High levels of air pollution are leading to growing concerns for our everyday health. Dr William Chung argues that access to cheaper natural gas on world markets will reduce current levels of pollution from power plants and allow Hong Kong to enjoy a coal and nuclear free future

Professor Chi-yuan Liang examines Taiwan’s constraints around natural gas and renewables, taking into account the results of a recent referendum expressing opposition to expansion of coal-fired plants, and proposes an optimal energy mix for 2025

In a chaotic world with widening inequality, energy resource depletion, ecological imbalance, and global warming, Professor Chao-shiuan Liu’s Wang Dao Sustainability Index prioritises sustainable development in ranking the performance of countries around the world