Video Experimental Relacionado
Updated: Jul 9, 2026

05:58
An Integrated Micro-Device System for Coral Growth and Monitoring
Published on: July 21, 2023
El cambio climático, la deforestación y el destino de la Amazonía
Yadvinder Malhi1, J Timmons Roberts, Richard A Betts
1Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford OX1 3QY, UK. yadvinder.malhi@ouce.ox.ac.uk
Resumen
El Amazonas es la Amazonia.
Área de la Ciencia:
- Ecología Ecología Ecología.
- Ciencias ambientales Ciencias ambientales.
- Ciencias del clima Ciencias del clima Ciencias del clima
Sus antecedentes:
- La Amazonia es un bioma forestal global vital y un componente clave del sistema de la Tierra.
- Este bioma enfrenta amenazas significativas por la deforestación y el cambio climático en el siglo XXI.
Objetivo del estudio:
- Para resumir los hallazgos actuales sobre las amenazas a la Amazonia.
- Explorar las consecuencias para el ecosistema y los habitantes humanos.
- Para esbozar futuras opciones de preservación y financiamiento.
Principales métodos:
- Revisión de la literatura de hallazgos recientes.
- Análisis de los impactos del cambio climático y de la deforestación.
- Discusión de estrategias de conservación y modelos financieros.
Principales resultados:
- La deforestación y el cambio climático plantean graves riesgos para la biodiversidad y las funciones del ecosistema de la Amazonía.
- La salud del bosque afecta directamente a sus residentes humanos.
- Se están proponiendo nuevos modelos de financiación para la preservación de los bosques.
Conclusiones:
- Se necesitan medidas urgentes para abordar la deforestación y el cambio climático en la Amazonia.
- La gestión sostenible y la financiación innovadora son cruciales para el futuro del bioma.
- La preservación de la Amazonia es esencial para el equilibrio ecológico global.
Videos de Conceptos Relacionados
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.
Threats to Biodiversity
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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 Carbon Cycle
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
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...
Adaptations that Reduce Water Loss
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.