Quarries and quarrying -- Environmental aspects  

The National The New Conquistadors

Five hundred years later, there are some – particularly in the indigenous communities of Latin America – who are seeing this as new era of economic conquest, one with significant environmental and social consequences. This time, the new "conquerors" are Canadian mining companies. These "new conquistadors" have generated enormous wealth for Canada and the countries in which they do business. Canadian mining ...
  • 2013
  • 00:25:48
  • 13-14
  • Added on: 12/06/2013

The Nature of Things Arctic Meltdown: A Changing World (Part 1 of 3)

In Episode 1 of the Arctic Meltdown series, we see the changes that are upsetting the scientific predictions of the impact of climate change on the Arctic. Now, one sobering forecast is that the Arctic Ocean will be seasonally ice free by the summer of 2013. This possibility is what drives environmentalists to identify ways to minimize the changes affecting ...
  • 2009
  • 00:44:38
  • 9-12
  • Added on: 06/14/2013