Global warming | Definition, Causes, Effects, Solutions, & Facts ...
2025年1月12日 · global warming, the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Climate scientists have since the mid-20th century gathered detailed observations of various weather phenomena (such as temperatures, precipitation, and storms) and of related influences on climate (such as ocean currents and the …
Encyclopedia Britannica | Britannica
The man. St. Nicholas’s existence is not attested by any historical document, so nothing certain is known of his life except that he was probably bishop of Myra.According to tradition, he was born in the Lycian seaport city of Patara. He was imprisoned and likely tortured by the Roman emperor Diocletian but was released under the rule of Constantine the Great.
Antarctica | History, Map, Climate, & Facts | Britannica
2 天之前 · Antarctica, the world’s southernmost continent, is almost wholly covered by an ice sheet and is about 5.5 million square miles (14.2 million square km) in size. It is divided into East Antarctica (largely composed of a high ice-covered plateau) and West Antarctica (an archipelago of ice-covered mountainous islands).
Mughal dynasty | Map, Rulers, Decline, & Facts | Britannica
2025年1月7日 · Mughal dynasty, Muslim dynasty of Turkic-Mongol origin that ruled most of northern India from the early 16th to the mid-18th century. After that time it continued to exist as a considerably reduced and increasingly powerless entity until the mid-19th century. The Mughal dynasty was notable for its more than two centuries of effective rule over much of India; for the …
Android | Definition, History, & Facts | Britannica
2025年1月6日 · Android, operating system for cellular telephones and tablet computers that was debuted by Google in 2007. In 2012 Android became the most popular operating system for mobile devices, surpassing Apple’s iOS, and as of 2020 …
September 11 attacks: Facts & Related Content - Encyclopedia …
September 11 attacks, series of airline hijackings and suicide attacks committed in 2001 by 19 militants associated with Islamic extremist group al-Qaeda against targets in the United States, the deadliest terrorist attacks on U.S. soil in U.S. history. Over 3,000 people died in the attacks and rescue efforts.
Temperature inversion | Definition & Facts | Britannica
temperature inversion, a reversal of the normal behaviour of temperature in the troposphere (the region of the atmosphere nearest Earth’s surface), in which a layer of cool air at the surface is overlain by a layer of warmer air. (Under normal conditions air temperature usually decreases with height.) Inversions play an important role in determining cloud forms, precipitation, and visibility.
Cultural globalization | Pros, Cons, Examples, Impact, & Factors ...
2024年12月21日 · cultural globalization, phenomenon by which the experience of everyday life, as influenced by the diffusion of commodities and ideas, reflects a standardization of cultural expressions around the world. Propelled by the efficiency or appeal of wireless communications, electronic commerce, popular culture, and international travel, globalization has been seen as …
Renewable energy | Types, Advantages, & Facts | Britannica
2025年1月13日 · In contrast, renewable energy sources accounted for nearly 20 percent of global energy consumption at the beginning of the 21st century, largely from traditional uses of biomass such as wood for heating and cooking.By 2015 about 16 percent of the world’s total electricity came from large hydroelectric power plants, whereas other types of renewable energy (such …
South Asia | Geography, Countries, Map, & History | Britannica
2025年1月16日 · South Asia is home to one of the world’s earliest known civilizations, the Indus civilization, and today is one of the most densely populated regions on the planet.Despite a history of ethnic, linguistic, and political fragmentation, the people of the subregion are unified by a common cultural and ethical outlook; a wealth of ancient textual literature in Sanskrit, Prākrit, …