Global warming is a threat to our sustained existence on earth and is caused by greenhouse gasses, which is caused by burning fossil fuels for transport, electricity, and industry. The most predominant greenhouse gasses are carbon-dioxide (CO2) and methane (CH4).
Heat from the sun enters the atmosphere mostly in the form of UV rays (also as visible light), which the greenhouse gasses in the atmosphere allows through. However, earth reflects that heat as infrared rays, which is blocked by the greenhouse gasses.
South Africa’s energy production is heavily reliant on coal, the burning of which results in emissions of greenhouse gasses. The sun can be used as an alternative source of energy in solar solutions, which do not result in greenhouse gasses.
The average classroom uses enough energy to generate more than 1000 kg of CO2 per year. Through the installation of solar panels, we have offset the electricity used by the classroom. In addition to renewable energy sources, more efficient use of electricity also reduces greenhouse gasses.
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