Across the country, activists with ties to the Tea Party are railing against all sorts of local and state efforts to control sprawl and conserve energy. They brand government action for things like expanding public transportation routes and preserving open space as part of a United Nations-led conspiracy to deny property rights and herd citizens toward cities…

The protests date to 1992 when the United Nations passed a sweeping, but nonbinding, 100-plus-page resolution called Agenda 21 that was designed to encourage nations to use fewer resources and conserve open land by steering development to already dense areas. They have gained momentum in the past two years because of the emergence of the Tea Party movement, harnessing its suspicion about government power and belief that man-made global warming is a hoax.

In January, the Republican Party adopted its own resolution against what it called “the destructive and insidious nature” of Agenda 21. And Newt Gingrich took aim at it during a Republican debate in November…

Membership is rising, Mr. DeWeese said, because what he sees as tangible Agenda 21-inspired controls on water and energy use are intruding into everyday life. “People may be acting out at some of these meetings, and I do not condone that. But their elected representatives are not listening and they are frustrated.”