Q.1) Gather information on effects of air pressure.
Answers
Explanation:
This is the first report of a human effect on barometers, rather than thermometers. Most climate scientists agree that greenhouse gases produced by human activity have warmed the planet over the past century. Nathan Gillett of the University of Victoria, Canada, and his colleagues have shown that there is also a greenhouse effect on air pressure.
Changes in air pressure could have a big effect on climate. Air pressure controls the atmosphere's circulation, and therefore influences how moisture moves. Changes in circulation can alter rainfall, temperature, winds and storminess.
For instance, changes in an air-circulation pattern called the North Atlantic Oscillation have been implicated in recent increases in rainfall over Scotland, reduced rain in Spain, and a drop in the number of cold snaps in France.
These trends, and their impact on climate, could be stronger than we thought. Computer simulations of climate have underestimated the size of the change in air pressure, the researchers found.
Answer:
ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ᴘʀᴇssᴜʀᴇ ɪs ᴀɴ ɪɴᴅɪᴄᴀᴛᴏʀ ᴏғ ᴡᴇᴀᴛʜᴇʀ. ᴡʜᴇɴ ᴀ ʟᴏᴡ-ᴘʀᴇssᴜʀᴇ sʏsᴛᴇᴍ ᴍᴏᴠᴇs ɪɴᴛᴏ ᴀɴ ᴀʀᴇᴀ, ɪᴛ ᴜsᴜᴀʟʟʏ ʟᴇᴀᴅs ᴛᴏ ᴄʟᴏᴜᴅɪɴᴇss, ᴡɪɴᴅ, ᴀɴᴅ ᴘʀᴇᴄɪᴘɪᴛᴀᴛɪᴏɴ. ʜɪɢʜ-ᴘʀᴇssᴜʀᴇ sʏsᴛᴇᴍs ᴜsᴜᴀʟʟʏ ʟᴇᴀᴅ ᴛᴏ ғᴀɪʀ, ᴄᴀʟᴍ ᴡᴇᴀᴛʜᴇʀ. ᴀ ʙᴀʀᴏᴍᴇᴛᴇʀ ᴍᴇᴀsᴜʀᴇs ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ᴘʀᴇssᴜʀᴇ, ᴡʜɪᴄʜ ɪs ᴀʟsᴏ ᴄᴀʟʟᴇᴅ ʙᴀʀᴏᴍᴇᴛʀɪᴄ ᴘʀᴇssᴜʀᴇ.