Canada Studies Shale Gas Impact

Tuesday, May 6, 2014 @ 09:05 AM gHale


The North American energy landscape is undergoing dramatic change. Unconventional oil and gas resources are fueling an energy boom that is having profound economic, environmental, and social impacts across much of the continent.

At the forefront of this change is shale gas, which is a “game changer” because it is abundant, often close to major markets, and relatively inexpensive to produce. Understanding potential impacts is critical for policy makers as they consider how best to manage this resource.

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Wanting to know answers before everything goes ahead full blast, Environment Canada asked the Council of Canadian Academies to assemble a multidisciplinary expert panel to consider the state of knowledge of potential environmental impacts from the exploration, extraction, and development of Canada’s shale gas resources.

The Council’s report presents a comprehensive examination of shale gas development in Canada.

It does not, however, determine the safety, nor the economic benefits, of development. It reviews the use of new and conventional technologies in shale gas extraction, and examines several issues of concern including potential impacts on surface water and groundwater, greenhouse gas emissions, cumulative land disturbance, and human health. The report also outlines approaches for monitoring and research, as well as mitigation and management strategies.

Although the technologies and techniques used in extracting shale gas are a given, there needs to be more research and information on the potential environmental impacts that could result from this process.

In Canada, shale gas development moved forward in British Columbia and Alberta while potential development is still undergoing exploration in Quebec, New Brunswick, and Nova Scotia.

Unlike the United States, Canadian development has moved at a slower pace. This slower pace of development presents a unique opportunity for Canada to take the time to explore and determine the proper management practices to develop its shale gas resources responsibly.

For Canada, regional context matters. Environments, ecosystems, geographies, and geologies are not uniform across the country. Therefore, consideration of different potential regional impacts need close consideration when determining the suitability for shale gas development.

Overall, the panel found well-targeted science will ensure a better understanding of the environmental impacts of shale gas development. Currently, data about environmental impacts are neither sufficient nor conclusive.

The Panel’s assessment focused on a number of environmental impacts, including well integrity, water (groundwater and surface), greenhouse gas Emissions, Land Impacts and Seismic Events, Human Health, and monitoring and research.

Click here to download the report.



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