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Environmental News Network -- Know Your Environment
Pine trees become temporarily sterile when exposed to ultraviolet radiation as intense as some scientists believe the Earth experienced 252 million years ago during the planet’s largest mass extinction, lending support to the theory that ozone depletion contributed to the crisis.
Migratory birds use a magnetic compass in their eye for navigation. Its basic sensory mechanisms have long remained elusive, but now researchers reveal exactly where in the eye, the birds’ control center for navigation is situated.
Carleton University students are consulting with small-scale farmers in Peru as part of a partnership with the international development organization Cuso International.
Students in the Bachelor of Global and International Studies program (BGInS) at Carleton University are gaining hands-on experience while improving food security in Peru thanks to an innovative partnership with Cuso International. The partnership, which began in January, is the first of what Cuso International hopes will be a new wave of e-volunteering opportunities for students at Carleton and across Canada.
Dr Lori Lach, Senior Lecturer at JCU, said the study compared the feeding habits of healthy bees to those infected with the gut parasite Nosema ceranae.
Although ozone pollution is dropping across many parts of the United States, western Europe and Japan, many people living in those countries still experience numerous days every year in which levels of the lung irritant exceed health-based standards.
Ultrafine aerosol particles found in polluted urban air can contribute to more intense storms in the Amazon rainforest, with potential knock-on effects for weather and climate patterns in the region and beyond, researchers have warned.
