Weeds Worldwide

Invasive species pay no attention to political boundaries, a good reason why we need a global effort to prevent invasives from being introduced into new regions. Taking a pointer from the U.S., whose Congress recently introduced legislation to create the National Aquatic Invasive Species Act, Canadian officials are considering similar legislation for their own country. After a meeting of the U.S.-Canada International Joint Commission, members spoke about the problems caused by invasive species that both countries must face, from the spread of the Asian carp to the potential hazards of contaminated ballast water.