Stephen D. Ziman

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Stephen D. Ziman is a PhD chemist who retired from Chevron Energy Technology Company, having served as a senior staff scientist for health, environment, and safety for over thirty years.

All work from Stephen D. Ziman

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Petroleum Companies Need a Credible Climate Plan

Calls for tighter limits on greenhouse gas emissions have put petroleum companies in the driver’s seat. It’s time for them to develop transparent systems based on standardized, verifiable climate plans.

· November 15, 2018