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Global warming is the rise in temperature of the air and oceans globally. It is happening mainly because humans burn coal, oil, and natural gas; and cut down forests. Average temperatures today are about 1 °C (1.8 °F) higher than before people started burning a lot of coal around 1750.
En climatología, el calentamiento global o calentamiento mundial es el aumento a largo plazo de la temperatura atmosférica media del sistema climático de la Tierra debido a la intensificación del efecto invernadero.
Esta sección es un extracto de Calentamiento global. Cambio térmico en los últimos 50 años. Temperaturas promedio del aire en la superficie de 2011 a 2021 en comparación con el promedio de 1956 a 1976. Media global del cambio de temperatura superficial en 1880-2016, respecto a la media de 1951-1980.
Hace 1 día · Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth’s surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases.
- How does global warming work?Human activity affects global surface temperatures by changing Earth’s radiative balance—the “give and take” between what comes in during the day a...
- Where does global warming occur in the atmosphere?Global warming, the phenomenon of increasing average air temperatures near Earth’s surface over the past one to two centuries, happens mostly in th...
- Why is global warming a social problem?Continued global warming is expected to impact everything from energy use to water availability to crop productivity throughout the world. Poor cou...
- Where does global warming affect polar bears?Polar bears live in the Arctic, where they use the region’s ice floes as they hunt seals and other marine mammals. Temperature increases related to...
Las causas del calentamiento global, también llamados forzamientos externos, 1 son los mecanismos dominantes externos al sistema climático —pero no necesariamente externos a la Tierra— que causan el calentamiento global observado en el registro de temperaturas. 2 3 Las investigaciones se han centrado en las causas del calentamiento observa...
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