• Scientific Integrity
• Global Warming
• Clean Vehicles
• Clean Energy
• Nuclear Power
• Nuclear Weapons & Global Security
• Food and Agriculture

UCS Leadership Team

• Kathleen Rest, Executive Director

  UCS Executive Director Kathleen Rest, an expert on public health and the environment, oversees the organization’s day-to-day operations. Read Kathleen's biography

• Peter Frumhoff, Director of Science & Policy

  Peter Frumhoff, a global change ecologist with expertise in climate change and tropical forest conservation, ensures that UCS brings robust science to bear on our efforts to strengthen public policies. Read Peter's biography

• Alden Meyer, Director of Strategy & Policy

  Alden Meyer, an expert on international and domestic climate change policy, provides strategic guidance for our advocacy on energy, transportation, agriculture, and arms control issues. Read Alden's biography