The List

The Biggest Oil Spills in History

The growing slick of crude menacing the Louisiana coast is big trouble, but the world has seen much, much worse.

 Update: According to new estimates released on Aug. 2, 2010, more than 172 gallons of oil spilled into the Gulf of Mexico between April and July 15. This makes it the largest accidental spill of all time, though still likely smaller than the intentionally-caused Gulf War spill. 

 If current estimates for the Deepwater Horizon oil leak in the Gulf of Mexico are correct, the massive spill could eventually dwarf that of Exxon Valdez spill of 1989 -- previously the largest in U.S. history -- by as much as three times. At a rate of 5,000 barrels a day, for an estimated 90 days, well over 20 million gallons of crude could be pumped out onto the Louisiana coastline. Even then, it might only crack the top 15 largest oil spills in world history. Here are the top five.

GULF WAR

Location: Persian Gulf

Date: Jan. 21, 1991

Amount: Between 160 million and 420 million gallons

How it happened: As Iraqi forces withdrew from their position in Kuwait, they sabotaged hundreds of wells, oil terminals, and tankers. All told, a minimum of 4 million barrels were poured into the Persian Gulf. Within a couple of years however, experts happily reported that the biggest oil spill in history had a surprisingly small environmental impact.

THE IXTOC 1 OIL WELL

Location: Gulf of Mexico

Date: June 3, 1979 - March 23, 1980

Amount: 138 million gallons

How it happened: This exploratory oil well suffered a catastrophic blowout (whereby pressure causes the well to explode), caught fire, and caused the drilling platform to collapse. For months, 10,000 to 30,000 barrels of oil gushed into the ocean every day.

ATLANTIC EMPRESS/AEGEAN CAPTAIN COLLISION

Location: Trinidad and Tobago

Date: July 19, 1979

Amount: 90 million gallons

How it happened: Two fully loaded oil carriers, the Atlantic Empress and the Aegean Captain, collided 10 miles off the coast of Trinidad and Tobago during a tropical rainstorm. Both ships caught fire and began leaking their contents in what would become the largest tanker-based spill ever recorded.

NOWRUZ PLATFORM

Location: Persian Gulf

Date: February 4, 1983 - September 18, 1983

Amount: 80 million gallons

How it happened: During the height of the Iran-Iraq War, an oil tanker hit the Nowruz Field Platform in the gulf and knocked it onto a 45 degree angle, damaging the well underneath. The resulting leak of 1,500 barrels a day could not be capped for months because the platform was under constant attack by Iraqi planes.

ABT SUMMER

Location: Off the coast of Angola

Date: May 28, 1991

Amount: 80 million gallons

The ABT Summer, a tanker holding 260,000 tons of crude, suffered an explosion 900 miles off the coast of Angola. It burned for three days before sinking and was never recovered. Luckily, high seas dispersed the oil and dulled its potential environmental impact.

The List

The World’s Worst Immigration Laws

Think Arizona's new immigration law is harsh? The Grand Canyon state has nothing on these guys.

6-MONTH DETENTION

Country:  Italy

Immigrant population: 3.9 million

What the law does: Like much of southern Europe, Italy faces the daunting challenge of trying to regulate and manage massive migration inflows from North Africa and the Mediterranean. In response, the Italian government has instituted various measures aimed at curbing immigration. One of the harshest, passed by parliament in 2009, penalizes illegal immigrants with a fine of €5,000-10,000 and allows immigration officials to detain them for up to 6 months.

Reactions: Suffice it to say that Prime Minister Silvio Berlusconi's tough new legislation has done little to allay the rising tension in Italy over immigration and its role in Italian society. This tension came to a head this January when race riots erupted in Rosarno, a small town in the southern region of Calabria that is home to some 20,000 migrant workers, many of whom are African. The riots, which lasted for two days, left cars destroyed, shops looted, more than 50 immigrants and police officers wounded, and many rioters handcuffed and detained.

THE "BLACK SHEEP" LAW

Country: Switzerland

Immigrant population: 1.7 million

What the law does: Switzerland's uneasy relationship with its Muslim immigrant population became very public in recent years thanks to the rise of the far-right Swiss People's Party (SVP) and the referendum that resulted in a ban on mosque minarets in 2009. One subject that hasn't been getting as much publicity, however, is a tough new immigration law proposed by the SVP that is currently awaiting referendum. The law would allow the Swiss government to immediately deport all convicted criminals from other countries and -- depending on which specific provisions of the bill pass -- potentially their family members.

