Deep sea mining operations are expected to increase the negative impact on environmental indicators by up to 13 per cent, a change categorized as having 'great' significance, relative to the 'without' DSM scenario, notably through increased coastal vulnerability, pollution, and biodiversity loss.
New model to evaluate impact of extreme events and natural hazards
Engineers have created a sophisticated computer model that tracks how water moves in estuaries -- which is critical for evaluating climate variability and sea level fluctuation impacts for coastal communities.
Deadly rodent-borne hantavirus is an emerging disease with pandemic potential
Virginia Tech researchers seek to understand the environmental factors that influence the distribution of hantavirus in rodent populations across the United States.
Key mechanism to obtain brown algae-derived compounds with biotech applications
Every year, thousands of tons of brown algae are extracted from the seabed to obtain compounds such as alginates, a polymer composed of sugars that has high density and strength, offering potential biotechnological applications. An international team has deciphered the mechanism by which a type of enzyme, called alginate lyase...
Marine shipping emissions on track to meet 2030 goals, but expected to miss 2050 target
The United Nations organization responsible for international marine shipping today approved new emission reduction policies. A new paper highlights the need. Researchers surveyed 149 marine shipping experts in 2021 and found they expect the sector to see a reduction of 30 to 40 per cent in the carbon intensity of...
‘Internet of nature’ helps researchers explore the web of life
A novel paper is widening understanding of how species interact within ecosystems via the so-called 'Internet of Nature.' The paper reveals that species not only exchange matter and energy but also share vital information that influences behavior, interactions, and ecosystem dynamics -- revealing previously hidden characteristics of natural ecosystems.
Drug pollution alters salmon migration
Study reveals commonly detected environmental levels of clobazam -- a medication often prescribed for sleep disorders -- increased the river-to-sea migration success of juvenile salmon in the wild. The research team employed slow-release pharmaceutical implants and animal-tracking transmitters to monitor how exposure to clobazam and the opioid painkiller tramadol --...
Ancient tools from a South African cave reveal connections between prehistoric people
In a cave overlooking the ocean on the southern coast of South Africa, archaeologists discovered thousands of stone tools, created by ancient humans roughly 20,000 years ago. By examining tiny details in the chipped edges of the blades and stones, archaeologists are able to tell how the tools were made...
How much food can the world grow? International team calls for new yield potential estimates
Agronomists question statistical methods used to predict yield potential and 'yield gaps' for major crops. In some cases, yield potential is overestimated, while in others it can be underestimated. It's important to have accurate information so that worldwide agriculture can meet the food demands of the growing global population.
Eight or more drinks per week linked to signs of injury in the brain
Heavy drinkers who have eight or more alcoholic drinks per week have an increased risk of brain lesions called hyaline arteriolosclerosis, signs of brain injury that are associated with memory and thinking problems, according to a new study.