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News from CAS Headquarters

Updates every hour. Last Updated: 29-Dec-2025 19:11 ET (30-Dec-2025 00:11 GMT/UTC)

26-Dec-2025

Progress persists for low-baseline SDGs, while high-baseline goals stagnate or reverse

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

With only five years until the 2030 deadline for achieving the U.N. Sustainable Development Goals (SDGs), a new international study reveals uneven progress in achieving the goals since their adoption in 2015. The paper, recently published in Proceedings of the National Academy of Sciences (PNAS), reveals that global progress on numerous SDGs with high initial benchmarks has either stalled or gone into reverse. In contrast, SDG indicators with lower baseline performance continue to register gains. Researchers caution that the vast majority of countries will fail to meet their 2030 SDG targets under current trends.

Journal: Proceedings of the National Academy of Sciences

19-Dec-2025

Researchers show impact of mountain building and climate change on alpine biodiversity

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

Researchers from Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences, along with collaborators, explored the impact of mountain building and climate cooling over 30 million years across five major mountain systems in the Northern Hemisphere and revealed that these processes are key drivers of the rich plant diversity found in the Earth's alpine biome.

Journal: Science Advances

16-Dec-2025

Scientists discover how cell walls guide stem cells

Chinese Academy of Sciences Headquarters
Peer-Reviewed Publication

A new study led by Dr. YANG Weibing from the Center for Excellence in Molecular Plant Sciences of the Chinese Academy of Sciences has discovered a hidden "molecular gatekeeper" that controls the stiffness of these walls, directly guiding the fate of plant stem cells.

Journal: Science

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News from CAS Institutes

Updates every hour. Last Updated: 29-Dec-2025 19:11 ET (30-Dec-2025 00:11 GMT/UTC)

24-Dec-2025

Triboluminescence of metal halide perovskite films

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Peer-Reviewed Publication

The triboluminescence (TL) of metal halide perovskite (MHP) films is found for the first time. Scraping the MHP film with a lower Fermi-level material (e.g., Cu) causes electron transfer from the MHP, creating a positive surface electric field, which stretches the MHP lattice, enhancing the photoluminescence (PL). Scraping the MHP film with a higher Fermi-level material (e.g., Al), instead, quenches the PL. This work reveals the unique TL mechanism in MHPs, opening up new research avenues for appealing perovskite materials.

Journal: Light Science & Applications
Funder: Strategic Priority Research Program of the Chinese Academy of Sciences, DICP I202456, Liaoning Revitalization Talents Program

23-Dec-2025

New study uncovers the lingering, evolving threat of "thirdhand smoke" in our homes

Institute of Atmospheric Physics, Chinese Academy of Sciences
Peer-Reviewed Publication

While the dangers of secondhand smoke are widely recognized, a new study reveals a more persistent and stealthier hazard hiding in our indoor spaces: "Thirdhand Smoke." This residue, which lingers on surfaces long after a cigarette is put out, is not just a stale smell but a dynamic source of continuous air pollution.

Journal: Building and Environment

22-Dec-2025

Study quantifies ‘hot drought’ impact: 2025 Los Angeles wildfire risk amplified by up to 210%

Institute of Atmospheric Physics, Chinese Academy of Sciences
Peer-Reviewed Publication

As the one-year anniversary of the devastating early January 2025 wildfires in Los Angeles approaches, a pressing question remains: what made these fires, among the most destructive in the region's history, so extreme? New research now provides a quantifiable answer, pinpointing the critical role of combined high temperatures and drought conditions.

Journal: Advances in Atmospheric Sciences

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