It was willing to provide ships outfitted with oil-skimming booms, and it proposed a plan for building sand barriers to protect sensitive marshlands.

The response from the Obama administration and BP, which are coordinating the cleanup: “The embassy got a nice letter from the administration that said, ‘Thanks, but no thanks,’” said Geert Visser, consul general for the Netherlands in Houston…

U.S. ships are being outfitted this week with four pairs of the skimming booms airlifted from the Netherlands and should be deployed within days. Each pair can process 5 million gallons of water a day, removing 20,000 tons of oil and sludge.

At that rate, how much more oil could have been removed from the Gulf during the past month?…

Many in the U.S., including the president, have expressed frustration with the handling of the cleanup. In the Netherlands, the response would have been different, Visser said.

There, the government owns the cleanup equipment, including the skimmers now being deployed in the Gulf.