{"ok":true,"nota":{"id":"3fd3bc06486415d3","slug":"los-dos-hemisferios-de-la-tierra-habrian-trabajado-juntos-en-las-edade-3fd3bc","titulo":"Los dos hemisferios de la Tierra habrían trabajado juntos en las edades de hielo","resumen":"Investigadores de la Universidad de St Andrews describieron un proceso hasta ahora desconocido que pudo empujar a la Tierra a edades de hielo pasadas. Vincula el hielo del hemisferio norte con cambios en el océano y el hielo marino del sur.","fuente":"phys","fuenteNombre":"Phys.org","color":"#2b5c8a","autor":"","url":"https://phys.org/news/2026-10-earth-hemispheres-ice-ages.html","imagen":"https://scx1.b-cdn.net/csz/news/tmb/2026/ice-age-1.jpg","tema":"ciencia","subtemas":["edades de hielo","dióxido de carbono","océanos","clima pasado"],"entidades":["Universidad de St Andrews","Journal of Climate"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-22T18:00:06.000Z","indexTs":"2026-10-22T18:02:17.964Z","hash":"d9fd9c3e46d061eee106487965e5a2760f1031d09594eae529bc7bcb23ec3c5f","tsa":{"time":"Oct 22 18:02:44 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Hasta ahora era difícil explicar cómo se conectaban dos regiones tan alejadas del planeta durante las glaciaciones. El estudio propone que el océano del sur influyó en cuánto dióxido de carbono quedaba en la atmósfera, lo que a su vez afectaba el enfriamiento. Es una explicación plausible, aunque todavía falta contrastarla con más evidencia.","quienFirma":"Universidad de St Andrews","confianza":"revisado","consulta":null},"sello":{"hash":"d9fd9c3e46d061eee106487965e5a2760f1031d09594eae529bc7bcb23ec3c5f","sello":"d5f582605a3aceedd05601f8648b6fc640c96eede402f4e3896b24e1aa4cc5a4","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6575370,"aleatorio":"cd9c6d637ef7139bbd6d8f94010f59455a0e9cbc354a8493480b746ee74ea881","tiempo":"2026-10-22T18:02:00.000Z"},"nist":{"cadena":2,"pulso":1994885,"salida":"CC57D35C2D75F565411D2AD5BD14086E909784ECCC41159846EBED59ADA671C9A215C0A755C209DCA5E5ECB827A4E6E0C76AA0AE853FB766F881DA773444F528","tiempo":"2026-10-22T18:02:00.000Z"},"noAntes":"2026-10-22T18:02:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 22 18:02:44 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Earth's hemispheres may have worked together to drive past ice ages","descripcion":"New research from the University of St Andrews has uncovered a previously unknown process that may have helped drive Earth into past ice ages. Published today (Oct. 22) in the Journal of Climate, the paper links ice sheets in the Northern Hemisphere to changes in ocean circulation and sea ice in the Southern Hemisphere understood to drive down atmospheric CO₂. Linking these two key features of the ice ages has long been a challenge, given how far apart the two regions are.","pubDate":"Thu, 22 Oct 2026 14:00:06 EDT","url":"https://phys.org/news/2026-10-earth-hemispheres-ice-ages.html"},"indexado":"2026-10-22T18:02:17.964Z"}}