<p>CHICAGO - Pittsburgh is home to a new liberal funding organization that lists its priorities as the local environment, land use and "sustainability." However, its affiliations raise questions about its real purpose.</p>
<p>Known as the Tides Center for Pennsylvania, formerly the Tides Center for Western Pennsylvania, it is a creation of the Tides Foundation and Center, headquartered in San Francisco, and two Pennsylvania-based foundations -- the Vira Heinz Endowment and the Howard Heinz Endowment-- chaired by Teresa Heinz Kerry, heir to the Heinz food company fortune and wife of Democrat presidential contender Sen. John Kerry of Massachusetts.</p>