When I was young my father had an espresso machine. He used it in front of me and I noticed that steam came out.

I told him that "with every espresso you make winter gets a bit colder."

I tried my best to explain why to him, even though I was only 3 years old.

I've studied clouds in school. Stratus, nimbus, and others.

I learned that they collect pollution. What could this pollution be from? I don't think anything could reach the atmosphere except smoke. I noticed that they turn gray in color and I thought that they rain because they get heavier, from the smoke, and then the smoke goes in the ground and ocean.

When I was in Italy through a plane flight I noticed that the air was really clean, but it was a bit colder than other countries I've flied through. This is through the different coffees made there.

Anyway I and my father were speaking. I thought for a bit and said that if there's steam it goes in the atmosphere.

Sometimes sunlight was yellow and warm during daytime, sometimes it was clear. I thought the only way this is possible is if it goes through a filter, clouds.

There is global warming, and maybe global cooling. When people make an espresso there's a lot of steam. It would logically be equivalent to the amount of smoke the factory makes to produce electricity. But it's not. It also takes time to heat water to become steam in the first place.

I asked my father "piesh li si cafeto dokato e toplo." [Do you drink your coffee while it's hot; while there's still steam?]

Some parts of physics aren't just real, they're surreal.

The earth isn't getting warmer all the time, sometimes it gets colder. This is because when sunlight passes through clouds it heats the earth a bit less, and its light is a different color, called clear.

Nature has been made on our planet in a way that we can live on it, survive, and even thrive, based on the way it works to support us.

Italy had clean air, and not a lot of people smoke.

Sunlight does something else, it is energy that turns into matter, called plants... so if someone asks you if the earth is changing in size -its expanding from that light.

For a moment during our discussion I thought that with global warming, there is also global cooling. The earth simply moves in cycles, maybe lasting hundreds of years, so we don't notice that it sometimes may be much colder, the next generations after us notice it.

Yet the earth is generally getting warmer. Physics says that things are equal. I can only see one exception. Tobacco.

When people smoke oxygen is used up, but the energy from the sun added a physical part, a plant, so you get more smoke out of it than the oxygen that goes in it.

For a rural area, with a lot of plants, or a mountain with a lot of trees -this is Okay, but not for a city. If you're much older, a long time ago smoking was allowed in apartments, it still is in Europe, and people noticed that sunlight looked different while passing through the smoke, the same way it looks different when it passes through clouds.

The interesting thing is that, when we throw away all the obstacles and just focus on balance, sometimes these gray clouds from smoke allow even less sunlight to pass through them, so the earth gets a bit colder, and it may be that we neither have global warming nor global cooling globally. It's just a cycle between the two lasting hundreds or thousands of years.

For some generations it became really hot during summer, for others it got a bit colder.

The last thing is that by making espresso -you're cleaning the air, because there is more steam to absorb pollution, but water gets a bit more polluted.

And even then nature is working to help us to thrive. Many of the animals in the ocean, fish, may be working to purify water from that smoke for us. It's just a cycle, there is balance in everything.