Final answer:
Scientists can prove that global warming is due to human activities because there are more carbon emissions than methane.
Step-by-step explanation:
Scientists can prove that global warming is due to human activities because there are more carbon emissions than methane.
Carbon dioxide and other greenhouse gases, primarily released by human activities such as burning fossil fuels, are increasing the concentration of these gases in the atmosphere. Methane, another greenhouse gas, is also released by human activities, but its concentration is lower compared to carbon dioxide. Therefore, the increase in carbon emissions is a strong indication of human activities being the main cause of global warming.
Carbon-14 is not directly related to global warming. It is an isotope of carbon used in radiocarbon dating, which is unrelated to climate change.
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