 Montañas enteras están siendo removidas para ampliar el Canal. |
Fue el mayor evento en la historia del planeta desde la extinción de los dinosaurios.
Hace tres millones de años, el norte y el sur de América colisionaron.
La creación del Istmo de Panamá, la franja de tierra que une a las dos mitades del continente, estremeció tierra, mar y aire, provocó extinciones, desvió las corrientes oceánicas y transformó el clima.
 Antigua ciudad de Sagalassos (Turquía). Imagen: Bruno Vandermeulen |
SINC
Este verano, el equipo de arqueólogos encabezado por Marc Waelkens, investigador de la Universidad Católica de Leuven que ha dirigido las excavaciones en la ciudad de Sagalassos durante los últimos 21 años ha descubierto, además de los Baños Imperiales descubiertos previamente en Sagalassos, un segundo complejo balneario por debajo de los restos de las termas imperiales.
Visitors to the Salt River Valley are often surprised to discover a fertile agricultural region flourishing in the arid Arizona desert. However, these modern agricultural achievements are not without precedent. From A.D. 600 to 1450, the prehistoric Hohokam constructed one of the largest and most sophisticated irrigation networks ever created using preindustrial technology. By A.D. 1200, hundreds of miles of these waterways created green paths winding out from the Salt and Gila Rivers, dotted with large platform mounds. The remains of the ancient canals, lying beneath the streets of metropolitan Phoenix, are currently receiving greater attention from local archaeologists. We are only now beginning to understand the engineering, growth, and operation of the Hohokam irrigation systems. This information provides new insights into the Hohokam lifestyles and the organization of Hohokam society.
ECOTICIAS
Ancient hunters who stalked the world's last woolly mammoths likely helped warm the earth's far northern latitudes thousands of years before humans began burning fossil fuels, according to a study of prehistoric climate change.
Waterhistory.org
In striking contrast to the early Indus civilization and those of Sumer, Akkad, Babylonia, and Assyria in Mesopotamia, the great Egyptian civilization in the Nile River valley has sustained itself for some 5,000 years without interruption. It lasted through warfare and conquest by the Persians, Greeks, Romans, Arabs, and Turks, as well as through pandemic disease that devastated its population. Yet its agricultural foundation remained intact. Only in more recent times has the sustainabililty of Egyptian agriculture come into question.
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Plan Nacional de Desarrollo 2019-2024
