Ahmed Elnewishy, an associate professor at Cairo University, holds a femur bone sample from mummified human remains that was studied at Berkeley Lab’s Advanced Light Source synchrotron. Elneshy and Cairo University postdoctoral researcher Mohamed Kasem studied dozens of ancient Egyptian bone samples and some soil samples during a two-month visit […]

A firestorm on Mirror Plateaun Yellowstone Park, 1988. Jim Peaco/US National Park Service As the east coast bushfire crisis unfolds, New South Wales Premier Gladys Berejiklian and Rural Fire Service operational officer Brett Taylor have each warned residents bushfires can create their own weather systems. This is not just a figure of […]

Princeton University researchers have found that nature has developed a backup method for converting atmospheric nitrogen into the nutrient form critical to plant growth and soil fertility. The researchers report that the process known as nitrogen fixation can be carried out by the metal vanadium in ecosystems — particularly in […]

The chambers attached to trees were used to measure the greenhouse gas N2O emissions in this study. Credit: Mari Pihlatie A recently published study, completed by researchers from the University of Helsinki together with Dr Katerina Machacova, a visiting scholar, demonstrates that boreal forests of the Northern Hemisphere are sources […]