One major cause of the circulation of waters in the oceans is the difference in the energy budget between the tropics and the poles (the thermohaline circulation).
A number of case histories, ranging across lake eutrophication, urban ozone levels, the restoration of ecosystems, the circulation of waters in the North Atlantic, and the invasion of exotic species, are used to construct a much more immediate sense of the nature of structural change and, therefore, the character of the challenge of generating environmental foresight.
It is primarily variations in temperature and density that drive the circulation of water in the oceans.
Then, he said, individual thermostats in each zone turn the heat on or off -- by starting or stopping the circulation of water to meet the particular needs of that zone.
He built a Woolf-type steam engine (1827), designed an improved paddle wheel (1829), and invented a means for the free circulation of water in boilers (1831), which led to the design of modern water-tube boilers.
Among things ascribed to this supersensible force are movements of needles toward a magnet, circulation of water in plant bodies, upward motion of fire, movement of mind, and movements of soul after death.
They are thus of crucial importance to primary productivity and to many aspects of the continuous circulation of water in the Earth's atmosphere (the hydrologic cycle)—i.e., evaporation, transpiration, condensation, precipitation, and runoff.
Because of its cost and fragility, glass plumbing (e.g., for aeration or circulation of water within an aquarium) is used only in cases in which low toxicity is essential.
Circulation of water masses occurs, basically, in a counterclockwise movement (north-to-south along the western shore), with a complex pattern developing farther south, where there are several subsidiary movements.
Several new studies link the pause with changes in the Pacific and in the trade winds that influence the circulation of water within it.Trade winds blow east-west at tropical latitudes.
In India, teakwood trees are killed by girdling (making a circular cut around the tree through the outer bark and cortex to interrupt the circulation of water and nutrients) and harvested several years later.
