So, climate change doesn't necessarily mean that the Earth gets warmer.
It can also mean that the climate atmosphere cools.
The Ice Age represents just one example of this cold climate change.
We mostly worry ourselves with global warming, but global cooling would be equally as horrific, because the harvests would fail, and many crops would become untenable in places where they used to thrive.
Whether warming or cooling, dramatic climate change doesn't benefit the world – in either direction.
Let’s start with what seems like an easy question – What is climate?
Generally, the answer is exactly what you think it is. Climate is the weather in an area, whether it be a microclimate or the entire globe. It includes things like temperature, wind speed, humidity and much more.
Climate is the air we breathe and the nature that exists around us.
We experience a number of climates in our lives, but let’s consider two for the time being – the climate in front of a building in a specific region (outside) and the climate inside the building (inside).
When we’re talking about an outside climate, we can look at historical analysis and current scientific readings to predict what the climate might be now, and in the future.
January in Helsinki is always going to be cold. The climate for a particular geographical area, such as New York City, has a typical annual weather course.
So you can expect it won't be -22°F in June or July in New York, and in December, you won't predominantly experience temperatures of 86°F.
Likewise, one assumes warm temperatures all year round in Havana.
We also call an the artificially created relationship between temperature and humidity in an enclosed building a type of climate.
Even though the climate inside may be harder to predict, certain trends can’t be ignored.
Here, too, one can assume certain temperatures on average.
If you go into an office or shopping mall, you can predict that it will typically be an overall pleasant climate.
If you go to a hot yoga studio, the expectation would be that it would be less pleasant.
However, some places always need air conditioning or filtration to maintain certain purity standards or if you want a steady building temperature and humidity level.
Other inside climates do not need or do not have air conditioning. Here, the climate in a building fluctuates depending on the outside temperature, ventilation, and humidity level.
People perceive the concept of temperature differently, at least within certain limits.
Is it always the same when the temperature is, e.g., 86°F, or can this temperature also be perceived differently? 86°F (30°C) will feel subjectively different to different people. Of course, the temperature is only one metric as to how a climate is measured.
Humidity is an equally important factor that most people usually underestimate. 86°F (30°C) with a humidity level of 30% will always be more comfortable than the same temperature with a humidity level of 78%.
Put another way, Las Vegas can exceed 110°F (43.3°C) on a summer day, and it’s still more pleasant than 90°F (32.2°C) in Miami. But why is that?
There is a very unpleasant side effect with a humidity level of 78%, in addition to feeling hot. We can feel this ourselves when we expose ourselves to high humidity conditions, and it all comes down to breathing. Put simply, breathing at a humidity level of 78% humidity is much more challenging than at a humidity level of 30%. The warmer the air and the higher the humidity, the higher the water content in the air rises in proportion.
This is important, because when you include warmer temperatures, the humidity rises even further. Warm air can absorb much more water than cold air.
The trend is inescapable.
When the proportion of water in the air is higher, the water displaces the oxygen content in the air. It is exactly this additional water in the air that makes the air heavier, making it harder to breathe.
The oxygen content in the air is lower when the humidity is higher!
One reason it is much more challenging to work or even go for a walk with higher humidity is the weight of the water in the air. But logic takes us to the natural corollary rule.
When there is less oxygen in the air, the human body needs more breaths to obtain the same amount. In other words, the human body absorbs less oxygen at 86°F (30°C) and a humidity of 78% than at the same temperature and humidity of only 30%.
Through this insight and countless hours of research, we have even discovered that this is the reason why people in warmer countries tend to be shorter in height than those similar representations in colder countries.
The demographics match the traditional notions, namely that Italians, Indians, and Mexicans tend to be shorter than their counterparts from Canada, Sweden, and or the Netherlands.
Public records confirm this rule is true, and more importantly, these size distinctions are substantial. Of course, this kind of research omits people that expatriated from another area and only applies to people who were born in and grew up in the subject area. Once the growth phase is complete, Mexicans, Indians, or Italians in Canada cannot continue to grow.
Even within the artificial boundaries of a nation like Germany, different parts of the country have taller people and others are known for shorter people.
People from Hamburg are, on average, taller than Bavarians, although the temperatures do not differ as much from the coastal region of Hamburg to the southern city of Munich greatly differ.
This indicates that temperature and humidity are not the only factors at play.
The principles mentioned above are the primary reason.
We just explained that the oxygen content in the air is the reason for height differences in people, and in cold countries, the oxygen content is higher than in warm countries.
But as we mentioned, the differences in temperature between Hamburg and Munich are not substantial.
So, what could it be? In Germany, it is not the heat that plays the decisive factor. It's a simple exercise of physics, but in essence, it all comes down to air pressure and gravity.
The key distinction in this problematic example is that Hamburg sits at a mere 20 feet (6.1m) above sea level, while Munich has a much higher altitude, 1,706 feet (520m) above sea level.
Therefore, this difference is why a person in Hamburg weighs more at the airport than the same person just 1 hour later at the airport in Munich, assuming they didn’t eat or drink anything.
Even the suitcase will be lighter to carry in Munich than in Hamburg.
Why is that?
The answer is simpler than you would expect.
The objective measurement of gravity is lower in Munich because Munich is 1.706 feet higher above sea level, so the barometric air pressure in Munich is lower, and as noted above, lower air pressure automatically and irrefutably means less oxygen in the air, making breathing more difficult.
The body has less oxygen available to develop physically in Munich or warm countries than in Hamburg or cold countries. That's why these height differences exist between different countries and regions – warm and moist air contains less oxygen. And the higher the altitude of a city, the less air pressure and, correspondingly, the less oxygen is available to the people there.
Of course, there are exceptions, and the premise above is based on selective information, but the general rule has been proven through our research. If a child in Bavaria spends much more time outdoors (i.e., in the fresh air), he may ultimately obtain and use more oxygen than his or her counterpart in Hamburg, especially if that child spends a lot more time in his nursery in front of the computer, the child in Munich naturally gets much more oxygen than the child in Hamburg.
Then, of course, the child in Munich can grow taller than the one in Hamburg.
And we aren’t ignoring the importance of genetics in this discussion, but our analysis has proven that genetics are subordinate to the metrics discussed above.
You can see that within every family around the world.
If genetics were the only or definitive concern, all family children would be the same height.
The nurture element of the equation is equally important.
So why is there a difference in the height of siblings?
One thing is for certain - it makes no difference whether one is the first-born or last-born child of the family. However, in a fascinating corollary to our research, we discovered that here, too, when a child is born in the winter, he or she tends to get more oxygen in its first few months because of the colder air climate than a child born in the summer. This has been proven to affect the overall height of a person.