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Air pollution is the introduction of airborne chemicals, particulate matter or biological materials that cause harm or discomfort to organisms. [53] The population growth , industrialization and motorization of human societies have significantly increased the amount of airborne pollutants in the Earth's atmosphere, causing noticeable problems ...
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To convert from the usual ppmv units to ppm mass (abbreviated as ppmm, or ppm(m)), multiply by the ratio of the molar mass of CO 2 to that of air, i.e. times 1.52 (44.01 divided by 28.96). The first reproducibly accurate measurements of atmospheric CO 2 were from flask sample measurements made by Dave Keeling at Caltech in the 1950s. [ 31 ]
The two models and the data that support them can be reconciled by large-scale recycling of the continental crust, particularly during the early stages of Earth's history. [55] New continental crust forms as a result of plate tectonics, a process ultimately driven by the continuous loss of heat from Earth's interior.
Over 95 million Americans are on alert for brutal cold temperatures in the coming days as arctic air plunges south across the country -- and a storm this weekend is expected to dump snow on ...
The term data-driven is a neologism applied to an activity which is primarily compelled by data over all other factors. [citation needed] ...
A view shows damages in the wreckage of an Azerbaijan Airlines' Embraer passenger plane that crashed near the city of Aktau, Kazakhstan December 25, 2024 in this screengrab from a video obtained ...
BMW recalled certain 2023-2024 X1, X5, X6, X7, XM, 530i, i5, 740i, 760i, i7, and 750e vehicles.. The NHTSA report said that the integrated brake system may malfunction and result in a loss of ...