What happens to the leaders of tomorrow if AI is quietly eliminating the entry-level jobs that used to build them? In this inaugural episode of The Ground Floor, Christina Greenberg sits down with Ellen Weinreb — founder of Weinreb Group Sustainability Consulting and one of the foremost recruiters in the corporate sustainability space — for an honest, wide-ranging conversation about purpose-driven careers, leadership development, and the forces reshaping the workforce. From greenhouse gas accounting to the disappearing junior role, they dig into what organizations are actually doing to build talent pipelines — and what they're getting wrong.

They also get personal. As two recruiters with over 20 years in the field — and as parents of college-aged kids — Christina and Ellen wrestle with the AI paradox facing today's graduates: universities are restricting AI use in classrooms while employers expect fluency on day one. Their conversation covers how mid-career professionals can make meaningful pivots into purpose-driven work, what skills are actually growing in the sustainability sector, and why networking — old school, in-person, relationship-first — remains the one constant in a rapidly changing landscape.

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