This article originally appeared on TomDispatch.

On June 15, in their testimony before the House Energy and Commerce Committee, the chief executives of America’s leading oil companies argued that BP’s Deepwater Horizon disaster in the Gulf of Mexico was an aberration—something that would not have occurred with proper corporate oversight and will not happen again once proper safeguards are put in place. This is fallacious, if not an outright lie. The Deep Horizon explosion was the inevitable result of a relentless effort to extract oil from ever deeper and more hazardous locations. In fact, as long as the industry continues its relentless, reckless pursuit of "extreme energy"—oil, natural gas, coal and uranium obtained from geologically, environmentally and politically unsafe areas—more such calamities are destined to occur.

At the onset of the modern industrial era, basic fuels were easy to obtain from large, near-at-hand energy deposits in relatively safe and friendly locations. The rise of the automobile and the spread of suburbia, for example, were made possible by the availability of cheap and abundant oil from large reservoirs in California, Texas and Oklahoma, and from the shallow waters of the Gulf of Mexico. But these and equivalent deposits of coal, gas and uranium have been depleted. This means the survival of our energy-centric civilization increasingly relies on supplies obtained from risky locations—deep underground, far at sea, north of the Arctic circle, in complex geological formations, or in unsafe political environments. That guarantees the equivalent of two, three, four or more Gulf-oil-spill-style disasters in our energy future.

Back in 2005, the CEO of Chevron, David O’Reilly, put the situation about as bluntly as an oil executive could. "One thing is clear," he said, "the era of easy oil is over. Demand is soaring like never before.… At the same time, many of the world’s oil and gas fields are maturing. And new energy discoveries are mainly occurring in places where resources are difficult to extract, physically, economically, and even politically."

O’Reilly promised then that his firm, like the other energy giants, would do whatever it took to secure this "difficult energy" to satisfy rising global demand. And he proved a man of his word. As a result, BP, Chevron, Exxon and the rest of the energy giants launched a drive to obtain traditional fuels from hazardous locations, setting the stage for the Gulf of Mexico oil disaster and those sure to follow. As long as the industry stays on this course, rather than undertaking the transition to an alternative energy future, more such catastrophes are inevitable, no matter how sophisticated the technology or scrupulous the oversight.

The only question is: What will the next Deepwater Horizon disaster look like (other than another Deepwater Horizon disaster)? The choices are many, but here are four possible scenarios for future Gulf-scale energy calamities. None of these is inevitable, but each has a plausible basis in fact.

Scenario 1: Newfoundland—Hibernia Platform Destroyed by Iceberg

Approximately 190 miles off the coast of Newfoundland in what locals call "Iceberg Alley" sits the Hibernia oil platform, the world’s largest offshore drilling facility. Built at a cost of some $5 billion, Hibernia consists of a 37,000-ton "topsides" facility mounted on a 600,000-ton steel-and-concrete gravity base structure (GBS) resting on the ocean floor, some 260 feet below the surface. This mammoth facility, normally manned by 185 crew members, produces about 135,000 barrels of oil per day. Four companies (ExxonMobil, Chevron, Murphy Oil and Statoil) plus the government of Canada participate in the joint venture established to operate the platform.

The Hibernia platform is reinforced to withstand a direct impact by one of the icebergs that regularly sail through this stretch of water, located just a few hundred miles from where the Titanic infamously hit an iceberg and sank in 1912. Sixteen giant steel ribs protrude from the GBS, positioned in such a way as to absorb the blow of an iceberg and distribute it over the entire structure. However, the GBS itself is hollow, and contains a storage container for 1.3 million barrels of crude oil—about five times the amount released in the 1989 Exxon Valdez spill.

The owners of the Hibernia platform insist that the design will withstand a blow from even the largest iceberg. As global warming advances and the Greenland glaciers melt, however, massive chunks of ice will be sent floating into the North Atlantic on a path past Hibernia. Add increased storm activity (another effect of global warming) to an increase in iceberg frequency and you have a formula for overwhelming the Hibernia’s defenses.

Here’s the scenario: it’s the stormy winter of 2018, not an uncommon situation in the North Atlantic at that time of year. Winds exceed eighty miles per hour, visibility is zilch, and iceberg-spotter planes are grounded. Towering waves rise to heights of fifty feet or more, leaving harbor-bound the giant tugs the Hibernia’s owners use to nudge icebergs from the platform’s path. Evacuation of the crew by ship or helicopter is impossible.

