Something to think about......?

Question

Based on a question regarding Magnetic heating/global warming from a guy yesterday......Since the Sun is a very large Generator producing very large magnetic fields and the Earth is a very good conductor (Lenz Law: " Any conductor crossing a magnetic field will induce Eddy currents within itself heating it up" ) and it has been proven that not only the Earth is heating up (cyclic events) but the rest of the planets in the Solar system as well..(Only by a few degrees)....then Global warming is not caused by CO2 emmissions but maybe by this Phenonema .....Magnetic radiation from the Sun keeps the internal core of the planets in the Solar system going and going..( "By Induction Heating")....sorry Al !!!

Answer 1

Cute idea.

Without having gone through the calculation, I'm not able to give a definitive answer, but my intuition tells me that this is not likely. The sun's self-made magnetic field may be large near the sun, but it's dwarfed on earth by the earth's own intrinsic field. Further, in order for Lenz' law to have an effect, the magnetic field must be time-varying in the reference frame of the conductor (and the sun's field probably doesn't change much on global scales). Finally, even if there were enough time-varying field, the majority temperature gain would be where the earth's conductivity were highest, which is probably in the mantle and the core, well within the earth's crust, and not in the atmosphere where the temperature change is observed.

You're more likely to get an effect, I think, from heightened solar activity. Several scientists have reported a strong correlation between global temperature increase and increases in solar activity over tha past 1100 years. Exactly how this activity would manifest as global warming is less certain. Direct heating is probably insufficient to account for the temperature change. However, light and/or solar wind are known to influence the atmospheric chemistry that's intimately tied to climate change, and it might be as simple (if you can use that word here) as more light and more (or faster) solar wind having a more pronounced effect on that chemistry.

Answer 2

Electromagnetic Induction Heating would explain the subsurface temperature of the earth increasing a degree or so, based on more magnetic field energy from the sun. After all the earth's core is made of iron which rotates.

However, global warming is not co-dependent upon the sun's magnetic field, but its light energy being trapped in the atmosphere and being converted to heat, rather than being reflected back out into space.

With the light energy being trapped, the surface temperature and the temperature of the atmosphere increase, regardless of the subsurface temperatures.

Answer 3

The magnetic force decreases with the square of the distance...

We are, on average, 148 million kilometres from the sun, which is 1.48 x 10^11 metres from the sun.

The magnetic force on the earth, due to the sun, is approx 1/(2 x 10^22) whatever it is at the sun...

I don't think magnetic field related heat induction is heating the atmosphere, or driving the orbits of the planets!... sorry!, but an interesting question!

Answer 4

Check your facts. I think you have a lot of them wrong. But since the earth's orbit is only slightly elliptical, it doesn't do much crossing of the sun's magnetic field. In any case, that would be an extremely small effect compared to the direct electromagnetic radiation as light.

Answer 5

Quite possible....

Something else to consider: Al Gore shows graphs which say that when Carbon Dioxide was high, temperatures were higher... all good and well, and probably true, but that doesn't mean that High CO2 caused high temps... it could easily be the reverse: high temperatures could have caused high CO2 levels. The graphs just show two measurements that have a correlation (when one is up, so is the other, and when one is down, so is the other). The science is not conclusive either way.

Answer 6

Funny how that didn't work in the ice ages...

It could be possible, but the relationship between the increase in temperature rise and the industrial revolution seems a more direct and simple answer. Usually the simplest is the most likely correct.

Answer 7

Ok then, do the CO2 emissions accelerate the process? Are we talking about direct displacement due to kinetic influx? What is the constant then if your hypothesis is correct? Is the universe constantly changing with differences in direction daily? Sounds like a black hole building speed creating friction,huh?? (LOL)

Good one....