Yet they must not lose the support of the environmental lobby or local Conservative councillors.
The green belt also formed a tangible focal point for what we now call the environmental lobby.
One result of the Administration's plan may be to split the environmental lobby.
The race turned into a controversial issue, particularly in India, as environmental and religious lobbies objected to this racing.
As for the environmental lobbies and lobbyists, they do not always help themselves either.
In other words, the numbers kept changing, often in ways that led the environmental lobby to challenge the regulators.
But the outcry from Democrats and the environmental lobby was mind-boggling.
In November, he gave in to pressure from the environmental lobby and delayed the decision on the pipeline until after the 2012 election.
But the environmental lobby, she says, will have to accept the fact that the rules of engagement have changed.
Certainly the environmental lobbies are becoming increasingly sophisticated about both economics and the political need to give business room to maneuver.