• [2013-01-07] Oil sands leave toxic traces
  + http://www.pnas.org/content/early/2013/01/02/1217675110 + http://www.bbc.co.uk/news/science-environment-20933000
  in Tietoukka Monitor > 2013 > 2013-02 with alberta canada ecosystems lakes pollution tar_sands
• [2013-06-01] Tar sands supporters suffer setback as British Columbia rejects pipeline
  + http://news.mongabay.com/2013/0604-gen-enbridge-tar-sands.html
  in Tietoukka Monitor > 2013 > 2013-22 with alberta british_columbia canada pipelines tar_sands
• [2013-06-10] Potentially 'catastrophic' changes underway in Canada's northern Mackenzie River Basin: report
  + https://dl.dropboxusercontent.com/u/3960397/Rosenberg%20Final.pdf + https://docs.google.com/file/d/0B1bF9zth54L8TWoyNHo3aXdwbzA/edit + http://rosenberg.ucanr.org/ + http://rosenberg.ucanr.org/RosenbergMackenzieReportFinal.pdf + http://blogs.nature.com/news/2013/06/report-highlights-development-threats-on-canadian-watershed.html
  in Tietoukka Monitor > 2013 > 2013-24 with biodiversity canada ecosystems hydrological_cycle mackenzie_river_basin tar_sands
• [2013-06-18] Nobel Laureates call on President Obama and Secretary Kerry to reject the Keystone XL pipeline
  in Tietoukka Monitor > 2013 > 2013-25 with alberta tar_sands usa

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