Reactions: After the SVP distributed a now-infamous poster in 2007 depicting three white sheep kicking out one black sheep above the caption "For More Security," the U.N. instructed its special rapporteur on racism to request an official explanation from the government regarding the poster (at the time, the SVP held a plurality of seats in the Swiss coalition government). Swiss society has become polarized over the immigration law debate. In 2007, opponents of the bill formed the short-lived "Black Sheep Committee" to support immigrants rights -- but enthusiasm for the SVP and its policies continues to grow.

MANDATORY DETENTION

Country: Australia

Immigrant Population: 5.5 million

What the law does: Despite its anything-goes image, Australia has a surprisingly draconian immigration policy. And none of the country's various immigration laws is more controversial than the Migration Reform Act of 1992 and its subsequent amendments, which collectively require the authorities to detain all non-citizens who are discovered in Australia without a valid visa. Between 1999 and 2003, the law was used to detain more than 2,000 child refugees from Southeast Asia and the Middle East who were seeking asylum in Australia.

Reactions: The law has seriously irked human rights NGOs. In 2001, Human Rights Watch sent Prime Minister John Howard a forceful letter arguing that the legislation "seriously contravenes Australia's obligations to non-citizens, refugees and asylum seekers under international human rights and refugee law." Three years later, the Australian Human Rights and Equal Opportunity Commission released a report condemning the government for the abuses and human rights violations child refugees suffered while being detained. Although Kevin Rudd's government has softened certain provisions of the law, it is still being employed to intercept and detain illegal immigrants.

THE "NIKKEI" LAW

Country: Japan

Immigrant Population: 1.7 million

What the law does: Japan has long struggled with its demographics and immigration problems. Although the country's aging population necessitates the importing of cheap labor, recently the Japanese government has sought to curtail immigration in an effort to shore up its unprecedentedly high unemployment figures. The most infamous of Tokyo's new anti-immigration policies is the "Nikkei" Law. Passed in spring 2009, the law allows the Japanese government to pay $3,000 to each unemployed Latin American immigrant of Japanese descent (known as Nikkei in Japanese) and $2,000 to each of that unemployed worker's family members to return to their country of origin. The catch? These workers and their family members would be prohibited from ever returning to work in Japan. An estimated 366,000 Brazilians and Peruvians lived in Japan at the time.

Reactions: Although the law is voluntary, it's nevertheless stirred up a deal of controversy within Japan. Some support the measure as being economically prudent, while others, such as Angelo Ishi of Musashi University in Tokyo, describe the law as "an insult" to Japan's immigrant communities. Much of the Western press has taken a relatively neutral stance on the issue, aside from Time, which ran a story with the headline "Japan to Immigrants: Thanks, But You Can Go Home Now."

DUBAI-STYLE HOSPITALITY

Country: United Arab Emirates

Immigrant population: 3.75 million (83.5 percent of total population)

What the law does: An abundant supply of cheap immigrant labor from Southeast Asia and India has helped make the UAE a major destination for foreign direct investment. Yet despite a surge of immigration into the Emirates over the past decade, the government has yet to reform its many draconian immigration policies and labor laws. One of the toughest provisions in Emirati immigration law is the prohibition of foreigners from engaging in any sort of labor union-like activity. As a result, living conditions are often harsh, including 80-hour work weeks, back-breaking manual labor, and below-minimum-wage pay. It's not atypical for immigrants to live in "tiny pre-fabricated huts, 12 men to a room, forced to wash themselves in filthy brown water and cook in kitchens next to overflowing toilets." 

Reactions: Whereas in the past criticism of UAE immigration and labor law seemed to come only from human rights NGOs and international organizations like the U.N., more recently the immigrants themselves have begun to denounce such laws. Immigrant workers in Dubai have been particularly vocal. In 2006, a group of blue-collar workers in Dubai held a union meeting and protested the unfair working and living conditions that their employers subject them to. More recently, in September 2009, construction workers went on strike and protested in the streets, demanding higher wages and overtime pay.