Stahlkuppel soll Öl-Leck aufhalten.

Crewmen aboard the motor vessel Joe Griffin look on as the mobile offshore drilling unit Q4000 lowers a pollution containment chamber on May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES ==
Crewmen aboard the motor vessel Joe Griffin look on as the mobile offshore drilling unit Q4000 lowers a pollution containment chamber on May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES == © AFP | AFP
The mobile offshore drilling unit Q4000 lowers a pollution containment chamber into oily water at the Deepwater Horizon site May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES ==
The mobile offshore drilling unit Q4000 lowers a pollution containment chamber into oily water at the Deepwater Horizon site May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES == © AFP | AFP
Oil washes onto the sides of a pollution containment chamber as the mobile offshore drilling unit Q4000 lowers it into the water at the Deepwater Horizon site on May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES ==
Oil washes onto the sides of a pollution containment chamber as the mobile offshore drilling unit Q4000 lowers it into the water at the Deepwater Horizon site on May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES == © AFP | AFP
Oil from the leaking Deep Horizon oil rig is seen swirling through the currents in the Gulf of Mexico Thursday, May 6, 2010. BP will attempt to drop a containment dome on the main leak this week in an effort to staunch the flow of crude oil. (AP Photo/Dave Martin)
Oil from the leaking Deep Horizon oil rig is seen swirling through the currents in the Gulf of Mexico Thursday, May 6, 2010. BP will attempt to drop a containment dome on the main leak this week in an effort to staunch the flow of crude oil. (AP Photo/Dave Martin) © AP | AP
The mobile offshore drilling unit Q4000 lowers a pollution containment chamber May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES ==
The mobile offshore drilling unit Q4000 lowers a pollution containment chamber May 6, 2010 on the Gulf of Mexico off the coast of Louisiana. The chamber was designed to cap the oil discharge that was a result of the Deepwater Horizon incident. AFP PHOTO / US Coast Guard / Petty Officer 3rd Class Patrick Kelley == RESTRICTED TO EDITORIAL USE / NO SALES == © AFP | AFP
The Pollution Control Dome leaves Port Fourchon onboard an oil workboat, as it makes it way to cap the source of the oil slick from the BP Deepwater Horizon platform disaster in Louisiana, on May 5, 2010. BP has deployed a giant
The Pollution Control Dome leaves Port Fourchon onboard an oil workboat, as it makes it way to cap the source of the oil slick from the BP Deepwater Horizon platform disaster in Louisiana, on May 5, 2010. BP has deployed a giant "dome" to contain the Gulf of Mexico oil spill, knowing failure will leave crude spewing into the sea for months and magnify the risk of an environmental catastrophe. AFP PHOTO/Mark RALSTON © AFP | AFP
A 125 ton concrete and steel containment dome sits on the back of a transport ship near the center of the gulf oil spill, Thursday, May 6, 2010. It is hoped that the dome, once in place 5000 feet beneath the water's surface, will cap one of the two remaining oil leakage areas. This is the first time such an attempt as this has been made at this deapth. (AP Photo/David Quinn)
A 125 ton concrete and steel containment dome sits on the back of a transport ship near the center of the gulf oil spill, Thursday, May 6, 2010. It is hoped that the dome, once in place 5000 feet beneath the water's surface, will cap one of the two remaining oil leakage areas. This is the first time such an attempt as this has been made at this deapth. (AP Photo/David Quinn) © AP | AP
The Subsea Oil Recovery containment dome arrives at the Deepwater Horizon oil well spill source in the Gulf of Mexico on the morning of 06 May, 2010. The dome will be placed over the leaking riser about 600 feet from the well head a mile down on the ocean floor and connected to pipe from the surface ship Deepwater Enterprise that will collect and process the oil. People along the Gulf coast are waiting to see how bad the pollution damage will be as the massive oil slick caused leak drifts toward shore. EPA/CHRISTOPHER BERKEY +++(c) dpa - Bildfunk+++
The Subsea Oil Recovery containment dome arrives at the Deepwater Horizon oil well spill source in the Gulf of Mexico on the morning of 06 May, 2010. The dome will be placed over the leaking riser about 600 feet from the well head a mile down on the ocean floor and connected to pipe from the surface ship Deepwater Enterprise that will collect and process the oil. People along the Gulf coast are waiting to see how bad the pollution damage will be as the massive oil slick caused leak drifts toward shore. EPA/CHRISTOPHER BERKEY +++(c) dpa - Bildfunk+++ © dpa | dpa