By the mid-1970s, forces opposing uncontrolled growth had become stronger than those favoring development.
Upper-level winds favored development, and the system slowly became better organized.
The department's research program now favors development of nuclear energy and coal.
Mr. Yassky has said he could not support the project at its current size, but favors development on the site.
He said he favored commercial development: "What we really need is more jobs for the people who live here now."
Tuesday's report will provide a political lift for completing guidelines that favor commercial development.
But if the majority favors development over a big park, they say, they will abide by that decision.
It will investigate whether conditions there have favored development of microbial life and its preservation in the rock record.
Conditions favored further development, including low wind shear and warm water temperatures.
Most Utah politicians favor development in the region and denounced the monument designation.