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Maine agriculture is impacted by the changing climate that includes more hot days, droughts, increased flooding, and longer growing season. Some crops and farms could benefit from a longer growing season and more carbon dioxide in the air that increases plant growth. The rising temperatures are affecting the maple sugar season. [1]
A study by the Union of Concerned Scientists found that Maine’s former expectation of a few days per year with a heat index above 90 degrees will now rise to between seven and 21 days a year ...
Maine, Vermont, New Hampshire, and most of interior western Massachusetts have a humid continental climate (Dfb under the Köppen climate classification). In this region, the winters are long, cold, and heavy snow is common, courtesy of both coastal and continental low pressure systems. Most locations in this region receive between 60 and 120 ...
Tropical and equatorial air masses are hot as they develop over lower latitudes. Tropical air masses have lower pressure because hot air rises and cold air sinks. Those that develop over land (continental) are drier and hotter than those that develop over oceans, and travel poleward on the southern periphery of the subtropical ridge. [5]
Last year, the U.S. saw the greatest number of heat waves — abnormally hot weather lasting more than two days — since 1936. Chicago broke a 1957 temperature record Monday with a high of 97 ...
The downward-moving exterior is caused by colder air being displaced at the top of the thermal. The size and strength of thermals are influenced by the properties of the lower atmosphere (the troposphere). When the air is cold, bubbles of warm air are formed by the ground heating the air above it and can rise like a hot air balloon.
The hot, rising air would then escape through windows near the ceiling to create a natural airflow. Architects also incorporated front porches onto houses to give homeowners some relief from the heat.
At the heat source of a system of natural circulation, the heated fluid becomes lighter than the fluid surrounding it, and thus rises. At the heat sink, the nearby fluid becomes denser as it cools, and is drawn downward by gravity. Together, these effects create a flow of fluid from the heat source to the heat sink and back again.