Initiated and hosted by the University of Hong Kong (HKU)’s Institute for Climate and Carbon Neutrality (ICCN), Hong Kong Climate Week 2026 marks its opening today under the theme “From Mitigation to Adaptation — Bridging Global Consensus and Local Implementation.” The week-long event aims to harness Hong Kong’s unique strengths as an international financial centre and a global connectivity hub to accelerate a just, inclusive and resilient net-zero transition. It also underscores Hong Kong’s role as a “two-way bridge,” connecting the Chinese Mainland with the world, advancing the deployment of climate technology, and channelling green finance.

The HKU Musketeers Foundation Institute of Data Science (HKU IDS) at the University of Hong Kong (HKU) will host the Hong Kong Global AI Governance Conference 2026 on 10–11 April at the Rayson Huang Theatre. The Conference will bring together scholars, policymakers, and industry leaders from around the world to discuss emerging issues in artificial intelligence governance.

Free-electron lasers can be tuned to operate over a wide range of wavelengths, but they conventionally require large-scale facilities. Researchers from The University of Osaka show that laser wakefield acceleration can dramatically miniaturize this technology by improving plasma stability and electron beam quality. Their study demonstrates such lasers in the extreme ultraviolet, with the ultimate goal of further refining the technology to operate at x-ray wavelengths.

Emissions of NOx and carbon monoxide have dropped on the city's streets since 2005, according to research from University of Utah atmospheric scientists that could help Utah address its air quality problems. Pollution reductions stem from cleaner cars, tougher regulations and traffic levels that have not rebounded following pandemic lockdowns.

A new study highlights a critical misunderstanding in how biochar is used to fight climate change and improve soils, warning that oversimplified claims could undermine both scientific progress and carbon markets.

A new study reveals that combining biochar with beneficial soil bacteria can significantly improve phosphorus availability, reshape plant development, and increase crop yields in greenhouse-grown cherry tomatoes.

A new study has revealed that excavated soils from urban construction sites represent a previously overlooked source of greenhouse gas emissions, while also highlighting practical strategies to significantly reduce their climate impact.

Coastal wetlands are among the planet’s most effective natural carbon sinks, but their ability to store carbon is increasingly threatened by climate change and human activity. Now, a new field study suggests that adding biochar to these ecosystems could significantly boost their carbon storage capacity, with tidal forces playing a surprisingly beneficial role.