Why are there winters and summers? What is the connection between summer and winter

Hehe, I just learned geography a few days ago.

I know the concept by heart

Supplement what my sister said earlier

Spring: Around March 21, the sun shines directly on the equator, this day is called the vernal equinox day, and the moon around the vernal equinox is spring in the northern hemisphere.

Summer; Yes Yes Around June 22, the sun shines directly on the Tropic of Capricorn, and this day becomes the summer solstice

Autumn: Around September 23, the sun shines directly on the equator, this day is called the autumnal equinox day, and the three moons around the autumnal equinox are autumn in the northern hemisphere.

East: Around December 22, the sun's rays shine directly on the Tropic of Capricorn This day becomes the winter solstice day, and the three moons around the winter solstice date are winter in the northern hemisphere

My sister said it before.

12 hours of day and 12 hours of night are"Day and night are equinoxized"Autumn and spring are equinoxical to day and night, that is, when the sun shines directly on the equator

Then there is the time when the sun is directly shining on the Tropic of Cancer, and the north machine is called during the day for 24 hours"Polar Day"

When the sun shines directly on the Tropic of Capricorn, it is dark in the north and 24 hours a day"Polar Night'

Hehe, it's a bit unrealistic, but I learned it a while ago on my own

It doesn't matter if you don't give the best, long knowledge flickering

Although it is just now, the temperature in many places has reached 40 degrees, which is a step up compared with the previous year, and it is precisely because of this that people are worried about whether this winter will be colder.

Is it true that the summer gets hotter and the winter gets colder?

2022 depends on the place, after all, my country has a wide area, and the temperature of various provinces and cities is not the same, but according to the past situation, the reason why some places are hotter in summer and colder in winter, because the annual average temperature in a certain area is basically a constant, which will not change too much, if the summer temperature is too high, then the winter temperature is the same as in previous years, and the annual average gas will exceed this constant, which is an abnormal climate, but it will not happen under normal circumstances, so the temperature in summer is high and the temperature in winter will be lower. In this way, the average annual temperature basically remains the same or does not change much, why is it hot in summer and cold in winter?

There are many reasons why summers are getting hotter and hotter. To sum up, it is the principle of the greenhouse effect. All kinds of heat-containing gases such as factory exhaust gas, air conditioning heat, etc. are discharged into the air, and modern urban roads are becoming more and more perfect, and the ability of asphalt pavement to absorb heat is very low.

In the same way, it is already cold in winter, and the ground cannot absorb heat, and the indoor air conditioner exhausts cold air, which causes it to get colder and colder.

The hotter the summer and the colder the winter, it is an experience that many people have, generally speaking, this is a law of conservation of energy, and because in the summer, the sunlight is more abundant, and then more carbon dioxide is released, so it will lead to an imbalance in the thermal cycle. One of the reasons why the summer is getting hotter and hotter is that global warming is still going on, but that's not the main reason, I think it's because urbanization is exacerbating the heat island effect. Winter is getting colder and colder is an illusion, in recent years, many places in eastern China have frequent winter cold waves, but in fact, compared to the really cold winter of the sixties and seventies of the last century, it is still much warmer, of course, most people have not experienced that time now.