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Articles in Physical Geography

Britain Vs. Spain and Spain Vs. Morocco in the Strait of Gibraltar

By Martin W. Lewis | August 23, 2010 | 6 Comments

Maritime chokepoints, where ships must pass through narrow passageways, are sites of geopolitical advantage that have often been contested. Sea-based empires, especially Portugal in the 1500s and Britain in the 1800s, seized and garrisoned towns and fortresses at the entrance to marine chokepoints scattered over vast distances. Today, remnants of earlier imperial projects are evident

Border Delineation and Desiccation in Lake Chad

By Martin W. Lewis | August 5, 2010 |

Unrest in the Bakassi Peninsula should not blind us to the fact that the Nigerian and Cameroonian governments have peaceably settled a long-standing dispute that once threatened to break into war. With UN help, the two countries are setting up 3,000 pillars to demarcate their border, a process that is scheduled to be completed

Election Controversies and Ethnic Complexities on the Not-So-Tiny Island of Bougainville

By Martin W. Lewis | June 23, 2010 |

In June 2010, the Autonomous Region of Bougainville in Papua New Guinea (PNG) voted out three quarters of its parliamentary representatives along with its president. Whereas the outgoing leader was a former revolutionary committed to independence, the newly elected chief executive favors continuing ties with PNG. Most sources, however, do not see a loss of

Struggles over Dams and Waterfalls in Paraguay

By Martin W. Lewis | May 28, 2010 |

The uproar over Kathryn Bigelow’s plans to shoot a film in the Triple Frontier region (discussed yesterday) might seem surprising at first glance. Ciudad del Este and the tri-border zone are already known in Brazil, Argentina, and Paraguay for smuggling and crime, and are thus unlikely to suffer much domestically from American movie insults

The Temporary Rebirth of Lake Eyre

By Martin W. Lewis | April 26, 2010 | 2 Comments

As the Southern Aral Sea dies, another massive lake on the opposite side of the world is being reborn, although its life expectancy is not long. When full, South Australia’s Lake Eyre is about the size of Cyprus. More often, Lake Eyre is a giant salt-flat pocked with briny pools. But Ayer’s drainage area is

The Tragedy of Karakalpakstan and the Fall of Khwarezm

By Martin W. Lewis | April 23, 2010 | One Comment

The destruction of the Aral Sea has disproportionally hit one ethnic group, the Karakalpak, a people roughly half a million strong whose name means “black hats.” The Karakalpak homeland is the region where the Amu Darya River once flowed into the Aral Sea. The Karakalpak traditionally farmed the fertile delta soils, fished in the river

The Death, and Partial Rebirth, of the Aral Sea

By Martin W. Lewis | April 22, 2010 |

After touring the remains of the Aral Sea by helicopter in April 2010, U.N. secretary general Ban-Ki Moon expressed shock at the scale of devastation. “It is clearly one of the worst environmental disasters of the world,” he reported. “It really left with me a profound impression, one of sadness that such a mighty sea

The Cold War Between Tajikistan and Uzbekistan

By Martin W. Lewis | April 21, 2010 |

In August 2008, the New York Times described Tajikistan and Uzbekistan as being locked in a “cold war.” Recently, the conflict has warmed up. In early 2010, Uzbekistan imposed a partial blockade on Tajikistan, a much poorer country poorly tied into global transportation networks. Uzbek authorities have been holding freight cars at the border, stifling

Kerguelen: France’s Desolate Islands

By Martin W. Lewis | April 13, 2010 |

One of the most intriguing — and obscure — parts of France’s far-flung territorial domain is the Kerguelen Archipelago in the southern Indian Ocean, also known as the Desolation Islands. Dominated by Grande Terre Island, Kerguelen is one of the world’s largest remote oceanic landmasses; covering 2,786 square miles (7,215 km. sq.), it is roughly

Sudan: Africa’s New Breadbasket?

By Martin W. Lewis | March 25, 2010 |

As yesterday’s post discussed, Ethiopia’s western lowlands have significant agricultural potential. The agricultural resources of neighboring Sudan, however, are much greater. Vast clay plains cover much of east-central and southern Sudan; although they are not easy to farm, their soils are fertile and they have abundant – often too abundant – supplies of water.