicate matters. The actual balance between them is an active area of climate science research.

https://www.acs.org/content/acs/en/clima...e-co2.html

I'll take science as the arbiter of reality over the hack writings of propagandists and activists any day.