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This briefing from the World Resources Institute outlines two speculative carbon removal approaches: carbon mineralization and enhanced root crops. It details the theoretical potential, current barriers, and recommended federal research and development funding required to advance these technologies.

This briefing from the World Resources Institute outlines the potential for carbon removal through tree restoration in the United States, detailing the scale of opportunity, estimated costs, and necessary federal policy frameworks to achieve these goals.

This fact sheet from the World Resources Institute (WRI) discusses the role of Direct Air Capture (DAC) in limiting global temperature rise to 1.5 degrees C. It emphasizes that DAC must complement deep greenhouse gas emission reductions and argues for the implementation of social and environmental guardrails, equity-focused policies, and federal support for research and development to ensure the technology is scaled responsibly.