Rice is a staple food for more than half of the world’s population, but in some mining-impacted regions, paddy soils can contain elevated levels of arsenic and antimony. These toxic metalloids can move from soil into rice plants, raising concerns for food safety and human health. A new study published in Biochar reports a promising strategy: a magnetic silicon-enriched biochar gel that can immobilize both arsenic and antimony in contaminated paddy soil and reduce their accumulation in rice grains.

New research from Virginia Tech is poised to upend how scientists think about the structure of these tiny airborne droplets and what that means for predictions around air quality, pollution spread, and climate models.

Researchers from the University of Copenhagen have identified a previously unknown protein that may help explain how plants managed to colonize land more than 400 million years ago. The protein was studied in moss, and the new findings contribute to our understanding of plant evolution and life on Earth.

Biochar is often described as a climate-smart soil amendment because it can improve soil quality while storing carbon for long periods. But once biochar is added to soil, it does not stay unchanged. Rain, drying, minerals, oxygen, and microorganisms gradually alter its surface, chemistry, and environmental functions. For saline soils, where salt stress already limits crop production across many agricultural regions, scientists have had limited information about how biochar changes over time.

Tea is one of the world’s most widely consumed beverages, but the soils that sustain tea plantations are under growing pressure. Long-term fertilizer use, monocropping, soil acidification, nutrient loss, heavy metal contamination, and climate stress are threatening both tea productivity and environmental safety. A new review published in Biochar examines how biochar, a carbon-rich material produced by heating biomass under limited oxygen, could become a practical tool for more sustainable tea cultivation.

Scientists have identified the two biggest reasons that once-pristine rivers across the Arctic are growing cloudy with toxic orange iron particles that smother insects and suffocate fish.