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On-line etiquette /Gadjets in out life
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| bet | 32/32 | | Sana | 07.06.2024 | | Hajmi | 14,21 Mb. | | #261071 |
Bog'liq YULDOSHEVA SIn recent decades, there has been a growing realization that the quality of our air, water, soil, and food affect the quality of our health and of our lives. This ranges from increased allergies, respiratory disease, and cancers to the disorder of the body’s hormone and fertility systems, and premature death. The causes of our various environment-health problems are numerous and include pollution from transport, agricultural activities, industrial processes, domestic waste matter and waste management. - In recent decades, there has been a growing realization that the quality of our air, water, soil, and food affect the quality of our health and of our lives. This ranges from increased allergies, respiratory disease, and cancers to the disorder of the body’s hormone and fertility systems, and premature death. The causes of our various environment-health problems are numerous and include pollution from transport, agricultural activities, industrial processes, domestic waste matter and waste management.
The scientific researches, conducted over centuries, show that the pollution of the atmosphere reached its top. The contaminants in the air have a negative impact on the health of children, as well as adults. Our respiratory organs, our vision, and our hearing are damaged because of the high amounts of contaminants in the air, water, and soil. A substantial number of people have conditions such as asthma, other respiratory problems or difficulties with additional organs of the body. - The scientific researches, conducted over centuries, show that the pollution of the atmosphere reached its top. The contaminants in the air have a negative impact on the health of children, as well as adults. Our respiratory organs, our vision, and our hearing are damaged because of the high amounts of contaminants in the air, water, and soil. A substantial number of people have conditions such as asthma, other respiratory problems or difficulties with additional organs of the body.
Global warming is the long-term warming of the planet’s overall temperature. Though this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years due to the burning of fossil fuels. As the human population has increased, so has the volume of fossil fuels burned. Fossil fuels include coal, oil, and natural gas, and burning them causes what is known as the “greenhouse effect” in Earth’s atmosphere.
The greenhouse effect is when the Sun’s rays penetrate the atmosphere, but when that heat is reflected off the surface cannot escape back into space. Gases produced by the burning of fossil fuels prevent the heat from leaving the atmosphere.
These greenhouse gasses are carbon dioxide, chlorofluorocarbons, water vapor, methane, and nitrous oxide. The excess heat in the atmosphere has caused the average global temperature to rise overtime, otherwise known as global warming.
Global warming has presented another issue called climate change. Sometimes these phrases are used interchangeably, however, they are different. Climate change refers to changes in weather patterns and growing seasons around the world. It also refers to sea level rise caused by the expansion of warmer seas and melting ice sheets and glaciers.
Glaciers are melting, sea levels are rising, cloud forests are dying, and wildlife is scrambling to keep pace. It has become clear that humans have caused most of the past century's warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases, their levels are higher now than at any time in the last 800,000 years.
We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. While many people think of global warming and climate change as synonyms, scientists use “climate change” when describing the complex shifts now affecting our planet’s weather and climate systems—in part because some areas actually get cooler in the short term.
We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. While many people think of global warming and climate change as synonyms, scientists use “climate change” when describing the complex shifts now affecting our planet’s weather and climate systems—in part because some areas actually get cooler in the short term.
Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other impacts. All of those changes are emerging as humans continue to add heat-trapping greenhouse gases to the atmosphere, changing the rhythms of climate that all living things have come to rely on.
Sunlight shines onto the Earth's surface, where the energy is absorbed and then radiate back into the atmosphere as heat. In the atmosphere, greenhouse gas molecules trap some of the heat, and the rest escapes into space. The more greenhouse gases concentrate in the atmosphere, the more heat gets locked up in the molecules.
Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This natural greenhouse effect is what keeps the Earth's climate livable. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit (33 degrees Celsius) cooler.
Human activity isn't the only factor that affects Earth's climate. Volcanic eruptions and variations in solar radiation from sunspots, solar wind, and the Earth's position relative to the sun also play a role. So do large-scale weather patterns such as But climate models that scientists use to monitor Earth’s temperatures take those factors into account. Changes in solar radiation levels as well as minute particles suspended in the atmosphere from volcanic eruptions, for example, have contributed only about two percent to the recent warming effect. The balance comes from greenhouse gases and other human-caused factors, such as land use change.
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