What is Global Warming?

We always hear the term ‘global warming’ everywhere, but what is it really in simple terms? What are the causes of it and why do we care?

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All around the world, people can feel that our weather nowadays is getting warmer and warmer. This phenomenon is called global warming, the gradual heating or increase in temperature of the Earth’s surface. Scientists measure the average temperature of the Earth yearly, shown in the graph below from www.climate.gov, and data really show the warming of the Earth.

Causes of global warming

Global warming is caused by the phenomenon called Greenhouse Effect, where certain gases, collectively called greenhouse gases such as carbon dioxide, gets emitted from our cars and power plants and stays in the Earth’s atmosphere. When the heat from the sun hits the Earth’s surface, these greenhouse gases trap this heat and causes the warming of the Earth. That is why we want to reduce the emission of carbon dioxide from our cars and power plants.

Effects of global warming

Because of global warming, our ice caps at the north and south poles are melting into the ocean and our sea level is steadily increasing. This is why, in the future, our coastal cities such as Manila and Cebu will be permanently under the water. That is, if we don’t do something to fight global warming.

What you can do

We need to reduce our emission of carbon dioxide from our cars. Reduce our use of cars. Use public transportation or do carpooling if possible. Support energy-efficient and low-emission cars.
 
We need to reduce our emission of carbon dioxide from our power plants. Conserve electricity from our homes. Turn off lights and appliances that are not being used. Limit your use of air conditioners and open your windows for natural cooling. Support energy-efficient or inverter-type appliances. Support eco-friendly products.
 
Our small individual efforts matter - a lot.