The little-known history of how the Sahara was transformed from a green and fertile land into the largest hot desert in the world The Sahara is the largest hot desert in the world, equal in size to China or the United States. Yet, this arid expanse was once a verdant, pleasant land, fed by rivers and lakes. The Sahara sustained abundant plant and animal life, such as Nile perch, turtles, crocodiles, and hippos, and attracted prehistoric hunters and herders. What transformed this land of lakes into a sea of sands? When the Sahara Was Green describes the remarkable history of Earth’s greatest desert—including why its climate changed, the impact this had on human populations, and how scientists uncovered the evidence for these extraordinary events. From the Sahara’s origins as savanna woodland and grassland to its current arid incarnation, Martin Williams takes us on a vivid journey through time. He describes how the desert’s ancient rocks were first fashioned, how dinosaurs roamed freely across the land, and how it was later covered in tall trees. Along the way, Williams addresses many questions: Why was the Sahara previously much wetter, and will it be so again? Did humans contribute to its desertification? What was the impact of extreme climatic episodes—such as prolonged droughts—upon the Sahara’s geology, ecology, and inhabitants? Williams also shows how plants, animals, and humans have adapted to the Sahara and what lessons we might learn for living in harmony with the harshest, driest conditions in an ever-changing global environment. A valuable look at how an iconic region has changed over millions of years, When the Sahara Was Green reveals the desert’s surprising past to reflect on its present, as well as its possible future.

Let’s explore the Sahara Desert and meet the creatures living there. Yes, believe it or not there are animals who survive the extreme heat of such an environment. Expose your children to books that focus on the natural world to develop an appreciate of the Earth and the complexity of life in it. Go ahead and grab a copy tod

Explore the past, present, and future of the Sahara Desert. Beautiful photos, fact-filled text, and engaging infographics help readers learn all about this natural wonder and how to protect it long into the future.

Issued in conjunction with the exhibition Caravans of Gold, Fragments in Time, held January 26, 2019-July 21, 2019, Mary and Leigh Block Museum of Art, Northwestern University, Evanston, Illinois.

Explore the Sahara Desert and learn all about what it's like to live in this biome, from what kinds of plants and animals are found there to what kinds of weather it receives.

The Sahara is the quintessence of isolation, epitomizing both remoteness and severity of environment unlike any other place on the face of the earth. Replete with myths and fictions, it is a wild land, dotted with oases and camel trains trudging through sand dunes that roll like the waves on a sea, as far as the distant horizon. But this is just part of the picture. The largest desert in the world, the Sahara ranges from the river Nile running through Egypt and Sudan in the east, to the Atlantic coast from Morocco to Mauritania in the west; stretching from the Atlas Mountains and the shores of the Mediterranean in the north, to the fluid Sahelian fringe that delineates the desert in the south. Invaders and traders have come and gone for millennia, but the Sahara is also the place that some people call home. While larger than the United States, this vast area contains only three million people: Africans and Arabs, Berber and Bedu, Tuareg and Tebu. Eamonn Gearon explores the history, culture, and terrain of a place whose name is familiar to all, but known to few. Conquered and Cursed: from the 50,000-strong army of Cambyses, swallowed in a sandstorm in the sixth century BC, to the US Marines' first foreign engagement, in 1805; Hannibal and his elephants, Caesar against Anthony and Cleopatra, Alexander the Great, the armies of Islam, Napoleon, and Rommel versus Monty. Myths and Mysteries: from whales in the White Desert to the arrival of camels in the Great Sand Sea; chariots of the gods and colonialists' motor-cars; from the Land of the Dead to Timbuktu; salt and gold mines, fields of oil and gas and a man-made river. Artists, Writers, and Filmmakers: from the ancient rock art of the Tassili frescoes to the modernism of Matisse and Klee; from Ibn Battuta to Paul Bowles; from Beau Geste's French Foreign Legion to Star Wars.