The "Gaia hypothesis" is deeply related to the understanding of water on the earth, so it will be a little longer, but I will explain it.

In traditional theory,

Thinking separately from the global environment and living organisms,

Life forms adapt to changes in the global environment

I saw it as changing.

However, in the "Gaia hypothesis"

The global environment and living organisms are one

Both are changing together

I will catch it.

Because the earth itself is one life form

It is the theory.

How can you say that?
A dinosaur that had lasted for more than 100 million years was extinct 65 million years ago due to a collision with a giant planet.

After about 2000 years of glacial period,

The earth will once again create an environment in which life forms can live

Get it back.

During this time, a quarter of all living organisms including microorganisms

It is said that he survived.

Human ancestors are also included in it.

The question is, why was the Earth able to restore the environment in which life forms can live again?
It is one of the environments where living organisms can live again.

Looking at the composition of the atmosphere,

Nitrogen 78.0%, oxygen 21.0%, carbon dioxide 0.03%, other gas 0.97%

The composition continues to this day and is the same everywhere on earth.

Important for aerobic organisms such as humans

"oxygen"

Looking at the ratio of

If 21% increases to 2-3%,

Fires occur frequently,

It is said that wildfires cannot be extinguished.

Also, if it is 2-3% less,

The amount of oxygen that dissolves in seawater, freshwater, and soil is reduced,

The activity of living organisms is significantly reduced by oxygen,

It ’s an unimaginable situation,

The current environment is said to be broken.

Such an exquisite composition balance was restored by chance,

It cannot be kept.

The earth is a planet that orbits the solar system and is a member of the universe.

According to the law of the universe (entropy)

Atmospheric components

Nitrogen 0%, Oxygen 0%, Carbon dioxide 99.0%, Other gases 1%

It must be.

The atmospheric composition of the earth

Returning to the living composition of living organisms,

The reason why it is kept

"Because the earth itself is one life form."

I can only think of it

It is the basis of the "Gaia hypothesis".

In the definition of life

There is homeostasis.

What is homeostasis?

Work to keep one's body in a certain stable state

That is.
The homeostasis function of the earth is demonstrated,

The atmosphere in which life forms can live again

The "Gaia hypothesis" that it was restored

In the famous scientific journal "Nature" in 1960

Announced,

In addition, "THE GREAT EXTINCTION",

The Japanese version says "Why are dinosaurs extinct?"

Published

There was a lot of controversy,

It is now common sense that even children know.

However, on the "life planet Earth"

Even if you know that you have homeostasis

About the physiology of that part

The reality is that little has been clarified yet.

Dr. Lovelock is also modern

"Victorian biologists

Go to a distant foreign jungle

It's like when I collected the specimens. "

Is saying.

The recognition of "water" cannot be regarded as "water" in the living body called Gaia.

It is only considered as an objective H2O solution,

It can be said that Dr. Lovelock is at a metaphorical level.

About "Life Planet Earth = Gaia" and "Water"

Especially about the purifying power of "water" itself

I will summarize what I have learned so far from the next time onwards.