Question

Describe, on a molecular level, how methane (CH4) absorbs infrared radiation. Then, explain why the emission of methane into Earth's atmosphere from a natural gas leak would have a significant effect on average global temperature.

Answer 1

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ᴍᴇᴛʜᴀɴᴇ (ᴄʜ4) ɪs 30 ᴛɪᴍᴇs sᴛʀᴏɴɢᴇʀ ᴛʜᴀɴ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ᴀs ᴀɴ ᴀʙsᴏʀʙᴇʀ ᴏғ ɪɴғʀᴀʀᴇᴅ ʀᴀᴅɪᴀᴛɪᴏɴ. ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴs ᴏғ ᴄғᴄ ɢᴀsᴇs ɪɴ ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ᴀʀᴇ ᴛʜᴇ ʜɪɢʜᴇsᴛ ᴏғ ᴀɴʏ ᴏғ ᴛʜᴇ ʜᴀʟᴏᴄᴀʀʙᴏɴs, ᴀɴᴅ ᴛʜᴇʏ ᴄᴀɴ ᴀʙsᴏʀʙ ᴍᴏʀᴇ ɪɴғʀᴀʀᴇᴅ ʀᴀᴅɪᴀᴛɪᴏɴ ᴛʜᴀɴ ᴀɴʏ ᴏᴛʜᴇʀ ɢʀᴇᴇɴʜᴏᴜsᴇ ɢᴀs.

ɪғ ᴍᴇᴛʜᴀɴᴇ ʟᴇᴀᴋs ɪɴᴛᴏ ᴛʜᴇ ᴀɪʀ ʙᴇғᴏʀᴇ ʙᴇɪɴɢ ᴜsᴇᴅ — ғʀᴏᴍ ᴀ ʟᴇᴀᴋʏ ᴘɪᴘᴇ, ғᴏʀ ɪɴsᴛᴀɴᴄᴇ — ɪᴛ ᴀʙsᴏʀʙs ᴛʜᴇ sᴜɴ's ʜᴇᴀᴛ, ᴡᴀʀᴍɪɴɢ ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ. ғᴏʀ ᴛʜɪs ʀᴇᴀsᴏɴ, ɪᴛ's ᴄᴏɴsɪᴅᴇʀᴇᴅ ᴀ ɢʀᴇᴇɴʜᴏᴜsᴇ ɢᴀs, ʟɪᴋᴇ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ.

Answer 2

Answer:

When methane is produced from non-fossil sources such as food and green waste , it can literally take carbon out of the air. ... However, methane that is released into the atmosphere before it is burned is harmful to the environment. Because it is able to trap heat in the atmosphere, methane contributes to climate change.

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