Global temperatures are heading downward, and fast

wattsupwiththat.com ^ | 6/21/2016 | Anthony Watts

[Alas Babylon!]

And they’re still doubling-down on it:

http://www.climatecentral.org/gallery/graphics/2016-is-blowing-away-global-heat-records

[wastoute]

The thing that got me started thinking about all this was feeling the direct gain when I walk outside onto the deck. I can see why folks think all heat comes from the sun but it seems to me it ain’t so. So I started wondering just what the percentage is and it seemed there was evidence that the fraction coming from the core may be considerable. If that is the case it even further diminishes the claims of AGW.

[bert]

well, consider this

in most of the USA, if you enter a cave or go underground, the place is cool or in the winter, warm. Here the temp is a constant 55 F. it turns out that year in year out, 55 F is that average temp.

We do not have calculations about the heat attributable to the sun and to the earth core.

[wastoute]

Oh, I know. I worked in mines and was a spelunker in my 20s.

[rktman]

Leni’s dream lives on. Keep telling the same lie and POOF! It’s the truth. And there are lots of people that are buying it.

[palmer]

Well there definitely is greenhouse effect from CO2 and the line-by-line models show more energy reflected back as the CO2 increases. The problem with those models is they model just one small column in the atmosphere to see what happens with more CO2, but the same amount of sun, clouds, other weather like updrafts, etc. So while those simple models say there will be warming under more CO2, the effects are unknown. Before the current hysteria, the papers from the 70's show the overall effect between 0.5 and 2C. So not only not a big deal, but a definite benefit.

As for mankind's CO2, there is either a very strange coincidence of natural increases from the biosphere and volanoes or there is the manmade explanation of the rise from 280 to 400.

There are some who say the rise came from warming. That is partly correct, we had natural warming after the end of the Little Ice Age and that warming can explain 10ppm of that rise. But it can't explain the whole rise. There are also claims that CO2 was higher in recent centuries. But those old measurements invariably are from morning with CO2 off-gased from vegetation overnight, or from cities or both. The most reliable estimates come from Greenland ice cores which have annual resolution for the past 20k years. They show the current rise to be fairly unique in that interval. But, (there's always a but) other measurements show the current rise to not be so unique, with a few natural spurts reaching about 1/2 the current observed CO2 spurt.

So bottom line there is probably some warming from rising CO2, the rising CO2 is almost certainly manmade and that's about it for the science. Most everything else I read is propaganda. For example talking about weather as if the minor amount of global warimng could change the weather (even if that was possible it would be negative feedback). Lots of propaganda about melting icecaps but the fact is that it is too cold to snow in Antarctica and not warming, but if it did, it would result in more snow and ice accumulation.

[wastoute]

With the cumulative IR absorption of atmosphere of all gasses to include water vapor, methane, and CO2 the CO2 portion is relatively minor and the portion of CO2 that is man made minuscule.

[RainMan]

LOL ... low on the list of worries ... and not sure how it relates to Global Warming either. I am significantly more concerned with the Juan de Fuca fault blowing a gasket. http://www.freerepublic.com/focus/f-news/3442314/posts
See #17