global warming, there is no doubt something is happening BUT?

Question

i just read a nasa report that shows the sun over the last several years is getting hotter and is growing in size,, could this be a factor

Answer 1

It's most likely a factor, as we see evidence of it not only here on Earth, but in the polar caps of Mars. They seem to be about 10% smaller now than 30 years ago.

The sun's output can vary by quite a bit, and over the last 100 years or so, its on an upswing as far as energy output goes. (Some estimates are as much as 5%).

Answer 2

Although the Sun may be getting hotter (it's temperature does oscillate over its 22-year cycle -- two times 11) the change is not enough to explain the rate at which global warming is presently proceeding.

I remember people not being able to even begin to believe some of the outlandish predictions of a few decades ago. Now it looks like even these predictions were way too conservative.


Global Warming is proceeding even faster than predicted by the pessimists of two decades ago. This is much faster than can be explained by the Sun.

Plus the Earth is presently moving away from the Sun (this is a normal oscillation in our so-called 'mean' orbiting distance -- it is caused by gravitational perturbations of the other planets, especially Jupiter). This is not to be confused with the difference, every year, between perihelion (closest to the Sun in January) and aphelion. I'm talking about the 'mean' orbital distance.


The rate of 300 km per year may not sound like much but the rate of heat we get from the Sun diminishes as the square of the distance. This probably offsets most, if not all, of the Sun's present 'overheating'.

Answer 3

Yes this could be possible. However, Global Warming is a proven fact and like within the next 100 years we might never see snow again. I know that sounds highly unlikely but I watched the documentary that Al Gore host and it was a pretty intriguing video. And Yes the sun can get bigger too.

Answer 4

You read wrong. Or maybe just misunderstood what you read. The Sun is growing and brightening by about 1% per 100,000,000 years, but that is way too slow to account for the warming of the last 100 years. The Sun does go through cycles of more and less energy output every 11 years, but it doesn't go up and up, it goes up and down again, every 11 years. And it only goes up and down by about 0.1%

Answer 5

I believe there are many factors involved in GW and the entire solar system seems to be going thru this phase.

Although I don't think humans are the cause I do think we add to the problem significantly. In other words it's going to happen no matter what and the only thing we can do is to minimize the effects by reducing greenhouse gasses.

Answer 6

Yes, but the amount of variance by which it can affect climate is statistically miniscule. The composition of atmospheric gasses are the greatest factor in regulating our planet's climate.

Answer 7

yes, the earth has gone thru cycles evere few 100,000 years