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Climate change is happening
Climate change is happening
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Environment

  1. 1. The biophysical environment is the biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development and evolution. The biophysical environment can vary in scale from microscopic to global in extent. It can also be subdivided according to its attributes. Examples include the marine environment, the atmospheric environment and the terrestrial environment. The number of biophysical environments is countless, given that each living organism has its own environment.
  2. 2. There are three types of environment: 1. Natural Environment 2. Social Environment 3. Physical Environment
  3. 3. The natural environment encompasses all living and non- living things occurring naturally on Earth or some region thereof. It is an environment that encompasses the interaction of all living species. Climate, weather, and natural resources that affect human survival and economic activity. The concept of the natural environment can be distinguished by components: • Complete ecological units that function as natural systems without massive civilized human intervention, including all vegetation, microorganisms, soil, rocks, atmosphere, and natural phenomena that occur within their boundaries and their nature. • Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water, and climate, as well as energy, radiation, electric charge, and magnetism, not originating from civilized human activity.
  4. 4. The physical environment refers to the physical components of the area in which youngsters grow, work, and play. The physical environment can be virtually anything concrete that children may encounter in their lives. Though physical in nature, the environment can influence young people's mental and emotional health as well as physical well-being. This is distinct from the emotional, cultural, or learning environments in which children find themselves.
  5. 5. The social environment, social context, sociocultural context or milieu refers to the immediate physical and social setting in which people live or in which something happens or develops. It includes the culture that the individual was educated or lives in, and the people and institutions with whom they interact. The interaction may be in person or through communication media, even anonymous or one-way, and may not imply equality of social status. Therefore, the social environment is a broader concept than that of social class or social circle.
  6. 6. Climate change is first and foremost an issue because people can’t even agree on whether or not it’s an issue in the first place. Before we even get into the solutions, we all need to come to the realization that yes, climate change is real and yes, it is affecting us in ways that we can see and feel. If you still believe that the freakish weather and heat waves we’ve been experiencing have nothing to do with climate change, you might want to ask your neighbour what he or she thinks because the majority of Americans now say they believe global warming is causing these incidents.
  7. 7. Deforestation, clearance or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a non-forest use. Examples of deforestation include conversion of forestland to farms, ranches, or urban use. Tropical rainforests is where the most concentrated deforestation occurs. About 30% of Earth's land surface is covered by forests. In temperate mesic climates, natural regeneration of forest stands often will not occur in the absence of disturbance, whether natural or anthropogenic. Furthermore, biodiversity after regeneration harvest often mimics that found after natural disturbance, including biodiversity loss after naturally occurring rainforest destruction.
  8. 8. 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 occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.
  9. 9. Each species has a role in our planet, and when one dies out, it can have catastrophic effects on the rest of us. We don’t want to get all “Butterfly Effect” on you but even a population dwindling can cause major problems for the human race. For example, with their role of pollination, the decline of the bee population has a direct effect on both the environment and food production. Currently, many other animals are in danger of becoming extinct, either from being forced out of their habitats by man or by climate change.
  10. 10. Climate change (are you seeing a trend here?) also contributes to another dangerous problem – melting polar ice-caps, which in turn causes rising sea levels. According to the NRCD, average temperatures in the Arctic region are rising twice as fast they are elsewhere and the ice is melting and rupturing. NASA satellite images reveal that the area of our permanent ice cover is shrinking at a rate of 9% every decade. At that rate, the Arctic could be totally ice-free in the summer season by the end of the century.
  11. 11. Along the coasts of heavily populated communities, scientists have found more and more dead zones – areas where depleted oxygen levels cannot support marine life. 146 dead zones were found in the world’s oceans, caused by high levels of chemicals in the waters. North America’s Gulf Coast has a high concentration of dead zones, which causes fish to become unable to reproduce. You might think that if you live on land, you won’t be affected by oceanic dead zones but if you eat seafood, seaweed, or care about air quality, you won’t want to ignore this issue.
  12. 12. 7. Ozone layer depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% in the total amount of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well- known stratospheric phenomena, there are also springtime polar tropospheric ozone depletion events.

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