Without warning, a gigantic, storm-propelled iceberg strikes the Hibernia, rupturing the GBS and spilling more than one million barrels of oil into rough waters. The topside facility is severed from the base structure and plunges into the ocean, killing all 185 crew members. Every connection to the undersea wells is ruptured, and 135,000 barrels of oil start flowing into the Atlantic every day (approximately twice the amount now coming from the BP leak in the Gulf of Mexico). The area is impossible to reach by plane or ship in the constant bad weather, meaning emergency repairs can’t be undertaken for weeks—not until at least 5 million additional barrels of oil have poured into the ocean. As a result, one of the world’s most prolific fishing grounds— the Grand Banks off Nova Scotia, New Brunswick and Cape Cod—is thoroughly poisoned.

Does this sound extreme? Think again. On February 15, 1982, a giant drillship, the Ocean Ranger (the "Ocean Danger" to its habitués), was operating in the very spot Hibernia now occupies when it was struck by fifty-foot waves in a storm and sank, taking the lives of eighty-four crew members. Because no drilling was under way at the time, there were no environmental consequences, but the loss of the Ocean Ranger—a vessel very much like the Deepwater Horizon—should be a reminder of just how vulnerable otherwise strong structures can be to the North Atlantic’s winter fury.

Scenario 2: Nigeria—America’s Oil Quagmire

Nigeria is now America’s fifth leading supplier of oil (after Canada, Mexico, Saudi Arabia and Venezuela). Long worried about the possibility that political turmoil in the Middle East might diminish the oil flow from Saudi Arabia just as Mexico’s major fields were reaching a state of depletion, American officials have worked hard to increase Nigerian imports. However, most of that country’s oil comes from the troubled Niger Delta region, whose impoverished residents receive few benefits but all of the environmental damage from the oil extraction there. As a result, they have taken up arms in a bid for a greater share of the revenues the Nigerian government collects from the foreign energy companies doing the drilling. Leading this drive is the Movement for the Emancipation for the Niger Delta (MEND), a ragtag guerrilla group that has demonstrated remarkable success in disrupting oil company operations.

The US Department of Energy (DoE) rates Nigeria’s innate oil-production capacity at about 2.7 million barrels per day. Thanks to insurgent activity in the Delta, however, actual output has fallen significantly below this. "Since December 2005, Nigeria has experienced increased pipeline vandalism, kidnappings, and militant takeovers of oil facilities in the Niger Delta," the department reported in May 2009. "Kidnappings of oil workers for ransom are common and security concerns have led some oil services firms to pull out of the country."

Washington views the insurgency as a threat to America’s "energy security," and so a reason for aiding the Nigerian military. "Disruption of supply from Nigeria would represent a major blow to US oil security," the State Department noted in 2006. In August 2009, on a visit to Nigeria, Secretary of State Hillary Clinton promised even more military aid for oil protection purposes.

Here, then, is scenario #2: It’s 2013. The Delta insurgency has only grown, driving Nigeria’s oil output down to a third of its capacity. Global oil demand is substantially higher and rising, while production slips everywhere. Gasoline prices have reached $5 per gallon in the United States with no end in sight, and the economy seems headed toward yet another deep recession.

The barely functioning civilian government in Abuja, the capital, is overthrown by a Muslim-dominated military junta that promises to impose order and restore the oil flow in the delta. Some Christian elements of the military promptly defect, joining MEND. Oil facilities across the country are suddenly under attack; oil pipelines are bombed, while foreign oil workers are kidnapped or killed in record numbers. The foreign oil companies running the show begin to shut down operations. Global oil prices go through the roof.

When a dozen American oil workers are executed and a like number held hostage by a newly announced rebel group, the president addresses the nation from the Oval Office, declares that US energy security is at risk, and sends 20,000 Marines and Army troops into the delta to join the Special Operations forces already there. Major port facilities are quickly secured, but the American expeditionary force soon finds itself literally in an oil quagmire, an almost unimaginable landscape of oil spills in which they find themselves fighting a set of interlocked insurgencies that show no sign of fading. Casualties rise as they attempt to protect far-flung pipelines in an impenetrable swamp not unlike the Mekong Delta of Vietnam War fame.

