So what are the observable facts about CO2 and its warming properties?

Sahara, Earth greening link

The many reasons CO2 is not a driver of the climate link

"Precision research by physicists William Happer and Willem van Wijngaarden has determined that the current levels of atmospheric carbon dioxide and water vapor are “saturated.” In radiation physics that means adding more CO2 or water molecules will bring modest warming that will benefit plant growth, and thus all life on Earth. More CO2 and H2O will not cause dangerous warming." link

CO2 not the bogeyman. William Happer link

China’s annual carbon dioxide emissions nearly tripled between 2000 and 2019, and now account for just under 30% of total global emissions which makes the country the largest emitter by far. The US, the second largest emitter, accounts for 14.5% of global emissions while India, the third largest, contributes 7.3%

Shale gas same CO2 as coal link

Why there is no climate emergency the truth about CO2 link

No link CO2 and temp in 97% of past 425 million years link

Over 100 scientific articles CO2 miniscule effect on temperatures link

Third world cause CO2 emissions to continue to increase link

Levels as hish as 500ppm, Holocene Greenland ice cores link

CO2 and temperature chart, geological record, 3,000 ppm ice age link

When too little CO2 nearly doomed humanity link

Equilibrium under 500 ppm link

Vostok chart link

Greenland, Holocene, no link temps and CO2 levels link

Global emissions chart link

460 million years ago, during the Ordovacian Period, CO2 levels were 4,400ppm and temperatures were about the same as today's CO2 level of 410ppm

CO2 no role during last deglaciation or in the past 10,000 years. For the last 8,000 years ocean temperatures, ocean surface temperatures, sea levels fell as CO2 concentrations rose. link

US emissions irrelevant as third world and china increase emissions, chart link

The last time temperatures and CO2 were this low was 300 million years ago during the Permocarboniferous Period.

Why CO2 is a minor player in the global climate link

Currently all living things on Earth produce 440 billion tonnes of CO₂ each year, or 13 times the amount from fossil-fuel emissions. When the activists make their apocalyptic pronouncements, the primary goal is not to save plants, humans or animals, but to use “climate change” as justification for centralizing power into the hands of a select few.

Main tenet of anthorpological global warming has been falsified by observation, there has been no detectable global-scale human influence on the Earth’s hydrological cycle. chart link link

85 scientific papers CO2 has miniscule effect on the climate  link

USA reduced CO2 emissions more than any other country link

CO2 by nation link

US power sector CO2 emissions have declined 28% since 2005 link

US leads the globe in CO2 reduction link

USA reduced CO2 emissions 25% since 1990, now 16th largest emissions per capita , 20.6 tons in 2000 to 15.65 in 2016 link

CO2 emissions under trump lowest per capita in 7 decades link

The Dinosaur era had CO2 levels 5 times greater than today link

Climate models have not been accurate link

There is no observable relationship between CO2 levels and global temperatures in the geological record link

logarithmic  link link link link link

CO2's warming properties are logarithmic, meaning the more there is the less additional warming it can cause. link

logarithmic effect (watts) link

 THERE IS NO CATASTROPHIC MAN-MADE GLOBAL WARMING CRISIS:

The Catastrophic Man-made Global Warming hypothesis is falsifiable, and has been falsified:

1. By the ~32-year global cooling period from ~1945 to ~1977, even as fossil fuel combustion and atmospheric CO2 strongly increased;
2. By “The Pause”, when temperature did not significantly increase for about two decades, despite increasing atmospheric CO2 concentrations;
3. By the absence of runaway global warming over geologic time, despite much higher CO2 concentrations than at present;
4. A hypothetical doubling of CO2 from the so-called “pre-industrial” level of approx. 280ppm to 560ppm would cause AT MOST about 1C of global warming (Christy and McNider 2017, Lewis and Curry 2018) , such that any credible humanmade warming predictions would NOT be dangerous, but would be net-beneficial for humanity and the environment.
5. The only conclusive evidence is that increasing atmospheric CO2 is hugely beneficial for the environment and humanity, due to greatly increasing plant and crop yields.

In conclusion, there is no credible evidence of dangerous man-made global warming driven by increasing atmospheric CO2, and ample evidence to the contrary.

