Search research articles

ACERCA DE JoVE

Visión General Liderazgo Blog Centro de Ayuda JoVE

AUTORES

Proceso de Publicación Consejo Editorial Alcance y Políticas Revisión por Pares Preguntas Frecuentes Enviar

BIBLIOTECARIOS

Testimonios Suscripciones Acceso Recursos Consejo Asesor de Bibliotecas Preguntas Frecuentes

INVESTIGACIÓN

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archivo

EDUCACIÓN

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Centro de Recursos para Profesores Sitio de Profesores

Términos y Condiciones de Uso

Política de Privacidad

Videos de Conceptos Relacionados

Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

Microbes and Climate Change

Microbes and Climate Change

Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

The Sulfur Cycle

The Sulfur Cycle

Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...

Phase Transitions: Sublimation and Deposition

Phase Transitions: Sublimation and Deposition

Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...

What is Weather?

What is Weather?

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por

Same author

Reduced Complexity Model Intercomparison Project Phase 2: Synthesizing Earth System Knowledge for Probabilistic Climate Projections.

Earth's future·2021

Same author

Fluxes of Atmospheric Greenhouse-Gases in Maryland (FLAGG-MD): Emissions of Carbon Dioxide in the Baltimore, MD-Washington, D.C. area.

Journal of geophysical research. Atmospheres : JGR·2020

Same author

The Convective Transport of Active Species in the Tropics (CONTRAST) Experiment.

Bulletin of the American Meteorological Society·2018

Same author

Quantifying stratospheric ozone in the upper troposphere with in situ measurements of HCl.

Science (New York, N.Y.)·2004

Same author

The detection of large HNO3-containing particles in the winter Arctic stratosphere.

Science (New York, N.Y.)·2001

Same author

Removal of Stratospheric O3 by Radicals: In Situ Measurements of OH, HO2, NO, NO2, ClO, and BrO.

Science (New York, N.Y.)·1994

Search research articles

Video Experimental Relacionado

Updated: Jul 11, 2026

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Published on: November 18, 2018

El cambio en la composición de la estratosfera global.

M B McElroy, R J Salawitch

Science (New York, N.Y.)

|February 10, 1989

Resumen

La actividad humana impacta la química de la estratosfera, en particular el agotamiento del ozono (O3) sobre la Antártida debido a los halocarburos. Se necesitan reducciones urgentes de emisiones para revertir este daño.

Área de la Ciencia:

Química de la atmósfera La química de la atmósfera
Ciencia de la estratosfera Ciencia de la estratosfera.
Ciencias del medio ambiente Ciencias del medio ambiente.

Sus antecedentes:

Las actividades humanas han influido significativamente en la química estratosférica.
Los niveles de ozono (O3) son un indicador clave de la salud de la estratosfera.
Comprender los mecanismos de agotamiento de la capa de ozono es crucial para la protección del medio ambiente.

Objetivo del estudio:

Para revisar la comprensión actual de la química estratosférica.
Para evaluar la influencia de la actividad humana en la estratosfera.
Investigar las causas y la persistencia del agotamiento del ozono.

Principales métodos:

Revisión de la literatura y los modelos científicos existentes.

Más Videos Relacionados

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Published on: June 13, 2020

Videos de Experimentos Relacionados

Last Updated: Jul 11, 2026

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber

Published on: November 18, 2018

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Published on: June 13, 2020

Comparación de las predicciones del modelo con las mediciones atmosféricas.

Análisis de las vías de reacción química y ciclos catalíticos.

Principales resultados:

Los modelos generalmente están de acuerdo con las mediciones estratosféricas de latitudes medias, excepto para el ozono de gran altitud.
Las tasas de pérdida de ozono exceden las tasas de producción a 40 km, lo que sugiere una fuente de ozono no identificada.
El agotamiento del ozono antártico es causado principalmente por los radicales halógenos y las nubes estratosféricas polares.

Conclusiones:

Es probable que el fenómeno de agotamiento del ozono en la Antártida persista sin intervención.
Las emisiones industriales de halocarbonos son el principal motor del daño al ozono estratosférico.
Se necesitan reducciones drásticas en las emisiones de halocarbonos para revertir el daño de la capa de ozono.