Sound implausible? Consider this: in May 2008, the US Army Training and Doctrine Command and the Joint Forces Command conducted a crisis simulation at the US Army War College in Carlisle, Pennsylvania, that involved precisely such a scenario, also set in 2013. The simulation, "Unified Quest 2008," was linked to the formation of the US Africa Command (Africom), the new combat organization established by President Bush in February 2007 to oversee American military operations in Africa. An oil-related crisis in Nigeria, it was suggested, represented one of the more likely scenarios for intervention by US forces assigned to Africom. Although the exercise did not explicitly endorse a military move of this sort, it left little doubt that such a response would be Washington’s only practical choice.

Scenario 3: Brazil—Cyclone Hits "Pre-Salt" Oil Rigs In November 2007, Brazil’s state-run oil company, Petróleo Brasileiro (Petrobras), announced a remarkable discovery: in a tract of the South Atlantic some 180 miles off the coast of Rio de Janeiro, it had found a giant oil reservoir buried beneath a mile and a half of water and a thick layer of salt. Called "pre-salt" oil because of its unique geological positioning, the deposit was estimated to hold 8 to 12 billion barrels of oil, making this the biggest discovery in the Western Hemisphere in forty years. Further test drilling by Petrobras and its partners revealed that the initial find— at a field called Tupi—was linked to other deepwater "pre-salt" reservoirs, bringing the total offshore potential to 50 billion barrels or more. (To put that in perspective, Saudi Arabia is believed to possess reserves of 264 billion barrels and the United States, 30 billion.)

With this discovery, Brazil could "jump from an intermediate producer to among the world’s largest producers," said Dilma Rousseff, chief cabinet official under President Luiz Inácio Lula da Silva and thought to be his most likely successor. To ensure that the Brazilian state exercises ultimate control over the development of these reservoirs, President da Silva—"Lula," as he is widely known—and Rousseff have introduced legislation in the Brazilian Congress giving Petrobras control over all new fields in the basin. In addition, Lula has proposed that profits from the pre-salt fields be channeled into a new social fund to alleviate poverty and underdevelopment in the country. All this has given the government a huge stake in the accelerated development of the pre-salt fields.

Extracting oil a mile and a half under the water and from beneath two-and-a-half miles of shifting sand and salt will, however, require the utilization of technology even more advanced than that employed on the Deepwater Horizon. In addition, the pre-salt fields are interspersed with layers of high-pressure gas (as appears to have been the case in the gulf), increasing the risk of a blowout. Brazil does not experience hurricanes as does the Gulf of Mexico, but in 2004, its coastline was ravaged by a surprise subtropical cyclone that achieved hurricane strength. Some climatologists believe that hurricane-like storms of this sort, once largely unknown in the South Atlantic, will become more common as global warming only increases.

Which brings us to scenario #3: It’s 2020, by which time the pre-salt area off Rio will be host to hundreds of deepwater drilling rigs. Imagine, then, a subtropical cyclone with hurricane-force winds and massive waves that suddenly strikes this area, toppling dozens of the rigs and damaging most of the others, wiping out in a matter of hours an investment of over $200 billion. Given a few days warning, most of the crews of these platforms have been evacuated. Freak winds, however, down several helicopters, killing some fifty oil workers and flight crew members. Adding to the horror, attempts to seal so many undersea wells at such depths fail, and oil in historically unprecedented quantities begins gushing into the South Atlantic. As the cyclone grows to full strength, giant waves carry the oil inexorably toward shore.

Since the storm-driven assault cannot be stopped, Rio de Janeiro’s famous snow-white beaches are soon blanketed in a layer of sticky black petroleum, and in a matter of weeks, parts of Brazil’s coastal waters have become a "dead ocean." Clean-up efforts, when finally initiated, prove exceedingly difficult and costly, adding immeasurably to the financial burden of the Brazilian state, now saddled with a broken and bankrupt Petrobras. Meanwhile, the struggle to seal all the leaking pre-salt wells in the deep Atlantic proves a Herculean task as, month after month, oil continues to gush into the Atlantic.

Scenario 4: East China Sea—A Clash Over Subsea Gas

At one time, most wars between states were fought over disputed borders or contested pieces of land. Today, most boundaries are fixed by international treaty and few wars are fought over territory. But a new type of conflict is arising: contests over disputed maritime boundaries in areas that harbor valuable subsea resources, particularly oil and natural gas deposits. Such disputes have already occurred in the Persian Gulf, the Caspian Sea, the East and South China Seas and other circumscribed bodies of water. In each case, the surrounding states claim vast offshore tracts that overlap, producing—in a world that may be increasingly starved for energy—potentially explosive disputes.

