Trump orders restrictions on export of critical minerals scrap, White House officials say U.S. President Donald Trump on Thursday signed an order giving federal officials the ‌power to block exports ...

Learn about the EU’s plan to shift to a circular economic model to make Europe cleaner and more competitive. Subscribe to this topic See all explainers on this topic The Earth’s resources are limited.

Accurately measuring the chirality of carbon nanotubes is a challenge in the absence of pure reference samples. Here, the authors combine hyperspectral imaging and chiroptical spectroscopy to quantify ...