A new regional assessment shows that Southeast Asia is a major net source of greenhouse gases, with land-use change and rising fossil fuel use overwhelming natural carbon sinks, reservoirs that store carbon-containing chemical compounds for a long period. 

Perfluoroalkyl substances (PFASs) refer to a group of man-made chemicals that are widely used due to their water- and stain-resistant properties and exceptional chemical stability. However, they often accumulate in the environment, causing environmental and health hazards. A team of researchers has recently shown how zinc oxide nanocrystals capped with specific ligands can efficiently defluorinate perfluorooctanesulfonic acid, a well-known perfluoroalkyl substance. This approach could solve PFAS recycling challenges.

Aviation’s climate impact extends beyond carbon dioxide emissions. A new study from Chalmers University of Technology and the University of Gothenburg, Sweden, and Imperial College, UK, reveals that contrails can represent a significant portion of aviation’s overall climate cost. The study also shows that climate impact can be reduced by optimising flight routes.

In a new article in Nature Communications, The social costs of aviation CO₂ and contrail cirrus, the researchers demonstrate that both CO₂ emissions and contrail formation contribute materially to aviation’s climate impact – and that the associated societal costs differ substantially depending on weather patterns and routing decisions. They find that, at the global level, contrails account for about 15 percent of aviation’s climate impact when measured in economic terms.

Researchers developed DeepMet, a new AI system that sharply improves long-range weather forecasting across the U.S. The model predicts key temperature and humidity patterns up to 45 days ahead with far greater accuracy than current systems, helping identify extreme heat and cold events earlier. DeepMet offers faster, more reliable guidance for climate preparedness and public-health protection.

You're invited! Join us for a free, live online webinar featuring Prof. Dato’ Dr. Agamutu Pariatamby FASc, Senior Professor and globally recognized expert in sustainable waste and climate solutions from the Jeffrey Sachs Center on Sustainable Development at Sunway University, Malaysia.

Researchers from the University of Maine and Bigelow Laboratory for Ocean Sciences, have developed a faster, more accurate way to detect a toxic species of algae known as Pseudo-nitzschia australis (P. australis). It's a test that uses a quantitative version of the Polymerase Chain Reaction (qPCR) to pinpoint P. australis in environmental DNA (eDNA) samples using a unique genetic marker. By being faster and more accurate, this test can help the shellfish industry better track and respond to harmful algae blooms. 
 

To understand the present and try to predict the future, the past is a valuable tool. Researchers aim to understand the dynamics of the East Antarctic Ice Sheet in the Lützow-Holmbukta region with the goal of determining if rapid ice sheet thinning (from approximately 9,000 to 6,000 years ago) was followed by stabilization or re-thickening. This information is key to helping predict future responses to ice sheet thinning, as well as to get a clear picture of the current behavior of ice sheet thinning across the Antarctic. With this, future responses to climate change can be improved.