Enseñanzas de la Antártida. episode artwork

EPISODE · Oct 17, 2020 · 17 MIN

Enseñanzas de la Antártida.

from Cienciaes.com

Ulises nos invita viajar 90 millones de años hacia atrás en el tiempo para visitar la Antártida. A pesar de encontrarse en una posición semejante a la actual, investigaciones recientes describen un continente antártico muy distinto. En lugar de estar cubierto de una densa capa de hielo de 2000 metros de espesor medio, en tiempos del Cretácico, la Antártida disfrutaba de un clima templado. Testigos de sedimentos de aquella época, extraídos del fondo del mar de Amundsen en 2017, contienen granos de polen, esporas, plantas y raíces que indican la riqueza de vida de aquella época ¿Por qué era tan diferente? Diversas investigaciones hablan de un periodo extremadamente cálido en la Tierra, provocado por un exceso de dióxido de carbono en la atmósfera que triplica a la cantidad actual. Más información en https://cienciaes.com

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This episode was published on October 17, 2020.

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Ulises nos invita viajar 90 millones de años hacia atrás en el tiempo para visitar la Antártida. A pesar de encontrarse en una posición semejante a la actual, investigaciones recientes describen un continente antártico muy distinto. En lugar de...

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