It is interesting how all warming of Earth is within natural variability, what natural solar, ocean currents, and the like can cause.
That is not true. Atmospheric CO2 has increased 44% over the past 100 years, with the majority of that being in the past 50 years. Additionally that full 44% increase due to fossil fuel consumption. How do we know? Fundamental Geochemistry. Here's a few research papers demonstrating this.
Stuiver, M., Burk, R. L. and Quay, P. D. 1984. 13C/12C ratios and the transfer of biospheric carbon to the atmosphere. J. Geophys. Res. 89, 11,731-11,748.
Francey, R.J., Allison, C.E., Etheridge, D.M., Trudinger, C.M., Enting, I.G., Leuenberger, M., Langenfelds, R.L., Michel, E., Steele, L.P., 1999. A 1000-year high precision record of d13Cin atmospheric CO2. Tellus 51B, 170–193.
Quay, P.D., B. Tilbrook, C.S. Wong. Oceanic uptake of fossil fuel CO2: carbon-13 evidence. Science 256 (1992), 74-79
Not true. The physics of CO2 as a greenhouse gas is well established since the mid 1800's. Let's look at the fundamental physics.
Carbon dioxide (CO2), has a central carbon atom and two oxygen atoms attached. With CO2, there is a central carbon atom and two oxygen atoms attached and an electromagnetic field incorporated into them. This electromagnetic field gently locks the molecule into a specific configuration. That magnetic field also allows the atoms to wobble around a bit (vibrate) as the molecule is floating about in the atmosphere. When Infrared (IR) energy strikes this molecule the two oxygen atoms vibrate, which generates heat. This heat is emitted from the CO2 molecule; as it emits, more IR energy causes the molecule to vibrate and emit heat again and again in a continuous process. When there is more IR energy entering the earths atmosphere than leaves, the over all net activity is a "heat gain"; thus, warming land and sea surface temperatures.
CO2 has been hyped to extremism, and natural processes which has controlled Earths temperature has been tossed in the ditch.
From studying past climates (paleoclimates)
we understand the mechanisms (forcings) that effect climate and to what extent. Note my emphasis on the expression
we. I emphasize that, as my M.S. in Earth Science was concentrated in the area of Paleoclimatology. Subsequently, I spent almost 30 years as a research chemist (Geochemistry), in part, testing the effects of solar irradiation on specific molecules and polymer chains. I would gratefully appreciate well established fundamental chemistry and physics not being addressed as "hyped extremism".
Climate propaganda has always a negative and alarming measage.
I agree 100%. I think it is very sad that the fossil fuel industry and the politicians they support have engaged in it.