Good morning ladies and gentlemen and welcome to today’s public service announcement. In today’s PSA we will focus on green house gases/pollution. This topic has been becoming very serious and important to us. Noticeable effects are happening because of these two things and I am here to open your eyes and raise awareness. We need to change our behavior before we destroy the earth.
First I will focus on pollution; pollution is the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects. There are four types of pollution. They are air pollution, water pollution, noise pollution and soil pollution, however I would not be talking about all though. The first I will talk about is air pollution. Air pollution refers to the release of pollutants into the air that are detrimental to human health and the planet as a whole. Most of this pollution comes from the energy we use. Fossil fuel plays a big role. For example the exhaust that comes out our car from gas. This causes pollution and hurts the ozone layer which protects us from the sun. If we have no protection it could lead to very bad things, also the exhaust from factories. This also pollutes the air. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems. In turn, this can lead to public health problems for people living downstream. They may use the same polluted river water for drinking or bathing or irrigation. Water pollution is the leading worldwide cause of death and disease. As you can see we really need to stop polluting our earth before we don’t have one.
Now I will discuss greenhouse gases. A greenhouse gas is a gas that contributes to the greenhouse effect by absorbing infrared radiation, like carbon dioxide and chlorofluorocarbons’ the greenhouse effect is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a temperature above what it would be without its atmosphere. If a planet’s atmosphere contains radioactively active gases the atmosphere will radiate energy in all directions. Part of this radiation is directed towards the surface, warming it. This would also contribute to the breaking of the ozone layer. If it breaks and since it is breaking it can cause increases in sunburn, skin cancer, cataracts, damage to plants, and reduction of plankton populations in the oceans may result from the increased UV exposure if there was no ozone layer in the atmosphere. Overall we just need to take care of our earth.
To conclude this PSA we humans have to take action and stop pretending like these situations are not present. If we don’t start doing something now it might be too late in the future. This is a cause to why humans are dying so why aren’t we acting like we care. We need to step up and make a change.
