Quantum technologies need one particle of light, or photon, at a time. Quantum light sources also require each photon to be identical in energy. New sheetlike coating protects sources from contamination, improving spectral purity.

Researchers have developed a machine learning approach that can optimize the treatment of livestock manure and predict how valuable nutrients such as phosphorus are distributed during processing. The breakthrough could help transform agricultural waste into safer and more useful resources, while reducing environmental pollution.

In Malaysia, one of the world’s top producers of palm oil, millions of tons of oil palm ash (OPA) are left behind as agricultural waste every year—a disposal challenge that could soon become a climate solution. Now, groundbreaking research from Universiti Sains Malaysia (USM) shows that this humble byproduct can be transformed into a powerful, eco-friendly material capable of capturing carbon dioxide from the air. Published on August 18, 2025, in Carbon Research as an open-access original article, this innovative study was led by Dr. Azam Taufik Mohd Din from the School of Chemical Engineering at Universiti Sains Malaysia’s Engineering Campus in Nibong Tebal, Penang. The team didn’t just repurpose waste—they engineered it. By treating raw oil palm ash with acid, then subjecting it to carbonization and chemical activation using potassium hydroxide (KOH), they created a new material dubbed OPA-KOH(1:2). The result? A tailor-made adsorbent with a highly optimized mesoporous structure—pores so precisely shaped that they allow CO₂ molecules to flow in easily and stick effectively. Despite having a modest surface area of 30.95 m²/g—far lower than many commercial activated carbons—the material achieved an impressive CO₂ adsorption capacity of 2.9 mmol/g. That performance rivals or even exceeds more expensive materials with much higher surface areas, proving that pore architecture matters more than size alone. “This isn’t just recycling—it’s upcycling at the molecular level,” says Dr. Mohd Din. “We’re taking a waste product that often ends up in landfills and turning it into a high-performance tool for carbon capture.”

Electric vehicles (EVs) can have lower fuel costs and reduce emissions relative to cars that use gasoline, but they are only a practical option if drivers have convenient ways to charge them. For people who live in multi-unit dwellings or in urban areas, access to charging infrastructure may be particularly limited, which in turn limits EV adoption.  

In the upper Abbay basin, cradle of the Blue Nile, a team of researchers have predicted soils of the future: what will happen to soil organic carbon if we bet on regenerative agriculture—returning residues, organic manure, cover crops, agroforestry? Their 50-year modelling unveils a mixed picture: yes, land can regain fertility and resilience if we feed soils more; but under warming and increasingly erratic rains, these benefits weaken and vary greatly across territories.

Africa’s agrifood system emits nearly 2.9 billion tonnes of CO₂ equivalent every year—more than a quarter of global sector emissions. An international study compares Africa’s trajectory with China’s and proposes concrete solutions—from water management in rice paddies to modernizing logistics chains—to produce more food without worsening the climate.