22 Mar '13, 12am

Science Matters: Big-picture thinking needed to protect nature

Science Matters: Big-picture thinking needed to protect nature

Although industrial projects like the proposed Enbridge Northern Gateway pipeline or the recently defeated mega-quarry in Ontario typically grab the headlines and bring out public opposition, it's often the combined impacts of a range of human activities on the same land base that threaten to drive nature beyond critical tipping points. Once those are passed, rapid ecological changes such as species extinction can occur. For example, in British Columbia's booming Peace Region , forestry, energy and mineral leases and licences are widespread and often multilayered in the same area. As various industries have exploited these "tenures", a sprawling patchwork of large clearcuts, oil wells, dams and reservoirs, fracking operations and thousands of kilometres of seismic lines, roads and pipelines have come to dominate the landscape. Today, more than 65 per cent of the region has...

Full article: http://www.davidsuzuki.org/blogs/science-matters/2013/03/...

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