Why are global mean temperatures so low?

Very good question. With more CO2 in the atmosphere and the passage of time, one would assume that temperatures must continue to rise due to additional greenhouse effect. However, as has been shown during the past 10 years this has not been the case. It strengthens the argument that perhaps we are looking at the wrong reasons for the recent warming. It leads us to believe that we should be looking for other causes, like solar influence and accept that CO2 is not the culprit.

If I understand the global warming theory, an increased greenhouse effect, from higher water vapor, CO2 or methane, we would expect temperatures to be rising, but not necessarily higher. Temperature reached would depend on how long that elevated greenhouse effect has been there and earlier temperatures.

We are definitely seeing some evidence of elevated rainfall, India, China, and even Iowa may bear witness to that. We can not say that it would ever be different with warmer oceans. Late in a warming period and into the start of a cooling period, as world wide cloud cover starts to increase, one should expect that rain might appear everywhere

Earlier in the warming period with reduced cloud cover we would have expected similar amounts of rain, but not as widely distributed.

You make an observation that may be right or wrong depending on how you normally use grammar.

"We have been experiencing warm PDO & MDO cycles and volcanic activity has been low this centuary (generally believed to cause cooling)."

As I understand volcanic activity, we usually see cooling as a cause of cooling, rather than low volcanic activity causing cooling. Low volcanic activity would be associated with warming unless the specific volcanic activity we do not have fails to release a lot of CO2. These convoluted double negatives always seem to mean the opposite of what we intend when they are read, and have less beneficial effect when not read.

So if co2 is a primarly climate driver as many believe, why is it so much cooler today with the same level of co2?

Geologic evidence and isotopes also show that sea level during this time was at least 15 to 25 m above modern levels

Can't answer your question, but wanted to say thank you for the information you left on my question. It seems to explain alot, not that I know much on this topic. I figured somehting had to be up, because I thought that water vapor, one of the "greenhouse gasses" would help stabalise the earth temperature and create less huricanes. I 'm sure I can't prove this......

But I will read the information that you gave me. I now have a better idea where to start looking for information and where to begin reading. So few people post informative sites like that.

Thank you very much.

Yes

Mainly from more pollution (air borne micro-particles) man made and natural.Short and quick; reflection back into space of sun energy (rays etc..) and the "Dimming of the Sun" adds to this lower global mean temp.

Go to PBS and check out the documentary of "The Dimming of the Sun" .

I HAVE NO FRIGGIN IDEA WHAT YOU ARE SAYING PUT IT IN ENGLISH PLEASE!!!!