"Millions of cattle graze on public lands all over the West and have done so for more than a century. But a new complaint filed by an environmental group charges that despite Clinton-era moves to examine and diminish the impact of grazing in the arid West, Interior Department employees have blocked the use of federal data on the impact in regional scientific studies.

The actions by mid-level Interior employees 'seriously compromise' the scientific integrity of efforts to figure out how and why western ecosystems are changing, said the complaint, filed by Public Employees for Environmental Responsibility, a Washington-based environmental group.

The complaint charges that officials of the Bureau of Land Management not only effectively prevented ecosystem scientists from making grazing a significant part of their regional analyses but also failed to inform them of data gathered by the bureau."

Felicity Barringer reports for the New York Times' Green blog December 1, 2011. [2]