WASHINGTON — What makes an oil spill really bad? Most of the ingredients for it are now blending in the Gulf of Mexico.
Experts tick off the essentials: A relentless flow of oil from under the sea; a type of crude that mixes easily with water; a resultant gooey mixture that is hard to burn and even harder to clean; water that's home to vulnerable spawning grounds for new life; and a coastline with difficult-to-scrub marshlands.
Gulf Coast experts have always talked about "the potential for a bad one," said Wes Tunnell, coastal ecology and oil spill expert at Texas A&M University-Corpus Christi.
"And this is the bad one. This is just a biggie that finally happened."