Assertion: carbon dioxide | /r/HasProperty | released through burning fossil fuels
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Source sentences:
text: Carbon dioxide (CO 2 ) is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration and volcanic eruptions.
text: However, carbon dioxide is also released by decaying organic matter, geological processes, and the burning of fossil fuels.