You leave your footprints when you walk on sand There is a term “Carbon Footprint”.
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ᴛʜᴇ ᴛᴇʀᴍ ᴄᴀʀʙᴏɴ ꜰᴏᴏᴛᴘʀɪɴᴛ ɪꜱ ʜᴏᴡ ᴍᴜᴄʜ ᴄᴀʀʙᴏɴ ɢᴏᴇꜱ ɪɴᴛᴏ ᴛʜᴇ ᴀɪʀ ʙᴇᴄᴀᴜꜱᴇ ᴏꜰ ꜱᴏᴍᴇᴛʜɪɴɢ ᴅᴏɴᴇ ʙʏ ᴘᴇᴏᴘʟᴇ ᴏʀ ᴛʜᴀᴛ ɪꜱ ɴᴏᴛ ᴅᴏɴᴇ ʙʏ ɴᴀᴛᴜʀᴇ. ᴅᴏɪɴɢ ꜱᴏᴍᴇᴛʜɪɴɢ ᴛʜᴀᴛ ʙᴜʀɴꜱ ꜰᴜᴇʟ ᴡɪʟʟ ᴍᴀᴋᴇ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ɢᴀꜱ (ᴄᴏ2). ɪᴛ ɪꜱ ᴛʜᴇ ᴛᴏᴛᴀʟ ᴀᴍᴏᴜɴᴛ ᴏꜰ ɢʀᴇᴇɴʜᴏᴜꜱᴇ ɢᴀꜱᴇꜱ ᴘʀᴏᴅᴜᴄᴇᴅ ᴛᴏ ᴅɪʀᴇᴄᴛʟʏ ᴀɴᴅ ɪɴᴅɪʀᴇᴄᴛʟʏ ꜱᴜᴘᴘᴏʀᴛ ʜᴜᴍᴀɴ ᴀᴄᴛɪᴠɪᴛɪᴇꜱ, ᴜꜱᴜᴀʟʟʏ ᴇxᴘʀᴇꜱꜱᴇᴅ ɪɴ ᴇQᴜɪᴠᴀʟᴇɴᴛ ᴛᴏɴꜱ ᴏꜰ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ. ᴊᴜꜱᴛ ᴀꜱ ᴡᴀʟᴋɪɴɢ ᴏɴ ᴛʜᴇ ꜱᴀɴᴅ ʟᴇᴀᴠᴇꜱ ᴀ ꜰᴏᴏᴛᴘʀɪɴᴛ, ʙᴜʀɴɪɴɢ ꜰᴜᴇʟ ʟᴇᴀᴠᴇꜱ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ɪɴ ᴛʜᴇ ᴀɪʀ, ᴡʜɪᴄʜ ɪꜱ ᴄᴀʟʟᴇᴅ ᴀ ᴄᴀʀʙᴏɴ ꜰᴏᴏᴛᴘʀɪɴᴛ. ᴛᴏᴛᴀʟ ᴄᴀʀʙᴏɴ ꜰᴏᴏᴛᴘʀɪɴᴛ/ᴇᴍɪꜱꜱɪᴏɴ ᴡᴏᴜʟᴅ ɪɴᴄʟᴜᴅᴇ ᴇɴᴇʀɢʏ ᴇᴍɪꜱꜱɪᴏɴꜱ ꜰʀᴏᴍ ʜᴜᴍᴀɴ ᴀᴄᴛɪᴠɪᴛɪᴇꜱ - ᴛʜᴀᴛ ɪꜱ, ꜰʀᴏᴍ ʜᴇᴀᴛ, ʟɪɢʜᴛ, ᴘᴏᴡᴇʀ ᴀɴᴅ ʀᴇꜰʀɪɢᴇʀᴀᴛɪᴏɴ ᴀɴᴅ ᴀʟʟ ᴛʀᴀɴꜱᴘᴏʀᴛ ʀᴇʟᴀᴛᴇᴅ ᴇᴍɪꜱꜱɪᴏɴꜱ ꜰʀᴏᴍ ᴄᴀʀꜱ, ꜰʀᴇɪɢʜᴛ ᴀɴᴅ ᴅɪꜱᴛʀɪʙᴜᴛɪᴏɴ.
ᴛʜᴇ ᴡᴏʀᴅꜱ "ᴄᴀʀʙᴏɴ ꜰᴏᴏᴛᴘʀɪɴᴛ" ᴀʀᴇ ᴏꜰᴛᴇɴ ꜱᴇᴇɴ ɪɴ ᴛʜᴇ ɴᴇᴡꜱ. ᴛʜᴇʏ ᴀʀᴇ ᴜꜱᴇᴅ ᴡɪᴛʜ ᴛʜᴇ ᴡᴏʀᴅ ꜱᴜꜱᴛᴀɪɴᴀʙɪʟɪᴛʏ, ᴡʜɪᴄʜ ᴍᴇᴀɴꜱ ᴛʜᴀᴛ ᴡᴇ ᴄᴀɴ ᴋᴇᴇᴘ ᴅᴏɪɴɢ ꜱᴏᴍᴇᴛʜɪɴɢ ᴡɪᴛʜᴏᴜᴛ ᴍᴀᴋɪɴɢ ꜱᴏᴍᴇᴛʜɪɴɢ ʙᴀᴅ ʜᴀᴘᴘᴇɴ. ᴛʜᴀᴛ ɪꜱ, ɪꜰ ᴛʜᴇʀᴇ ɪꜱ ᴛᴏᴏ ᴍᴜᴄʜ ᴏꜰ ᴀ ᴄᴀʀʙᴏɴ ꜰᴏᴏᴛᴘʀɪɴᴛ, ᴛʜᴇɴ ᴛʜᴇʀᴇ ɪꜱ ɴᴏ ꜱᴜꜱᴛᴀɪɴᴀʙɪʟɪᴛʏ. ᴘᴇᴏᴘʟᴇ ᴀɴᴅ ʙᴜꜱɪɴᴇꜱꜱᴇꜱ ᴀʀᴇ ᴏꜰᴛᴇɴ ᴀꜱᴋᴇᴅ ᴛᴏ ᴛʜɪɴᴋ ᴀʙᴏᴜᴛ ʜᴏᴡ ᴍᴜᴄʜ ᴄᴀʀʙᴏɴ ᴛʜᴇʏ ᴀʀᴇ ᴘᴜᴛᴛɪɴɢ ɪɴᴛᴏ ᴛʜᴇ ᴀɪʀ, ᴀɴᴅ ʜᴏᴡ ᴛʜɪꜱ ᴄʜᴀɴɢᴇꜱ ᴛʜᴇ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ᴀɴᴅ ᴍᴀʏʙᴇ ᴄᴀᴜꜱᴇꜱ ɢʟᴏʙᴀʟ ᴡᴀʀᴍɪɴɢ. ᴛʜɪꜱ ɪꜱ ᴏꜰᴛᴇɴ ꜱᴀɪᴅ ᴀʙᴏᴜᴛ ᴛʀᴀᴠᴇʟɪɴɢ ʙʏ ᴀɪʀᴘʟᴀɴᴇ ᴏʀ ʙʏ ᴄᴀʀ, ʙᴇᴄᴀᴜꜱᴇ ʙᴜʀɴɪɴɢ ꜰᴜᴇʟ ᴍᴀᴋᴇꜱ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ɢᴀꜱ.