"How to heal the world" Ana SeguÍ hernando

  • The environment. Environment is living things and what is around them. It can be living or non-living things. It includes physical, chemical and other natural forces. Living things do not simply exist in their environment. They constantly interact with it. Organisms change in response to conditions in their environment. In it there are many interactions between plants, animals, soil, water, temperature, light and other living and non-living things. The word "environment" is used to talk about many things. People in differents fields of knowledge (like history, geography or biology) use the word differently. An electromagnetic environment is the radio waves and other radiotion and magnetic fields. The galactic environment refers condition between the stars. In phycology and medicine a person's environment is the people, physical things, places and events that the person lives with. The environment affects the person's behavior. It affects the person's body, mine and heart.

Types of environment. The five main types of environments, or biomes, in the world are: the aquatic, forest, desert, grassland and tundra biomes. Each of these can be found in many areas around the world and contribute to the world's ecosystem.

The aquatic environments are found all over the world. Roughly 75 percent of the Earth is covered by water, and all of this water is part of an acuatic environment. The aquatic biome is further divided into saltwater oceans and freshwater environments, such as rivers and lakes.

Forest biomes are characterized by largue trees and vegetation. They can be found in cold and warm temperatures around the world. These environments are important to the Earth because they release oxygen into the atmosphere and capture excess carbon dioxide.

Deserts are any type of environment that receives less than 10 inches of precipitation each year. They can be very hot and sandy or very cold and icy.

Grasslands are large biomes characterized by huge open areas that receive between 10 and 30 inches of precipitation per year. These areas are covered mostly by grass and have few trees and other types of vegetation. They are home to wide variety of animals that use the grass for food.

Tundra is the coldest biome of all of the different environments. Tundras have long, cold winters and very shorts summers.

The pollution. Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances / energies or naturally ocurring contaminants. Pollution is often classed as point source or noinpoint pollution. The major forms of pollution are listed below along with the particular contaminant relevante to each of them:

Visual pollution, which can refer to the presence of overhead power lines, motorway billboards, scarred landforms (as from strip minig), open storage of trash, municipal solid waste or space debris. It is an aesthetic issue and refers to the impacts of pollution that impair one's ability to enjoy a view. Visual pollution disturbs the visual areas of people by creating negative changes in the natural environment.

Air pollution, the release of chemicals and particulates into the atmosphere. Common gaseous pollutants include carbon monoxide, sulfur dioxide, and nitrogen oxides produced by industry and motor vehicles. Photochemical ozone and smog are created as nitrogen oxides and hydrocarbons react to sunlight. Particulate matter, or fine dust is characterized by their micrometre.

Light pollution, also known as photopollution or luminous pollution, is excessive, misdirected or obtrusive artificial light. As a major sude-effect of urbanization, it is blamed for compromising health, disrupting ecosystems and spoiling aesthetic environments.

Water pollution, by the discharge of wastewater from commercial and industrial waste into surface waters; discharges of untreated domestic sewage, and chemical contaminants, such as chlorine, from treated sewage; release of waste and contaminants into surface runoff flowing to surface waters (which may contain chemical fertilizers and pesticides); waste disposal and leaching into groundwater; eutrophication and littering.

Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobotic chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals, or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons, solvents, pesticides, lead and other heavy metals. Contamination is correlated with the degree of industralization and intensity of chemical usage.

Plastic pollution involves the accumulation of plastic products in the environment that adversely affects wildlife, wildlife habitat, or humans. Plastics that act as pollutants are categorized into micro-, meso- or macroderbis, based on size. The prominence of plastic pollution is correlated with plastics being inexpensive and durable, which lends to high levels of plastics used by humans. However, it is slow to degrade.

Litter consists of waste products that have been disposed improperly, without consent, at an inappropiate location. Litter can also be used as a verb. To litter means to drop and leave objects, often man-made, such as aluminum cans, cardboard boxes or plastic bottles on the ground and leave them there indefinitely or for others to dispose of as opposed to disposing of them properly.

Noise pollution, which encompases roadway noise, aircraft noise, industrial noise as well as high-intensity sonar. You can called it noise disturbance too. The excessive noise is what may harm the activity or balance of human or animal life. The source of most outdoor noise worldwide is mainly caused by machines and transportation systems, motor vehicles, aircraft, and trains. Outdoor noise is summarized by the word environmental noise. Poor urban planning may give rise to noise pollution.

Radioactive contamination, also called radiologic contamination, is the deposition of, or presence of radioactive substances on surfaces or whitin solids, liquids or gases, where their presence is unintended or undesirable. Contamination may affect a person, a place, an animal, or an object such as clothing.

Thermal pollution, is a temperature change in natural water biodes caused by human influence, such as use of water as coolant in a power plant. When water used a coolant is returned to the natural environment at a higher temperature, the change in temperature decreases oxygen supply and affects ecosystem composition.

¿What is the eutrophication? The eutrophication is an increase in chemical nutrients, typically compounds containing nitrogen or phosphorus, in an ecosystem. It can result in an increase in the ecosystem's primary productivity, and further effects including lack of oxygen and severe reductions in water quality, fish, and other animals population.

Carbon dioxide, while vital for photosyntesis, is sometimes referred to as pollution, because raised levels of the gas in the atmosphere are affecting the Earth's climate. Disruption of the environment can also highlight the connection between areas of pollution that would normally be classified separately, such as those of water and air. Recent studies have investigated the potential for long-term rising levels of atmospheric carbon dioxide to cause slight but critical increases in the acidity of ocean waters, and the possible effects of this on marine ecosystems.


Created with images by mobinovyc - "nature forest trees" • Moyan_Brenn - "Desert" • Pexels - "clouds colorful colourful" • tpsdave - "tibet landscape mountains"

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