It is often said that air is more sterile when it's cooler. With the combo of high temperature and increased humidity in places from this global warming, cell activity will increase. Cancer and other heat- and pollen-related diseases will increase.

Cancer cells rely more on glucose to grow, and ketogenic diets mostly offer a solution to that. If they get less energy to develop in a cold climate, that's obviously because the body knows not to share it enough for the cells to develop.

Nonetheless, when it comes to heat diseases, or things as such, we do get that radiation is washed off because of the humidity and rising sea levels. It certainly doesn't become the Irvin Redlener thing (far from it) - it's trading coldness for humidty, though, humidty we would get with the cold.

The issue with most climate alarmists is that they do not take into account the Earth's own giant clock of cycles. We are still part of the ice age period, known as the Pliocene-Quartenary glaciation. Whatever temperature gain we had is well within predictions, and is hardly in the process of acceleration.

The concern is control of air pollutants and CO2 emissions - which are ironically increased with forests, over grazing farms, though controlling transpiration rates to conserve humidty, and coolness in hot areas, and to increase heat activity in cold areas, and to conserve reservoirs by acting as blocks to evaporation, are equally important.

Air pollution mitigation entails preventing plastic from emitting methane and ethylene. That should help towards preventing acid rain, among other things.

We are not gonna save the planet; we are gonna save our own skins. Its temperatures don't matter much to the ecosystem as it's natural for it to proceed with its cycle. For the climate is always changing, whether it is warming up or freezing up.

That means regulating the Ozone hole to prevent blindness or partial blindness from extended exposure from radiation from the sun, among other things.

The refrigerator analogy:

It is often said that keeping foodstuff in refrigerators after contact with too much heat will only increase the bacteria getting into the fridge and multiplying. Now, suppose the global warming by a certain year is up by 0.2%.

Because of the exponential factor of the rate of growth of bacteria, their population will increase.

Hence, it affects all living beings, and it is easier for your flesh to rot at the slightest sign of a disease, easier for your cattle to gain infections. That is 'easier', but not 'much easier', if we were to study things on a case-by-case basis. Irrespective of the fact that humans are quite resourceful and can migrate or have technology to counter certain minor effects, or bigger effects, the fatality rate is not likely to compare with that linked to excess alcohol consumption or body radiation increase due to obesity.(1)

In terms of resourcefulness, we are getting there(2).

More energy and water means increase in forests. And that's to be found here...(3)

This warming increases the activity of marine life of plants above water, while decreasing it in the depths. The polyps disappear, corals evaporate and tsunamis can go on rampages. The excess heat is manifested in the form of cyclones. That is gleaned from the knowledge of increased surface area of water, hence, more evaporation, alongside the heat. Not much of a theory, other than it occurring on a global scale.

As it turns out, the ozone layer and co. is a major reflector of sunlight, but the pollution depletes it, with global warming ensuing as an effect of thermal expansion tendency of the atmosphere. Since this expansion cannot be achieved, the excess heat distributes itself around the globe, at the center of which the ozone layer is stronger.

If anything though, it's ironic that nuclear energy is not being used, because of hoax from the part of certain people.(4)

....

Okay, this is something here. Wikipedia load incoming:

Take the Cambrian Explosion and that thing basically happened with a peak of 4000 ppm for carbon dioxide reeled in (6), and 4400 ppm in the Ordovician Period (7). Got some calcium carbonate dudes thriving up. Compared to the Cryogenic Period, before that. (8)

Then add in the sauce, which is Tyrannosaurus Rex, coming out during the Maastrichtian age of the upper Cretaceous Period, from 68 to 66 million years ago, with the 1000 ppm of CO2. That's some awesome energy. Where the heck did he indeed get his non-vegetarian food? (9)

Average global temperatures during much of the Neoproterozoic Era (1 billion to 541 million years ago) were cooler (around 12 °C [54 °F]) than the average global temperatures (around 14 °C [57 °F]) of the present day, whereas the global temperature of Cambrian times averaged 22 °C (72 °F). (10)

Are we 4000 ppm CO2 yet? We are stuck at 390 ppm, just off 400,

The narrative has been stolen; if detected on Amazon, report the infringement.

Natural selection does not if it's 4000 ppm or 390 ppm, though we have a good brain now:

"The tectonic events involved in the breakup of Rodinia also modified the ocean basins, forcing their expansion and flooding portions of many continents. The melting of the Varanger glaciers during the Neoproterozoic also played a role in the flooding of continents. This episode represented one of the largest and most persistent rises in sea level of the Phanerozoic Eon. Though the extent of continental flooding varied, for most continents sea level reached its maximum by the middle and later parts of the Cambrian. This flooding, combined with the elevated Cambrian temperatures and changes in Earth’s geography, led to increased rates of erosion that altered ocean chemistry. The most-notable result was an increase in the oxygen content of seawater, which helped set the stage for the rise and later diversification of life—an event that has come to be known as the “Cambrian explosion.”" (11)

So, furries or not, the shot's not on some humans. Enjoy the animals if you will, but the animals got one or two things to say too. Like being allowed to grow. Resurfacing.

