Question

what is global warming ????​

Answer 1

Answer:

ɢʟᴏʙᴀʟ ᴡᴀʀᴍɪɴɢ ɪs ᴛʜᴇ ʟᴏɴɢ-ᴛᴇʀᴍ ʜᴇᴀᴛɪɴɢ ᴏғ ᴇᴀʀᴛʜ's ᴄʟɪᴍᴀᴛᴇ sʏsᴛᴇᴍ ᴏʙsᴇʀᴠᴇᴅ sɪɴᴄᴇ ᴛʜᴇ ᴘʀᴇ-ɪɴᴅᴜsᴛʀɪᴀʟ ᴘᴇʀɪᴏᴅ (ʙᴇᴛᴡᴇᴇɴ ᴀɴᴅ ) ᴅᴜᴇ ᴛᴏ ʜᴜᴍᴀɴ ᴀᴄᴛɪᴠɪᴛɪᴇs, ᴘʀɪᴍᴀʀɪʟʏ ғᴏssɪʟ ғᴜᴇʟ ʙᴜʀɴɪɴɢ, ᴡʜɪᴄʜ ɪɴᴄʀᴇᴀsᴇs ʜᴇᴀᴛ-ᴛʀᴀᴘᴘɪɴɢ ɢʀᴇᴇɴʜᴏᴜsᴇ ɢᴀs ʟᴇᴠᴇʟs ɪɴ ᴇᴀʀᴛʜ's ᴀᴛᴍᴏsᴘʜᴇʀᴇ.

Answer 2

Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

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