HOUSTON (AP) – With each new look by scientists, the oil spill just keeps looking worse.

New figures for the blown-out well at the bottom of the Gulf of Mexico show the amount of oil spewing may have been up to twice as much as previously thought, according to scientists consulting with the federal government.
That could mean 42 million gallons to more than 100 million gallons of oil have already fouled the Gulf's fragile waters, affecting people who live, work and play along the coast from Louisiana to Florida — and perhaps beyond.
It is the third — and perhaps not the last — time the U.S. government has had to increase its estimate of how much oil is gushing. Trying to clarify what has been a contentious and confusing issue, officials gave a wide variety of estimates on Thursday.
All the new spill estimates are worse than earlier ones and far more costly for BP, which has seen its stock sink since the April 20 explosion that killed 11 workers and triggered the spill. Most of the new estimates had more oil flowing in an hour than what officials once said was spilling in an entire day.
And those new numbers may mean far worse consequences for the environment, Paul Montagna, a marine biologist at Texas A&M University Corpus Christi, said Friday.
“Doubling the amount of oil does not have a linear effect, it doesn't double the consequences, it may instead have quadruple the consequences,” Montagna, who studies the Gulf of Mexico deep sea reefs and other underwater ecosystems, said.
The spill was flowing at a daily rate that could possibly have been as high as 2.1 million gallons, twice the highest number the federal government had been saying, said U.S. Geological Survey Director Marcia McNutt, who is coordinating estimates. But she said possibly more credible numbers are a bit lower.
These estimates don't take into account the cutting of the riser pipe on June 3 — which BP said would increase the flow by about 20 percent — and subsequent placement of a cap. No estimates were given for the amount of oil gushing from the well after the cut. Nor are there estimates since a cap was put on the pipe, which already has collected more than 3 million gallons.
The estimates are not nearly complete and different teams have come up with different numbers. A new team from the Woods Hole Oceanographic Institute came in with even higher estimates, ranging from 1 million gallons a day to 2.1 million gallons. If the high end is true, that means nearly 107 million gallons have spilled since April 20.
The Obama administration's point man for the Gulf Coast oil spill acknowledged on Friday that reliable numbers on the severity of the crisis are hard to get.