Reversing the policy of former President Bush, President Barack Obama clears the way for a significant increase in federal dollars for embryonic stem cell research.

Washington ? From tiny embryonic cells to the large-scale physics of global warming, President Barack Obama urged researchers on Monday to follow science and not ideology as he abolished contentious Bush-era restraints on stem-cell research.

“Our government has forced what I believe is a false choice between sound science and moral values,” Obama declared as he signed documents changing U.S. science policy and removing what some researchers have said were shackles on their work.

“It is about ensuring that scientific data is never distorted or concealed to serve a political agenda — and that we make scientific decisions based on facts, not ideology,” Obama said.

Researchers said the new president’s message was clear: Science, which once propelled men to the moon, again matters in American life.

Opponents saw it differently: a defeat for morality in the most basic questions of life and death.

“The action by the president today will, in effect, allow scientists to create their own guidelines without proper moral restraints,” Family Research Council President Tony Perkins said.

In a crowded ornate East Room, there were more scientists in the White House than Alan Leshner, CEO of the American Association for the Advancement of Science had seen in his 30 years in Washington. “More happy scientists than I’ve seen,” he added.

The most immediate effect will allow federally funded researchers to use hundreds of new embryonic stem cell lines for promising, but still long-range research in hopes of creating better treatments, possibly even cures, for conditions ranging from diabetes to paralysis. Until now, those researchers had to limit themselves to just 21 stem cell lines created before August 2001, when President George W. Bush limited funding because of “fundamental questions about the beginnings of life and the ends of science.”

Science, politics and religion have long intertwined and conflicted with each other. In his actions Monday, especially with the stem cell decision, Obama is emphasizing more the science than the religion, when compared with his predecessor, science policy experts say. But they acknowledged politics is still involved.

Don’t expect stem cell cures or treatments anytime soon. One company this summer will begin the world’s first study of a treatment using human embryonic stem cells, in people who recently suffered spinal cord injuries. Research institutions on Monday were gearing up to ask for more freely flowing federal money, and the National Institutes of Health was creating guidelines on how to hand it out and include ethical constraints. It will be months before the stem cell money flows; the average NIH stem cell grant is $1.5 million spread out over four years.

In Congress, Reps. Diana DeGette, D-Colo., and Mike Castle, R-Del., said they would seek a quick vote on legislation to codify Obama’s order in federal law, after failing twice in the past to overturn Bush’s restrictions. DeGette said she doesn’t want stem cell research to become “a pingpong ball going back and forth between administrations.”