Now showing items 81-100 of 401

    • Monitoring of Portovaya gas flares

      Elvidge, Christopher; Zhizhin, Mikhail; Taber, Kelly; Bazilian, Morgan; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-09-12)
      Using a proprietary Visible Infrared Imaging Radiometer Suite (VIIRS) Nightfire clustering algorithm, Payne Institute scientists are monitoring two flares from Liquified Natural Gas (LNG) production facilities owned by Gazprom near Portovaya, Russia.
    • Closing the energy poverty gap in Africa using landfill gas

      Freeman, Baba; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-09-08)
      Energy poverty is widespread in African countries and power generation capacity has continued to lag population and economic growth. The prospects for adding generation capacity are currently diminished as global financial institutions reduce lending for carbon-based energy developments in response to the adverse effects of climate change. Concurrently, large population centers in Africa continue to generate waste that can be utilized for power generation on competitive terms using landfill gas. Power generation from landfills also has the benefit of reducing greenhouse gas emissions associated with each landfill and displacing gasoline and diesel demand from use in transportation and backup power generation. Despite these attributes, the uptake of landfill gas power across Africa has been negligible. This paper highlights economic feasibility assessments of African landfill power generation projects from literature and develops options for policymakers to boost landfill gas power penetration on the continent. It concludes by proposing guidelines to enable policymakers to recognize political and market constraints and incorporate potential solutions to these constraints into future policies.
    • Shifts in the energy workforce

      McKennie, Caitlin; Bazilian, Morgan; Handler, Bradley P.; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-09-06)
      The recent passage of the Inflation Reduction Act heralds an unprecedented era of climate investment for the U.S. Such investment brings with it the promise of new jobs across the clean energy landscape. For rural communities that have historically depended on fossil fuel development or use, however, included several in Colorado, the outlook is at least more complicated. Nearer term, commitments in CO to close down coal plants threaten a number of jobs in specific communities. And longer term, the weaning off of oil use points to declines in employment in that sector as well.
    • On the stability of a wormhole in the maximally-extended Reissner-Nordström solution

      DeMott, Ross; Major, Sam; Flournoy, Alex
      We consider the stability of the maximally-extended Reissner-Nordström solution in a Minkowski, de Sitter, or anti-de Sitter background. In a broad class of situations, prior work has shown that spherically symmetric perturbations from a massless scalar field cause the inner horizon of an RN black hole to become singular and collapse. Even if this is the case, it may still be possible for an observer to travel through the inner horizon before it fully collapses, thus violating strong cosmic censorship. In this work, we show that the collapse of the inner horizon and the occurrence of a singularity along the inner horizon are sufficient to prevent an observer from accessing the white hole regions and the parallel universe regions of the maximally extended RN space-time. Thus, if an observer passes through the inner horizon, they will inevitably hit the central singularity. Throughout this article, we use natural units where c = G = 4 {\pi} {\epsilon}_0 = 1.
    • Mines Geophysics: revealing the dynamics of the Earth, Spring 2022

      Colorado School of Mines. Department of Geophysics
    • Geophysics: revealing the dynamics of Earth, Fall 2021

      Colorado School of Mines. Department of Geophysics
    • Geophysics: revealing the dynamics of Earth, Spring 2021

      Colorado School of Mines. Department of Geophysics
    • Geophysics: revealing the dynamics of Earth, Fall 2020

      Colorado School of Mines. Department of Geophysics
    • Geophysics: revealing the dynamics of Earth, Fall 2019

      Colorado School of Mines. Department of Geophysics
    • Geophysics: revealing the dynamics of Earth, Fall 2018

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Fall 2017

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Fall 2016

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2015

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2014

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Summer 2013

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Summer 2012

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2011

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2010

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2009

      Colorado School of Mines. Department of Geophysics
    • Geophysics, Colorado School of Mines, Spring 2008

      Colorado School of Mines. Department of Geophysics