A wider perspective
"New sensors in rural areas won't help much "
They won't be perfect, and will only cover the US (for a start) but they will help a LOT. I have seen some pics of the new CRN sites, and they are primo. They are all are kept well away from nearby heat sinks and have very consistent, clean micro-environments. With triple-redundant instrumentation and (joy of joys), no humans collecting and recording the data--all done automatically. They are correctly dispersed, so no more grossly artificial gridding procedures. No TOBS issues, either. No ridiculous, arcane adjustment procedures. All data to be raw.
And the new system will be run in tandem with the old for some time, so a comparison of methods can be made.
"Amazingly, climate change deniers, these self appointed "experts" can interpret data
better than the top scientists in the particular field."
Mmm. Some of them, yes.
It was a statistician, not a climatologist, that utterly demolished the hockey stick. When Dr. Mann defended it, one of his opening comments was, I am not a statistician," and he said it with pride. It was a meteorologist, not a climatologist who discovered the ubiquitous and sever nature of weather station microsite violations.
But climate study has a strong interdisciplinary aspect which straight the climatology/earth science side does not address. It includes, physics, chemistry, biology, geology, statistics, archeology, astronomy, engineering, and even history/literature. Not unlike detective work. Unfortunately, many climatologists seem to resent the "intrusion" as much as the old-style detectives (at first) resented the CSI guys. Time to get it all together!
"Deniers, try and think of someone other than yourself and your personal finances, like the future of our race!"
Yes, think. THINK. We demographers are doing just that. There is another side you may not have considered sufficiently.
If trillions of dollars in wealth is to be expended (or, worse, never to be created), and an entire generation in the third and fourth world (India, China, Africa, etc.) are to be denied affluence accepted as second-nature by we in the west, there had better be a darn good reason for it.
It is often said, "Take strong measures, they cost nothing and may save us." They do NOT cost nothing. They come at a very heavy cost in misery and death. There had better be strong scientific collateral that such sacrifices are necessary.
It occurs to me that in terms of economics, technology, and demographics, we cannot "dodge" this crisis (if it IS a crisis). But we can "outrun" it by producing as much wealth and tech as fast as the free market can.
"I think there's enough evidence that there's some global warming, and we can see that in the reduction of the polar icecaps. Now, I wonder if the source is human, why exactly the same amount of reduction can be seen in the other pair of icecaps we can measure, those of mars."
Mars orbit may be undergoing eccentricity. So we must be cautious in out conclusions.
But consider that The Atlantic Multidecadal Oscillation, the North Atlantic Oscillation, and the Arctic Oscillation are ALL at maximum warm phase of their cycle. And until the end of last year the Pacific Decadal Oscillation was in a warm phase (since c. 1977).
The Atlantic worm will turn.
(Not to mention that solar cycle 24 is the very model of a modern major minimum.)