Grand Erg Occidental The mean elevation of the Grand Erg Occidental is about 500 m, on average higher than the elevation of the Grand Erg Oriental, but not as high as the neighboring Tademaït to the southwest. This desolate region is a practically uninhabited area; there are no permanent villages and there are no roads crossing it. Grand Erg Occidental The Grand Erg Occidental (, al-ʿIrq al-Gharbī al-Kabīr), (also known as the Western Sand Sea) is the second largest erg in northern Algeria after the Grand Erg Oriental. It covers an area of approximately . The sand dunes in the erg are formed
Is Geography Destiny? and Portuguese. Is Geography Destiny? Is Geography Destiny? Lessons from Latin America is a book written by John Luke Gallup, Alejandro Gaviria, Eduardo Lora and published by the Inter-American Development Bank (IDB), which documents an advanced step of the rediscovery of geography by economists initiated by Paul Krugman in the early 1990s, however in another, more deterministic direction. Inspired by the works of David Landes, Jared Diamond and Jeffrey Sachs, considered as “champions of the rediscovery of geography”, the book is the result of “a series of studies on the influence of geography on Latin American development”. It is part