Then the clouds are grouped by shape and how high they can be found in the sky. Hence, we define them as:

- Low-level clouds: cumulus, stratus, and stratocumulus
- Middle clouds: altocumulus, nimbostratus, and altostratus
- High-level clouds: cirrus, cirrocumulus, and cirrostratus
- Cumulonimbus clouds rise across the low, middle, and upper atmosphere.

One could add fog as a shallow layer of cloud that is closer to the ground. It makes for an eerie feeling to drive through fog, especially when driving up or down a hill, and you enter it to leave it behind. Same as when a plane dives into or climbs above clouds. All these forms are essentially made of water droplets and ice crystals and their shapes depend on how moist is the air, what atmospheric pressure surrounds them, and their condensation. An amazing sight is the one of clouds hurled by the wind, changing shapes, or even at times dissolving into thin air. Light from the sun, and at times the moon, passes through the clouds. When it doesn't because of their thickness, the clouds appear to be grey or of a darker shade.

In the past few years, many people have noticed that the skies sometimes resemble a giant checkerboard with white trails crisscrossing above our heads. Some claim this is the result of cloud seeding, which is a technique for creating clouds to influence the weather. Microscopic artificial cloud condensation nuclei (CCN) are dropped in lower altitudes of the sky to control precipitation. It is especially efficient in arid areas or when facing forest fires, and can even deflect hurricanes from populated areas towards the oceans for example. Understanding this process allows to define contrails (condensation trails) as the "clouds" a jet engine leaves behind it, due to atmospheric conditions.
Chemtrails (chemical trails) on the other hand are highly disputed by numerous scientists but are more and more denounced. They take place at much higher altitudes in the stratosphere by creating cirrus clouds and their environmental impact is negative. The released chemicals reduce the chances of natural rainfall and can cause a drought followed by flash flooding. The analysis of soil in areas where chemtrails have been used shows dangerous levels of aluminum, arsenic, barium, cadmium, chromium, lead, and thorium among others. This is a poisonous mix for people's health and also nature. Have you wondered why more and more people lack the natural suppressors for tumors in their bodies? What is making heart failure increasingly common?

We are exposed to all kinds of toxins and pollutant particles, in our foods, the water, and our immediate surroundings. The remedy is to simply detoxify our bodies and lifestyles, by rebuilding and renewing our cells and tissues through healthier ways of life. What do you think?