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causes of the greenhouse effect
Greenhouse leaves harmful impact such as global warming
These gases act like the glass in a greenhouse, which does not allow the inner heat to escape. When sunlight reaches the surface of the earth, much of its energy is transformed into heat energy. The greenhouse gases trap infrared radiation and send it back to earth. Carbon dioxide, methane, and nitrous oxide are important greenhouse gases.
In addition to greenhouse gases e. This is called global warming. Due to global warming, polar ice caps and glaciers are melting faster than the time taken for new ice layers to form.
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Seawater is also expanding causing sea levels to rise. Due to melting glaciers, rivers overflow and cause floods. The CO 2 forms a layer around the earth like an envelope. It allows the heat rays of the sun to pass through it and reach up to the Earth. The normal concentration of the CO 2 layer retains enough heat to keep the atmosphere warm. So, a normal concentration of CO 2 is necessary and beneficial for keeping the temperature warm.
Why is the greenhouse effect becoming stronger?
Otherwise, the earth would have been uninhabitable. CO 2 is not an air pollutant. Rather, it is essential to gas for plants as O 2 is essential for animals. Plants CO 2 in the photosynthesis process and produce O 2.
While animals use O 2 in respiration and give out CO 2. In this way, a natural balance exists between these essential gases as represented here. But this balance is being disturbed emitting more and more carbon dioxide into the air through different human activities.
How do greenhouse gases cause extreme weather?
Although, carbon dioxide is not a poisonous gas, yet its increasing concentration due to here burning of fossil fuels in different human activities is alarming. CO 2 in the atmosphere acts like a glass wall of a greenhouse. It allows ultraviolet radiations to pass through it but does not allow the infrared radiations to pass through it. It helps to stop the surface from cooling down at night. Therefore, the grdenhouse temperature of the surface gradually increases.]
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