One of them is between China and Japan over their mutual boundary in the East China Sea. Under the United Nations Convention on the Law of the Sea, which both countries have signed, each is allowed to exercise control over an "exclusive economic zone" (EEZ) extending 200 nautical miles (about 230 standard miles) from its coastline. But the East China Sea is only about 360 miles across at its widest point between the two countries. You see the problem.

In addition, the UN convention allows mainland states to claim an extended EEZ stretching to their outer continental shelf (OCS). In China’s case, that means nearly all the way to Japan—or so say the Chinese. Japan insists that the offshore boundary between the two countries should fall midway between them, or about 180 miles from either shore. This means that there are now two competing boundaries in the East China Sea. As fate would have it, in the gray area between them houses a promising natural gas field called Chunxiao by the Chinese and Shirakaba by the Japanese. Both countries claim that the field lies within their EEZ, and is theirs alone to exploit.

For years, Chinese and Japanese officials have been meeting to resolve this dispute—to no avail. In the meantime, each side has taken steps to begin the exploitation of the undersea gas field. China has installed drilling rigs right up to the median line claimed by Japan as the boundary between them and is now drilling for gas there; Japan has conducted seismic surveys in the gray area between the two lines. China claims that Japan’s actions represent an illegal infringement; Japan says that the Chinese rigs are sucking up gas from the Japanese side of the median line, and so stealing their property. Each side sees this dispute through a highly nationalistic prism and appears unwilling to back down. Both sides have deployed military forces in the contested area, seeking to demonstrate their resolve to prevail in the dispute.

Here, then, is Scenario #4: It’s 2022. Successive attempts to resolve the boundary dispute through negotiations have failed. China has installed a string of drilling platforms along the median line claimed by Japan and, according to Japanese officials, has extended undersea drill pipes deep into Japanese territory. An ultra-nationalistic, right-wing government has taken power in Japan, vowing finally to assert control over Japanese sovereign territory. Japanese drill ships, accompanied by naval escorts and fighter planes, are sent into the area claimed by China. The Chinese respond with their warships and order the Japanese to withdraw. The two fleets converge and begin to target each other with guns, missiles, and torpedoes.

At this point, the "fog of war" (in strategic theorist Carl von Clausewitz’s famous phrase) takes over. As a Chinese vessel steams perilously close to a Japanese ship in an attempt to drive it off, the captain of that vessel panics and orders his crew to open fire; other Japanese crews, disobeying orders from superior officers, do the same. Before long, a full-scale naval battle ensues, with several sunken ships and hundreds of casualties. Japanese aircraft then attack the nearby Chinese drill rigs, producing hundreds of additional casualties and yet another deep-sea environmental disaster. At this point, with both sides bringing in reinforcements and girding for full-scale war, the US president makes an emergency visit to the region in a desperate effort to negotiate a cease-fire.

Such a scenario is hardly implausible. Since September 2005, China has deployed a naval squadron in the East China Sea, sending its ships right up to the median line—a boundary that exists in Japanese documents but is not, of course, visible to the naked eye (and so can be easily overstepped). On one occasion, Japanese naval aircraft flew close to a Chinese ship in what must have seemed a menacing fashion, leading the crew to train its antiaircraft guns on the approaching plane. Fortunately, no shots were fired. But what would have happened if the Japanese plane had come a little bit closer, or the Chinese captain was a bit more worried? One of these days, as those gas supplies become even more valuable and the hair-trigger quality of the situation increases, the outcome may not be so benign.

These are, of course, only a few examples of why, in a world ever more reliant on energy supplies acquired from remote and hazardous locations, BP-like catastrophes are sure to occur. While none of these specific calamities are guaranteed to happen, something like them surely will—unless we take dramatic steps now to reduce our dependence on fossil fuels and speed the transition to a post-carbon world. In such a world, most of our energy would come from renewable wind, solar and geothermal sources that are commonplace and don’t have to be tracked down a mile or more under the water or in the icebound north. Such resources generally would not be linked to the sort of disputed boundaries or borderlands that can produce future resource wars.

Until then, prepare yourselves. The disaster in the gulf is no anomaly. It’s an arrow pointing toward future nightmares.