What if it isn't something like windmills that clearly are a net improvement for society over coal, and the objections aren't merely 'not a nice view'? For example, suppose some big corp wants to frack the environment to pieces for big bucks, leaving a poisoned, nearly unlivable habitat for the nearby village.
How can we safeguard against this, in a way that the village inhabitants can protest against such threats with real teeth, without grinding everything to a halt that is a mere nuisance but offers real benefits to society?