Everybody in the Pool

E131: The Shark Tank-Style Fix for Climate Philanthropy with 1.5°Climate

Apr 16, 2026
Greg Rock, Executive Director of 1.5°Climate, leads a national donor collaborative that pre-vets high-impact climate opportunities and runs Shark Tank-style pitch events. He discusses donor paralysis, how virtual pitchfests connect everyday donors to vetted climate projects, the catalytic/leverage/gap-filling criteria, and innovations like next-gen geothermal and agrivoltaics.
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ANECDOTE

Greg's Path From Engineer To Donor Connector

  • Greg moved from energy engineering to policy work then to 1.5°Climate after seeing gaps between technology, policy, and the money needed to scale solutions.
  • He found nimbleness valuable: the org shifted from federal to state/local focuses after the 2024 election.
INSIGHT

Solving Donor Paralysis With Free Vetting

  • Founder Ning created 1.5°Climate to solve 'donor paralysis' — philanthropists who care but lack time/knowledge to vet climate opportunities.
  • Ning funds operations so membership and donor services stay free, lowering barriers to entry.
ADVICE

Structure Vetting Around Themes And Landscape Work

  • Use a steering committee and landscape assessments to focus vetting on themes and geographies, then interview hundreds of orgs to find the handful worth elevating.
  • Host ~20 curated pitch events yearly so donors see only pre-vetted, high-impact opportunities.
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