Duluth News Tribune: Nasty species such as deer ticks and poison ivy may proliferate inside their current range and spread into new areas as carbon dioxide levels increase and climate change continues into the future. That’s the finding of a new report released Thursday by the National Wildlife Federation — just in time to push support for climate-change legislation expected soon in the U.S. Senate. The U.S. House already has passed climate legislation. While climate-change skeptics say the …