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Download Atmosphere: Air Pollution and Its Effects (Our Fragile by Dana Desonie PDF

By Dana Desonie

Earth's surroundings helps and protects all of its existence, giving the planet its blue skies, gentle temperatures, and climate. yet humans use the ambience for an additional function: as a unload for waste gases and debris. pollution obscures vistas, damages ecosystems, and compromises human well-being. mixed with water within the surroundings, air pollution create acid rain. within the top surroundings, air pollution harm the ozone layer, which protects existence from the sun's destructive rays. extra emissions of greenhouse gases like carbon dioxide and methane push international temperatures larger, growing worldwide warming. whereas a few toxins are effectively regulated, as inhabitants grows and industries extend, extra in depth ideas are had to take care of the various varieties of pollution and its results. This provocative publication tackles those matters in a simple demeanour and indicates readers what they could do to assist preserve our planet's surroundings.

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If a city is south of the jet stream, it will be under subtropical air; if it is north of the jet stream, it will be under polar air. At the transition between these two zones, the weather 33 34 Atmosphere is stormy, with the possibility of thunderstorms and tornadoes. The jet stream directs the movement of storms; much weather forecasting involves predicting the jet streams’ location and flow. Pilots of eastbound aircraft like the jet stream because it speeds them along, allowing them to save fuel.

The frequency and intensity of the aurora increases during times of intense sunspot activity and solar storms because the solar wind is denser, travels faster, and carries more energy. The Earth’s Energy Balance The amount of energy entering the Earth system from the Sun is nearly equal to the amount of energy radiating away from the planet. Solar energy arrives at the top of the Earth’s atmosphere as UV or visible light. About 50% of this energy is absorbed, scattered, or reflected by clouds; 3% is reflected by the Earth’s surface; and 47% The Motions of the Atmosphere The fate of incoming solar radiation in the atmosphere and at the Earth’s surface.

Almost all of the weather found at the planet’s surface is due to the vertical movement of air in the troposphere. The stratosphere rises from the top of the troposphere to about 30 miles (45 km). Since this layer is heated by the Sun’s UV rays, it gets warmer with increasing proximity to the Sun. The warm air of the upper stratosphere “floats” on the cooler air of the lower stratosphere, since it is less dense. With warmer air above cooler air, the stratosphere is very stable vertically. This layer usually experiences very little turbulence, which is why commercial airliners fly at this level.

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