‘Ambassadors’ reclaiming vacant property in the Hilltop Share this post This year, Growth Through Energy and Community Health (GTECH) Strategies has launched ReClaim South: Sustaining Momentum, a continuation of its 2014 program aimed at giving South Pittsburgh residents, also known as neighborhood ambassadors, the ability and support to lead individual green space development projects. GTECH’s ambassador-driven development model has led to more than 80 volunteers and 328 hours of community service invested in South Pittsburgh neighborhoods including Beltzhoover, Allentown, Mount Oliver, Knoxville, and St. Clair.