Geospatial contributes $21 billion to the Canadian GDPhttp://geospatial.blogs.com/geospatial/2015/04/geospatial-contributed-21-billion-to-the-canadian-gdp.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+typepad%2Fzeissg%2Fgeospatial+%28Between+the+Poles%29