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Anonymous users2024-02-07Lack of water resources Due to the vast land and sea areas of the earth, freshwater resources are insufficient. China has been included in the top 10 water-scarce countries. If people no longer cherish water, then they will face only the road to destruction!
In addition, due to the excessive reclamation of land, the amount of groundwater has decreased dramatically, and the land has declined. Let's make a water contract together! Tomorrow will be even better!
Over-exploitation will only lead to the opposite "Boom! Knock knock! "The mudslide is coming!
People shouted. After a while, the mudslide washed the house down! This is the earth crying.
Due to overdevelopment, trees have been cut down, causing environmental damage and mountain cracking, resulting in mudslides. As a result, mudslides have washed away people's homes
People's every move may be related to people's future, for example: people litter, the ozone layer is destroyed, there are loopholes in the sky over Antarctica, ultraviolet light directly hits the Antarctic ice sheet, the Antarctic ice sheet covers an area of 13.98 million square kilometers, and the thickest place is 4,200 meters The total area of the Antarctic ice sheet is as much as 24.5 million cubic meters, and if it all melts, the earth's ocean level will rise by about 60 meters, and the earth's land area will shrink by 20 million square kilometers This will cause a huge disaster in the relatively densely populated low-altitude areas, so let's make a contribution to this human home!!
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Anonymous users2024-02-06Categories: Education, Science, >> Science & Technology.
Analysis: Population Expansion.
The oil crisis, the energy crisis, the environmental crisis, the crisis facing the planet.
2006-12-4 22:02:00 | by: mike ]
Water: By 2025, two-thirds of the planet's population is likely to live in water-scarce areas.
Energy: Oil production peaked in 2010 and entered a downward trend.
Climate change: described by British Prime Minister Tony Blair (featured, gallery) as the world's worst environmental challenge. These include increasing storms, floods, droughts and species extinctions.
Biodiversity: Many scientists believe that the Earth has entered the sixth phase of mass species disappearance.
Pollution: All newborns have harmful chemicals in their bodies. One in four people is expected to be exposed to harmful compounds of air pollution.
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Anonymous users2024-02-05So far, the earth has experienced more than one end of the world, according to the law of entropy increase, after 10,000 years, neither humans nor the earth can escape the fate of destruction, but according to scientists, there are four main ways to destroy the earth in the future.
The first asteroid hits the Earth and causes a super hurricane If an asteroid has enough energy and heat to hit the ocean, his energy is at a rate that warms the sea to 49 degrees Celsius, which may cause a super hurricane, and the second Jupiter becomes a star This gas giant is twice the mass of all the planets in the solar system combined, but if Jupiter's mass continues to increase, it will cause fatal damage to the Earth, and due to gravity changing the Earth, it may really become a wandering planet in the movie, In that case, the heat of the sun will be lost, the surface of the earth will freeze, and all life will be destroyed.
Third, the sun swallows the earth The sun burns 600 million tons of hydrogen every second, so it is only a matter of time before it is completely burned, and when this happens, the core of the sun will begin to shrink, and the pressure and temperature will increase, which will cause the sun to spew out a lot of energy, and the outer layer of the sun will expand outward, creating a deadly heat wave on the earth, our oceans will evaporate, and the radiation will scorch the earth, and finally the sun will swallow the earth completely.
Fourth, the earth is sucked into a black hole, as a product of a dying star, one of the most mysterious forces in the universe black hole, its gravity is enough to tear other planets and stars, if there is a black hole near the earth, this monster will stretch the earth like a rubber band to flatten all matter horizontally, and send it into endless darkness and void, whether it is human beings or everything in the universe, it will never escape the fate of the past.
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Anonymous users2024-02-04There is an existential crisis about the planet.
In recent years, humans have consumed one-third of the planet's available resources. In the Atlantic, there were 10,000 tonnes of cod in the Atlantic, and now there are less than 10,000 tonnes left. During this period, the Earth's forest cover decreased
The number of species in Europe's rivers and lakes has declined Suppose the quality index of the Earth's ecosystem is , and now the index has fallen to , with less than half of the populations of many mammals, reptiles, birds, and fish. It is not yet possible to count exactly how many species of life on Earth have become extinct, because it is usually only when scientists fail to find another organism for up to a year that it can be declared extinct.
At the same time, human demand for resources doubled during the year and continues to grow at an annual rate. At present, the hectare of the earth can only meet the needs of one American, and only one Central European can meet the needs of one Central European, and the Burundians in Africa have the least needs, and they also have hectares.
Even so, many people are not satisfied with this life. Therefore, at present, humanity needs to find two habitable planets and move there in the future. However, the prospects for relocation are not optimistic, and humanity still has to find ways to solve the most serious problem of the depletion of the earth's resources.
Human Practices:
1.Clean your home and reduce the use of chemical cleaners or pesticides.
2.Lemon and charcoal are used to eliminate odors and replace chemical air fresheners.
3.When the utensils are not too greasy, wash them with warm water and reduce the use of dish soap.
4.A variety of indoor and outdoor plants can make the surroundings cool and reduce the amount of fans and air conditioners.
5.Always maintain electrical appliances (especially air-conditioners) to reduce power consumption.
6.Choose effective electrical appliances (refer to the Council's presentation).
7.Non-essential appliances (electric toothbrushes, etc.) can be bought for less.
8.If it is not too hot, it is more efficient to use an electric fan instead of an airconer.
9.The refrigerator can save electricity by placing it in a cool corner, and close it as soon as possible after opening the door to pick up things.
10.The refrigerator does not store too much food, which saves electricity and reduces the risk of poisoning.
11.The use of fluorescent lamps and energy-saving lamps is more energy-efficient and allows for more use of natural light.
12.Turn off the lights and air conditioner when you leave the room.
13.Wear more clothes on cold days and turn on the heater only when necessary.
14.Accumulate a machine of clothes before opening a washing machine, which saves water, electricity and labor.
15.Use more showers and less bathtubs, which can save a lot of water.
16.Use a quick pot or smoldering pot to cook food, which not only saves fuel and time, but also conserves nutrients.
1. Climate change.
Likelihood of a temperature increase of more than 2 degrees Celsius in the next 70 years: High risk factor: 6 >>>More
Soil destruction Arable land is now decreasing in fertility in 110 countries. In Africa, Asia and Latin America, soil erosion is severe due to the loss of forest cover, overexploitation of cultivated land and overgrazing of pastures. >>>More
The surface of the sun's photosphere sometimes appears in dark areas, which are where the magnetic field gathers, known as sunspots. And how do sunspots affect the Earth's climate? While the scientific community is still inconclusive about this, there are some theories.
No, at least, it is impossible for a long time, although monkeys are very similar to humans, and they are constantly evolving, but human civilization has been developing for countless years, and in a short period of time, they cannot catch up, and evolution, is an extremely long thing, even if one day monkeys really evolve the same as humans, presumably at that time, human beings have also walked out of this solar system.
A solar storm is a manifestation of the sun's intense activity, which occurs once every 11 or 12 years, and is an instantaneous behavior that does not cause extreme climate on Earth. Changes in the sun's long-term irradiance will affect the Earth's climate in the long run. Modern paleoclimatic data have shown that the Earth's climate is regulated by orbital forces, that is, changes in the amount of solar radiation received by the Earth.