For the last ~8,000 years, ocean temperatures, surface temperatures, and sea levels fell as CO2 concentrations rose.

, 460 million years ago, during the Ordovician Period, CO2 concentrations were 4,400 ppm, and temperatures then were about the same as they are today.

For example, 460 million years ago, during the Ordovician Period, CO2 concentrations were 4,400 ppm, and temperatures then were about the same as they are today.

WIll Happer: 

uncertainlty of CO2 sensitivity link

A carbon tax would have no impact on the climate link

Globally 20% CO2 from transportation, link by country link

For CO2 to cause dangerous warming it must cause an increase in atmospheric humidity. Observation shows this is not happening. link

Why solar activity drives the climate and CO2 is meaningless link

Climate sensitivity revised downward link

Climate sensitivity link

The amount of warming caused by rising CO2 is referred to as climate sensitivity. The predicted warming is based on models which have not been accurate when compared to observation. The predicted warming from rising CO2 is constantly revised....downward. link

11 false eco catastophes link

CO2 levels much higher in the past 550 million years chart link

CO2 residence time

CO2 does not remain in the atmosphere for hundreds of years c14 link

CO2 residence time link

Ten myths link

Safety zone link

NASA video absorption and emissions global co2 link

Atmosphere can not heat the oceans link

US Navy Submarines...“Data collected on nine nuclear-powered ballistic missile submarines indicate an average CO2 concentration of 3,500 ppm with a range of 0-10,600 ppm, and data collected on 10 nuclear-powered attack submarines indicate an average CO2concentration of 4,100 ppm with a range of 300-11,300 ppm.

Snowball Earth, If CO2 were removed, the change in energy transfer would be 3.3 W/m^2 which is 2.75% of the total. That change corresponds to a total change to the GHE of 0.9 °C which I will consider 1 °C as the ozone transfer really takes place in the stratosphere.

link

The past can tell us a lot about the present and future of the climate. CO2 levels were as much as 17 times greater than today in 85% of the past 600 million years. There were three ice periods with more CO2, one had fifteen times more, one five. CO2 levels in the bio diverse and productive age of the dinosaurs were 500% higher than today. CO2 has NEVER been observed as an important driver of the climate in the geological record. Global temperatures were mostly warmer than today in the prior 8,000 years of the Holocene. Temperaturs in the Egyptian, Roman, Medieval Periods were all as warm, or warmer than today. These periods are referred to as optimums, life thrived due to good harvests and political stability. It is in cold periods, such as the Dark Ages, when life is brutally harsh and short. There is scientific consensus that rising CO2, by itself, can not cause dangerous warming. CO2's warming properties are logarithmic, meaning the more there is the less additional warming it can cause. For there to be dangerous warming from rising CO2 other things must also happen, called positive feedbacks. Such feedbacks account for about 75% of the predicted warming. CO2 comprises only about 3% of greenhouse gasses, water vapor 95%. Water vapor is the most important greenhouse gas by far. Some predict rising CO2 will cause some warming which will cause more water vapor, and then more warming....spirling out of control. Well, this has never happened in the past and when CO2 levels were much higher. Predictions are that we would see warming happen first in the upper atmosphere. So what are observations showing, quite the opposite, the upper atmosphere is drying out and cooling, the opposite of what was predicted. The climate alarm is solely based on computer models that either do not include known natural forces that impact the climate, such as clouds, ocean cycles, solar activity, Earths gravitational and magenetic field, location within the galazy etc, because these forces are not fully understood. None of the climate models have accurately predicted what temperatures would do, nor do they explain temperatures in the past. There are benefits to rising CO2, plants grow more quickly and with greater health, there is record crop production, the Earth is 8% greener than in 1980 according to NASA, plant water management also improves with rising CO2. Needing less water, there is a huge greening in arid areas, and there is less drought. What is not to like?

Ordovician period 450 million years ago CO2 levels 800% higher than today,

Without CO2 Earth would not become a snowball link

The last time that BOTHaverage temperatures and CO2 levels were as LOW as they have been in the Pleistocene ice age was 300 MILLION years ago during another ice age, the Permo-Carboniferous.

That simply is not true, remove the CO2 and the Earth becomes a snowball. CO2 makes up only 3.5% of the greenhouse gases.