Geopolitical and environmental developments are increasing international focus on Antarctica and the Southern Ocean. Stakeholders contend these developments may have political, economic, and security implications for the United States and the rest of the world. Geopolitical concerns center on the rising presence of China and Russia in the Antarctic and the integrity of the Antarctic… Continue Reading Antarctica: Overview of Geopolitical and Environmental Issues
An “advanced nuclear reactor” is defined in legislation enacted in 2018 as “a nuclear fission reactor with significant improvements over the most recent generation of nuclear fission reactors” or a reactor using nuclear fusion (P.L. 115-248). Such reactors include LWR designs that are far smaller than existing reactors, as well as concepts that would use… Continue Reading Advanced Nuclear Reactors: Technology Overview and Current Issues
The diminishment of Arctic sea ice has led to increased human activities in the Arctic, and has heightened interest in, and concerns about, the region’s future. The United States, by virtue of Alaska, is an Arctic country and has substantial interests in the region. Record low extents of Arctic sea ice over the past decade… Continue Reading Changes in the Arctic: Background and Issues for Congress
This report assesses the impact and risks of climate change to United States military installations, conduct of military operations, and mission effectiveness.
Since the start of the 21st century, the U.S. energy system has seen tremendous changes. Technological advances in energy production have driven changes in energy consumption, and the United States has moved from being a growing net importer of most forms of energy to a declining importer—and possibly a net exporter in the near future.… Continue Reading 21st Century U.S. Energy Sources: A Primer