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Radiative forcing is defined in the IPCC Sixth Assessment Report as follows: "The change in the net, downward minus upward, radiative flux (expressed in W/m 2) due to a change in an external driver of climate change, such as a change in the concentration of carbon dioxide (CO 2), the concentration of volcanic aerosols or the output of the Sun." [3]: 2245
The weight of an object on Earth's surface is the downwards force on that object, given by Newton's second law of motion, or F = m a (force = mass × acceleration). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the ...
Such an increase could be caused by a large asteroid or comet impact, a large supervolcanic eruption, a large submarine flood basalt, or "incredible" global warming. [2] There is some speculation that a series of hypercanes resulting from the impact of a large asteroid or comet contributed to the demise of the non-avian dinosaurs . [ 3 ]
It deposits drier air, contributing to the world's great deserts. The horse latitudes, or torrid zone, [20] is roughly at the 30th parallel and is the source of warm high pressure systems. As the hot air closer to the equator rises, it cools, losing moisture; it is then transported poleward where it descends, creating the high-pressure area. [21]
A Sudden Stratospheric Warming miles above the North Pole (a natural event) with a warmed Arctic due to climate change piggy backing on that pattern = unstable PV & wavy extreme jet stream, with ...
Polar vortex and weather impacts due to stratospheric warming [clarify] Polar vortices are weakest during summer and strongest during winter. Extratropical cyclones that migrate into higher latitudes when the polar vortex is weak can disrupt the single vortex creating smaller vortices (cold-core lows) within the polar air mass. [18]
The compounding effects from floods, storm surge, and terrestrial flooding (rivers) are projected to increase due to global warming. [11] There is currently no consensus on how climate change will affect the overall frequency of tropical cyclones. [1] A majority of climate models show a decreased frequency in future projections. [12]
For a huge chunk of the U.S., you may have thought it couldn’t get much colder during the last month, but Earth as a whole just experienced its warmest January on record, according to a new ...