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~ <h5> Carbon dioxide (CO<sub>2</sub>) is an important compound for life. Plants use CO<sub>2</sub> in photosynthesis to make sugars and all organisms produce CO<sub>2</sub> in respiration when they metabolize sugars using oxygen (O<sub>2</sub>). The CO<sub>2</sub> molecule is linear and is commonly discussed as a product of combustion reactions. Furthermore, CO<sub>2</sub> is a greenhouse gas that most likely causes an increase in average global temperatures which in turn causes polar and glacial ice melting, sea level rises, more energetic storms, warming and more acidic oceans, species extinctions, etc.</h5>