"Surface water temperatures were about 30 °C (86 °F) at the Equator year-round, but at the poles they were 14 °C (57 °F) in winter and 17 °C (63 °F) in summer. A temperature of 17 °C is suggested for the ocean bottom during the Albian Age, but it may have declined to 10 °C (50 °F) by the Maastrichtian." (12)

And Oxygen, 'coz some guy said it was important as an indicator of cooler temperatures.

Before that, though, there's one thing about oxygen and the size of animals - it works.

The full range of oxygen tensions likely to have characterized Neoproterozoic oceans can be found today, including oxygen-minimum zones (OMZs) where pO2 can be exceedingly low. Even where oxygen falls to 1–3% PAL, however, animals, mostly tiny and unmineralized, thrive. (13)

"Oxygen may not have lit the fuse for the Cambrian Explosion, but it might have supplied some fuel. Oxygen requirements reflect size, transport mechanisms within tissues, and metabolic demand, and the metazoans found in modern dysoxic waters (O2 present but in low amounts) tend to be tiny (11). The famous Ediacaran macrofossils may not reflect the earliest animals, but along with a number of forms with controversial affinities, they do record the oldest large animals capable of widespread preservation (15). Moreover, in modern dysoxic (meaning low in oxygen concentration) environments, one functional class of animals is notably rare or absent: carnivores, the postulated ecological drivers of Cambrian diversification (16). Thus, although the redox transformation of global oceans may postdate the origin of animals by more than 100 My, it does approximate the emergence of large animals capable of fossilization (bones, of calcium. Some D vits in there, with the sun and stuffs) and carnivores capable of fomenting biological revolution within the metazoan ecological landscape. The threshold values needed to sustain such animals were perhaps not especially higher than the minimal requirements for animal life (10, 11, 16, 17), but there are clear differences between oxygen levels permitting animal life and those permitting large, diverse, and ecologically important animals. (14)

Now, here's what the guy says:

"In periods when oxygen levels declined, the resulting drop in atmospheric density led to increased surface evaporation, which in turn led to precipitation increases and warmer temperatures, according to University of Michigan paleoclimatologist Christopher Poulsen.

“The connection between oxygen levels and climate has never been considered. It turns out that it’s an important factor over geological timescales,” said Poulsen, a professor in the Department of Earth and Environmental Sciences. While not as critical to climate as levels of heat-trapping carbon dioxide gas, oxygen plays a key role, he said.

Throughout Earth’s history, oxygen levels repeatedly rose and fell. Removing oxygen molecules thins the atmosphere, increasing the likelihood that incoming sunlight will make it to the surface without getting scattered away. More sunlight means more evaporation from the surface, which leads to higher humidity levels and increased precipitation. As humidity levels rise, temperatures also increase because water vapor is a potent heat-trapping “greenhouse” gas. Adding oxygen molecules has the opposite effect: a thicker atmosphere, more scattering of incoming sunlight, reduced surface evaporation, and less heat trapped by water vapor." (15)

There's the carboniferous Period as well,(16) with that load of trees.

In that period, we got Carboniferous coal. "Carboniferous coal was produced by bark-bearing trees that grew in vast lowland swamp forests. Vegetation included giant club mosses, tree ferns, great horsetails, and towering trees with strap-shaped leaves."(17)

Giant forests. And how do humans live? By getting oxygen from forests, planktons and so forth. The giant trees are not sucking up all the Oxygen. They do need both oxygen and carbon dioxide to live. But there must be enough CO2 and O2 at the same time, and them animals got the fossils to show that they took profit of it.

Then again, in a certain irony to the current role posited by people for coal, this article here, by Alexandru Micu, says:

"Carboniferous... translates to ‘the coal-bearer’. One unexpected side-effect of all this coal being formed, however, was that CO2 in the atmosphere was increasingly sequestered underground. Because of this, the Earth began to rapidly cool down. By the end of the Carboniferous, a full-fledged Ice Age had developed, one which came very close to lock our planet in a permanently frozen state."

Might want to check on the positive feedback look for CO2 and H2O as well. The stats are to come.

So, would you be optimistic or pessimistic about climate change?

Them muscles need oxygen to move the Tyrannosaurus Rex body. Keto is the less-O2 way.

P.S: It takes exponential amounts - doubles - to get 1 degree raises. (19)

Don't say 'save the planet', say 'save our current pre-set of species', then I will believe you.

Say 'to prevent our habitable earth from losing heat 'too quickly' ', then I MAY believe you. That rationale only works if earth will become inhabitable because it is losing oxygen, by heat, rather than by containment of heat, too quickly. Don't say 'save our planet'. Say 'save the planet'. Above all, it all assumes that earth will not remain habitable until the sun expands too much, or until an apparatus is available to prevent the sun from expanding. That not being the case, it only means 'save the current pre-set of species', which, coincidentally, includes humans.