Nuclear Issues

China will triple the number of nuclear power plants it has in operation by 2020 according to official plans, and the country’s nuclear fleet will increase 20-fold by 2050 under some not-yet-approved proposals. But how and where will China get the uranium to fuel them all? Will China need to resort to breeder reactors and reprocessing, with all the proliferation problems they incur? Or is there another way? In this journal article for the Bulletin of the Atomic Scientists, Hui Zhang suggests that between China’s domestic uranium mining, uranium purchased on the international market, and uranium mined by Chinese-owned companies overseas, China could meet even the most ambitious target, thus avoiding the troublesome and dangerous path of reprocessing.

Probabilistic estimates of the cost and performance of future nuclear energy systems under different scenarios of government research, development, and demonstration (RD&D) spending were obtained from 30 U.S. and 30 European nuclear technology experts. The majority expected that such RD&D would have only a modest effect on cost, but would improve performance in other areas, such as safety, waste management, and uranium resource utilization. The U.S. and E.U. experts were in relative agreement regarding how government RD&D funds should be allocated, placing particular focus on very high temperature reactors, sodium-cooled fast reactors, fuels and materials, and fuel cycle technologies.

In order to expand nuclear power energy in desalination and increase competitiveness in the global nuclear power market, many developed countries with strong nuclear technology have realized the importance of Small Modular Reactors (SMR) and initiated heavy research and development in SMR．The Advanced Small Pressurized Water Reactor (ASPWR) is characterized by great advantages, both in safety and economic mattters. It can be used in remote power grids and replace mid／small size fossil plants economically．This paper reviews the history and current status of SMR and ASPWR，and also discusses the design concepts, safety features and other advantages thereof.

"Without energy, there is no economy. Without climate, there is no environment. Without economy and environment, there is no material well-being, no civil society, no personal or national security. The overriding problem associated with these realities, of course, is that the world has long been getting most of the energy its economies need from fossil fuels whose emissions are imperiling the climate that its environment needs."

"I would urge every scientist and engineer with an interest in the intersection of S&T with sustainable well-being...to 'tithe' 10% of your professional time and effort to working in these and other ways to increase the benefits of S&T for the human condition and to decrease the liabilities. If so much as a substantial fraction of the world's scientists and engineers resolved to do this much, the acceleration of progress toward sustainable well-being for all of Earth's inhabitants would surprise us all."

The notion of "tribal culture" in the West often brings to mind images of backward, uneducated and unsophisticated societies. Perpetual chaos in states like Afghanistan, Iraq and Somalia, for instance, is often attributed to tribal culture. It is a sweeping judgment as in many cases geopolitical, historical and even religious factors often play a more significant role than the impact of tribal ethos in defining what causes underdevelopment and violence. Pashtun tribal culture is generally portrayed as the root cause behind their support and sympathy for the Taliban and al-Qaeda. This analysis investigates these notions by studying the profiles of the Pashtun tribes that populate the seven tribal agencies that form Pakistan's Federally Administered Tribal Areas.

"How has a state whose founding fathers were secular people who believed in rule of law and democracy drifted toward religious extremism and authoritarianism? Three primary factors—variations on the Triple A theory of influence (Allah, the Army, and America)—have led Pakistan down this path: a powerful independent military, the mushrooming of religious militant groups, and the hydra-headed monster that is the intelligence services."

Negotiations on a fissile material cut-off treaty (FMCT) may soon be launched at the Conference on Disarmament in Geneva after several years' delay caused by debates over its scope and linkage to nuclear disarmament measures. Fissile material, in practice plutonium or HEU, is the fundamental ingredient in all nuclear weapons. It is also the most difficult and expensive part to produce. A global, verified ban on the production of fissile materials for nuclear explosives would be a key building block in a comprehensive strategy to contain and eliminate nuclear weapons.