Satellite microwave energy million times too small to cause global warming
What the science says...
Climate Myth...
It's satellite microwave transmissions
Global Warming history completely coincides with the history of artificial satellites and the use of microwave frequencies from outer space. Satellite antennas transmit UHF and higher microwaves frequencies all over the planet. Sending oscillating microwaves from an antenna inside a vacuum through an electromagnetic field through a dielectric material, such as water, creates radio frequency heating at the molecular level (source: Global Warming and Microwaves).
According to UCS Active Satellite database, they know of 873 active satellites, for which those whose total power is known average around 3,200 Watts. The biggest was 18,000 Watts. To be generous, let us assume there are 1,000 satellites averaging 5,000 Watts. That yields 5 MegaWatts total. This is equivalent to about 5 big (but not biggest) windmills.
Suppose they were all orbiting about 6500km from the center of the Earth (i.e., Very Low Earth Orbits) and all the power was being radiated towards the Earth (it isn’t). The surface of a 6500km sphere is about 530 million square kilometres which means the incoming energy would be 5 Mega Watts / 530M km2 which is equivalent to ~ 1 Watts/km2 or 0.000001 Watts/m2.
In other words, the sum amount of energy being emitted towards the Earth from orbiting satellites is no more than 0.000001 Watt/m2. The IPCC AR4 (Figure SPM.2) gives total net anthropogenic forcing as 1.6 Watts/m2.
So, the energy required for satellites to cause global warming is off by a factor of around one million.
Last updated on 20 July 2010 by John Cook.
Here are some other things that belong in this thread 1 1.5 kW – tech: legal limit of power output of an amateur radio station in the United States 2 50 kW to 100 kW – tech: highest allowed ERP for an FM band radio station in the United States 3 10 MW – tech: highest ERP allowed for an UHF television station I did some maths and found this as reference LINK One thing I didn't do was add all the repeater stations and satalite links I just used the main stations which came to 27,190 x 10MW= 271GW of accumulative ERP (Effective radiated power) 4 Radars are also on my list to search ERP levels (weather,shiping and aircraft radars) and lets not forget space research 5 The mobile phone network is also a problem and needs to be callculated 6 The military will be the hardest to callculate no power restrictions when it comes to war, the one with the most power wins
I only started looking at "Global Warmage" for science & math interest 3 months ago. I linked here from a 2013-05 post about revised AST processing. Oh boy. They have absolutely no concept whatsoever of the orders of magitude difference between the vast energy delivered non-stop to Earth by the sun & the trivial bits shoved around on Earth surface. Signs are that this inability to grasp simple quantity concepts is endemic among the public at large.