Deutsche Welle: A new study published Thursday says none of the leading industrialized nations have come close to meeting their promises to slash greenhouse gas emissions, with the US, Canada and Russia trailing especially far behind. Compiled by environmental group WWF and international financial services provider Allianz and released four days prior to the G8 summit in Japan, the study called “G8 Climate Scorecards” found that all the leading industrialized countries had failed to make …