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Bering land bridge – Native Americans

By |2018-11-09T07:05:43-07:00June 20th, 2017|Environment, History, Native American|

Bering Strait - today there's ocean, but long ago there it was the Bering land bridge Ocean levels were lower During an Ice Age, when the world is colder, more of the world's water freezes into ice. So less water is in the oceans than before. This makes the level of the oceans [...]

Farming and famine – Climate change

By |2019-04-09T19:16:10-07:00June 20th, 2017|Environment|

Climate change: Hunters, bison and aurochs Cave painting from Lascaux, ca. 15,000 BC Climate change and human evolution Climate change encouraged the evolution of the first humans, who probably evolved in Africa as the climate got drier and grasslands replaced jungles. Human evolution Early primates African environment All our Africa articles People came [...]

Global warming in modern times

By |2017-06-20T01:27:44-07:00June 20th, 2017|Environment, Science|

Coal plant in China Human activities probably started to affect the world's climate as early as about 10,000 BC. That's when people started farming and cut down a whole lot of trees to create their fields. Trees take in carbon dioxide and convert it to oxygen. So without them, carbon dioxide levels rose, [...]

Climate change and the Philistines

By |2019-04-10T09:19:07-07:00June 20th, 2017|Africa, Environment, West Asia|

Did climate change cause a Bronze Age crisis? Tomb stela of Nemti-ui, from the First Intermediate Period. The stele's only painted, not carved, because people couldn't afford carving after the climate change collapse. But even as people created the world's first cities and governments, the world continued to get warmer. This may have [...]

Climate change and world history

By |2019-04-10T07:49:05-07:00June 20th, 2017|Environment|

Climate change and world history: Wildebeest on savannah grasslands, Kenya (Africa) African grasslands emerge In the years just before human beings first evolved, the world was a wetter place than it is now, and a lot of Africa was covered in tropical jungle, full of fruit trees and small animals. The Quaternary Early [...]

When was the First Intermediate Period? – Ancient Egypt

By |2018-05-08T15:35:00-07:00June 14th, 2017|Africa, Egypt, Environment, History|

First Intermediate Period: a time of climate crisis? A Nilometer on Elephantine Island (Nile Valley Tours) - This ancient Egyptian device measured how high the Nile floods were each year. The Old Kingdom collapses The end of the Old Kingdom, around 2100 BC, seems to have been caused by a major climate change.  [...]

Ancient Egyptian plants – papyrus and palm trees

By |2019-01-12T17:50:42-07:00June 13th, 2017|Africa, Egypt, Environment|

Date palm Palms and papyrus The plants that grew in ancient Egypt were very different from plants that grow in America or Britain. The lotus and the papyrus plants, for instance, were (and are) very common in Egypt. Egyptian environment Egyptian animals African environment All our Ancient Egypt articles All the Africa articles [...]

Egyptian geography and environment

By |2018-11-27T07:33:06-07:00June 13th, 2017|Africa, Egypt, Environment|

Egyptian geography: a map showing the Sahara desert and the Nile river The Sahara Desert Egypt has a very special environment, which has played a very big part in Egyptian history. Basically Egypt is really part of the Sahara Desert, which runs all across the top of Africa. African environment All our Egypt [...]

Ancient Egyptian Animals – Egypt’s wild animals, domesticated animals, and pets

By |2018-04-07T17:04:22-07:00June 13th, 2017|Africa, Egypt, Environment|

Ancient Egyptian animals: Crocodiles from the New Kingdom Mostly, the same kinds of animals lived in ancient Egypt as in other parts of Africa. Wild animals included crocodiles, who lived in the Nile River water (and there are still lots of crocodiles in the Nile today, too!). There were lots of water birds [...]