Mines Repository

Recent Submissions

  • PublicationOpen Access
    Artisanal and small-scale mining developing in Chile: impact and structural barriers to formalization
    (Colorado School of Mines. Arthur Lakes Library, 2026-04-10) Guajardo Retamales, Isabel; Kamurai, Clarkson; Handler, Brad; Lange, Ian; Colorado School of Mines. Payne Institute for Public Policy
    Artisanal and Small-Scale Mining (ASM) plays a meaningful, though often understated, role in Chile's mining sector and regional economies. It is estimated to employ approximately 8% of the mining-related workforce across all minerals, both directly and indirectly. It contributes around 0.072% of national GDP and supports the livelihoods of an average of 21 people per active operation. While its aggregate economic footprint is modest at the national level, ASM's social, territorial, and institutional relevance is significant, particularly in mining-dependent regions.
  • PublicationOpen Access
    Tracking and transacting clean natural gas: operationalizing environmental attribute tokens
    (Colorado School of Mines. Arthur Lakes Library, 2026-04-07) O’Byrne, Liam; Handler, Brad; Colorado School of Mines. Payne Institute for Public Policy
    There is an emerging need for companies to track and disclose the carbon intensity of the natural gas and other fossil fuel-based products they buy. This is due to a regulatory push, including in the European Union and California, as well as expectations that corporations will follow through on stated voluntary commitments to decarbonize[1]. For producers of these fuels, documenting carbon intensity, at least at scale, requires systems that standardize — and make very easily auditable — the inputs and processes involved in determining that intensity.
  • PublicationUnknown
    Ras Laffan LNG thermal profiles suggest an operational shift at multiple trains
    (Colorado School of Mines. Arthur Lakes Library, 2026-04-10) Zhizhin, Mikhail; Bazilian, Morgan; Colorado School of Mines. Payne Institute for Public Policy
    New VIIRS Nightfire analysis indicates that several sources in the Ras Laffan LNG cluster may contain both compressor and flare emissions within a single satellite pixel, with March 2026 observations pointing to a possible change in operating regime.
  • PublicationUnknown
    Nuclear and SMR non-fuel critical minerals supply chains: an emerging fourth value chain
    (Colorado School of Mines. Arthur Lakes Library, 2026-03-11) Bala, Kruthika A.; Johnston, Robert J.; Colorado School of Mines. Payne Institute for Public Policy
    As Canada expands its nuclear ambitions through small modular reactors (SMRs) and legacy technologies such as CANDU and AP-1000 reactor designs, a new strategic value chain for critical minerals demand is emerging. This value chain is built not only on uranium but also on an additional narrow set of non‑fuel materials and qualification regimes that are thin, slow to change and hard to duplicate. In this context, the nuclear sector is emerging as a fourth value chain for critical minerals, alongside clean energy, defence, and artificial intelligence/semiconductors.
  • PublicationUnknown
    Every time the world asks "Who are the Kurds?" there is a crisis in the Middle East
    (Colorado School of Mines. Arthur Lakes Library, 2026-03-16) Aqrawi-Whitcomb, Peri-Khan; Colorado School of Mines. Payne Institute for Public Policy
    Whenever a "Who Are the Kurds?" explainer appears in your feed, and they're landing right now, you already know two things: there is war somewhere in the Middle East, and someone is hoping the Kurds will help win or contain it.