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There is also a higher risk of sunburn due to the reduced blocking of ultraviolet by the thinner atmosphere. [50] [51] The amount of UVA increases approximately 9% with every increase of altitude by 1,000 metres (3,300 ft). [52] Symptoms of sunburn include red or reddish skin that is hot to the touch or painful, general fatigue, and mild dizziness.
Humans inhabit hot climates, both dry and humid, and have done so for millions of years. Selective use of clothing and technological inventions such as air conditioning allows humans to live in hot climates. One example is the Chaamba, who live in the Sahara Desert. They wear clothing that traps air in between skin and the clothes, preventing ...
Map of the world's biodiversity hot spots, all of which are heavily threatened by habitat loss and degradation. A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.
Xenon gas is an unreactive gas that makes up 0.086 parts per million by volume of the air that we breathe. It has long been used in general anesthesia , and studies have shown that it may also ...
One Harvard study taking into account more than 14,000 people over 50 found that people more satisfied with the aging process were at a lower risk for diabetes, stroke, cancer and heart disease.
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]
About 900 people die of norovirus every year (mostly patients over the age of 65), and 109,000 people are hospitalized with it, reports the American Medical Association.
The warm air from the cluster replaces the cool air on the ground. The effect is similar to someone blowing down on a puddle of water. On 4 March 1990, the National Weather Service in Goodland, Kansas , detected a system that had weakened, containing light rain showers and snow showers.