Estados reanudan clases presenciales; otros suspenden por covid-19
Los contagios entre alumnos, personal docente y padres y madres de familia no han permitido la reactivación normal de las actividades escolares.
Murió el ex gobernador tabasqueño e historiador Enrique González Pedrero
Fue catedrático universitario, abogado, historiador y ex director del Fondo de Cultura Económica; el presidente de México ha lamentado su deceso.
Depredadores sagrados, un análisis de la pederastia clerical en México
El sociólogo Bernardo Barranco recopila testimonios de víctimas y expertos para analizar a profundidad el problema.
¿Qué provocó la mancha de petróleo en el Golfo de México?
Hay algo más que el derrame de una tubería submarina. La respuesta podría estar en las plantas y refinerías cercanas.
Con nanoburbujas limpian los canales de Xochimilco
La oxigenación del agua le regala nutrientes que benefician a la flora, la fauna y la producción de alimentos.
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