People are daily destroying their own living environment in many ways, accidentally or intentionally. From the wrong buildings, farming, mining, or just as simple as the daily routine . have been distorting the planet's surface. It is human greed that will destroy all.
The reverse side of hydroelectric dams
Public buildings are not always useful to the public. Typically, Chinese hydropower dam projects. With the goal of producing clean energy, massive dams cause flooding in the surrounding areas, destroying the ecological environment .
In 2007, China completed the world's largest hydroelectric dam project - the Three Gorges Dam. This work has occupied the habitat of 1.2 million people, flooding 13 major cities, 140 towns and 1,350 villages. Hundreds of factories, mines, landfills and industrial parks were submerged in the water, causing water in a nearby reservoir of water to be heavily polluted. This work transformed a majestic river once into a tranquil pond and the death of thousands of aquatic species here.
Scientists also associate dams with earthquakes. The Three Gorges Dam was built above two major fault lines, and since it was built there have been hundreds of minor tremors. They also said that the disastrous Sichuan earthquake in 2008 killed 80,000 people in part because of the water rushing to the Zipingpu dam located very close to the fault line that caused the earthquake.
Overfishing seafood
The delicious seafood dishes that are loved by many people are increasingly dwelling on the oceans. According to the World Wildlife Fund (WWF), human demand for seafood is 2.5 times higher than that of the sea. The more popular seafood species are, the more depleted they are. Modern fishing boats are the main culprits. They are mobile seafood processing plants, equipped with modern detection devices. Upon discovering the target, a giant 3-yard ball net will be dropped, capturing a large group of fish in just a few minutes. Experts predict that, without intervention, many familiar seafood species in the human daily menu will disappear from the ocean in the next 40 years.
Immigration and invaders
When people move to a new place to live, they often bring animals or plants in their hometown to grow in new lands. This work unintentionally disturbed the native flora and fauna, which is one of the most destructive causes of environmental damage.
These new invaders will scramble for habitat and food, pushing ' locals ' to a doom. A typical example is the bird species (living in the island nation of Mauritius in the southwestern Indian Ocean), which is now extinct due to ' alien ' creatures such as cats and mice . brought by European sailors. destroyed the nest and ate their eggs.
Coal and mineral mining activities
Coal is a plentiful source of energy, but accompanied by the production of coal-based electricity, the huge CO 2 emissions are destroying the atmosphere. Its consequence is that climate change is happening on a global scale.
Another problem of the coal mining industry is waste, such as rock and soil, and trees dug up during mining will be dumped into neighboring valleys, strangling streams, destroying the environment. of creatures, exhausting water flowing into rivers; In addition, industrial waste is washed away into rivers, causing serious pollution.
Disaster from human negligence
Sometimes, only a small negligence of humans causes catastrophic catastrophic consequences.
Exxon Valdez's catastrophic oil spill in 1989, in addition to robbing tens of thousands of fishermen of their lives, and the death of millions of other marine life in Alaska waters.
Most recently, the BP oil spill occurred in the Gulf of Mexico in April 2010 and even caused more serious consequences than the Exxo case, which is considered the most horrifying oil spill in history. Until now, it is still too early to estimate the extent of the impact as well as the damage caused by this incident, but it is certain that the people and ecosystems in this area will suffer severe damage.
Transport
Each year an active car releases about 5.4 tons of CO 2 in the form of emissions. In addition to the long-term harm to the ozone layer, causing the greenhouse effect to cause global warming, these emissions also cause immediate harm to people through increasingly common respiratory diseases. Moreover, the industry of exploiting and supplying fuel (gasoline) for all kinds of transport means also leaves many bad consequences for the environment.
Agricultural activities are not sustainable
Unsafe agricultural activities are the main cause of soil and water pollution. For example, in the United States, 70% of water sources such as rivers and streams are contaminated with chemicals from chemical fertilizers and pesticides that are washed away from fields.
In addition, the large-scale livestock industry with hundreds of thousands of cattle is releasing huge amounts of untreated emissions from their manure. These gases also "contribute " to warming the Earth.
Deforestation
Forests are shrinking or disappearing daily, especially tropical rain forests. With the current deforestation momentum, scientists estimate that in the next 100 years, the entire forest on earth will disappear.
Loss of forest as well as loss of lungs; there are not enough trees to absorb and convert greenhouse gases. No more forests mean Vietnam lost barriers to protection and protection, leading to serious erosion and flood disasters.
Overpopulation
Population researchers say that if we don't moderate the population peacefully through family planning programs, nature will help with this but with devastating measures. like plague and hunger.
In just 40 years, the world population has increased from 3 billion to nearly 7 billion people. Each year an additional 75 million people - equivalent to the population of Germany - were born on the planet. It is estimated that by 2050, the earth's population will exceed 9 billion people.
Increasing population means increasing demand for food, increasing the amount of waste. Industries operate at full capacity to serve people. Resources are depleted. The earth is gradually exhausted.
In short, the more densely populated people, the more complex and difficult problems are generated.