Habitat loss in US is cause in monarch butterfly decline
The main cause of declines in the monarch butterfly population is loss of habitat in breeding grounds in North America, particularly the U.S. Corn Belt, says research by the University of Guelph.
Wetlands have role in methane production
A study by a University of Guelph researcher, published in Global Change Biology, says wetlands are the likely source of a recent and surprising increase in emissions of methane.
Canada to phase out nonmedical antibiotic use in livestock
Health Canada announced a three-year phase-out of subtherapeutic use of antibiotics in food animals, a step that parallels U.S. action.