Lead
"The melting of the world's glaciers has melted 28 trillion tons of ice, and if this 28 trillion tons of ice were used to flood all of China, then China would be flooded to a depth of 2.9 meters, what does the earth want to do?"
This is the content of many news reports in recent days, how serious is the melting of glaciers around the world?
What will be the effect on the planet when it melts?
And how do humans affect this natural process of the planet?
What does the Earth want to do?
Today, let's explore these questions together.
1. The world has melted 28 trillion tons of ice, which can submerge the 2.9-meter-deep sea water of all of China.
If there are any glaciers on Earth, there are about 330,000 to 46 trillion tons, most of which are located in Antarctica and the Arctic, which are the places where the world's melting is most severe.
Recently, the British journal Nature published a new study that found that the world's glaciers have melted about 28 trillion tons since 1880.
So how many of these 28 trillion tons of melting glaciers are, and if you calculate the amount of water after these glaciers melt, it is equivalent to a lake with an area of the whole of China, and the depth of this lake will reach 2.9 meters.
Scientists say that if all of the 28 trillion tonnes of ice melted and turned into seawater, global sea levels would rise by about 7.2 centimeters.
Sea level rise from melting 28 trillion tonnes of glaciers, equivalent to twice the rate of global sea level rise each year, has been warming for about 150 years, and the period we are currently in is a glacial period on Earth, due to the fact that humanity has been accelerating the process of warming the planet.
As human beings, we have been doing our best to stop the rate of global warming, but we are not doing enough, and we are not achieving the desired effect, what will be the impact of these 28 trillion tons of glaciers on the planet after melting?
What is the Earth going to do?
2. Global warming is a natural operation of the earth, and humans have accelerated this process.
In the past, people used to burn biomass for heating and cooking, but then humans began to mine coal and oil mines, and the carbon dioxide produced by burning these ores was emitted into the atmosphere.
For thousands of years, the global carbon dioxide level has been very low, but as humans continue to multiply, the demand for ores is increasing, and the carbon dioxide emitted by the combustion of these ores is also increasing.
Humanity is trying to find a more efficient torch, and at the same time it is looking for a source of energy that emits relatively small, but humanity has bypassed the simplest way.
The Earth's greenhouse effect keeps the Earth's surface temperature at around 14°C, while theoretically it should be minus 21°C, thanks to the greenhouse gases on the Earth's surface, which serve as a source of warmth, and when humans start emitting carbon dioxide continuously, the global greenhouse effect will become more and more severe.
On Earth, only the greenhouse effect can help human life, but if the greenhouse effect is too severe, then the temperature of the earth will continue to rise, and the polar glaciers on the earth will begin to melt.
In the last 4.6 billion years, the Earth's initial temperature may have reached 30°C, and since then, the Earth has begun to cool, and it took about 1.7 billion years or so for the Earth's surface temperature to reach 14°C.
In the past 1.7 billion years, the earth's oceans have also been forming, but the earth's temperature is still rising, which is because the earth's oceans are only in the new state, and the earth has not yet reached a stable state.
When the Earth starts to heat up, the oceans start to evaporate, and then the steam starts to rise and cool, eventually falling to the ground, and the cycle continues.
As time goes on, the number of oceans increases, and the temperature of the earth decreases steadily, due to the fact that the oceans on the earth take away the heat from the earth, and then gradually release it.
3. Changes in the Earth itself caused the Earth to go through glacial periods.
The same is true for ores on land, which are constantly burning and also release carbon dioxide, which then binds to the moisture in the soil, and the nutrient cycle is continuous.
Carbon dioxide in the ocean also binds to seawater and then gradually settles on the seafloor to form different sediments.
As this cycle continues, the earth gradually moves towards a stable state, and the number of oceans is also increasing, which is also because the oxygen content on the earth is constantly increasing, so that the life on the earth is also increasing, and the temperature of the earth will gradually decrease.
When the Earth's temperature drops to about 15°C, the Earth will enter an ice age, but the carbon dioxide in the ocean will gradually decrease, which will cause the Earth's temperature to continue to drop, so the Earth will enter a colder ice age.
The earth will continue to cycle between ice ages and heat waves, and this is also caused by the changes of the earth itself, but the earth's greenhouse effect has always existed, because the earth's oxygen is not only beneficial to living things but also a kind of protection for the earth.
Organisms on the earth are respiring through photosynthesis, and the reaction to photosynthesis needs to be carried out through sunlight, but the sunlight on the earth will cause harm to organisms, and the ozone layer in the atmosphere on the earth can shield most of the damage, so that the organisms on the earth will not be affected by sunlight.
Therefore, the greenhouse effect on the earth has always existed, but the amount of carbon dioxide on the earth has been declining, and this is because of the photosynthesis of living things.
Nowadays, human beings continue to emit carbon dioxide, the greenhouse effect on the earth will gradually increase, and the temperature on the earth will continue to rise, and the environment inhabited by human beings will gradually deteriorate.
epilogue
The climate on the earth is changing all the time, which is determined by the natural laws of the earth, but under the influence of human beings, the rate of warming of the earth is getting faster and faster, which is a very dangerous thing for human beings.
Therefore, human beings need to control and reduce carbon dioxide emissions, so that the earth's greenhouse effect will gradually decline, so as to mitigate the adverse effects of climate change.
Only in this way can the living environment of human beings be improved.