While the effects of large hydro projects (200 MW) have been well known and documented for over a century, small (up to 10 MW) and medium sized (10 MW to 200 MW) hydroelectric projects involve many of the same impacts per unit of power generated and, cumulatively, the environmental degradation can exceed that of large hydro projects. Small and medium sized hydro projects are situated on smaller and often more sensitive riverine ecosystems; however, like large hydro projects, will also alter the river’s flow regime and can have significant impacts on the aquatic environment, as flow is a major determinant of a river’s ecological characteristics and its aquatic biodiversity.
A recent study examined scaled hydropower impacts in the Nu River basin of southwestern China, where the researchers calculated impact per MW of capacity across 14 metrics between small and large hydropower projects (with small being below 50 MW as defined in Chinese policy). They found that small hydropower dams had greater impact per MW for 9 of the 14 metrics, including length of river channel affected and impact on habitat designated as conservation priorities.
Brook trout spawning in a coldwater stream. Film by Steve Noakes
Groups concerned about Erin’s proposed plant effect on coldwater fish, by Keegan Kozolanka
The Town of Erin (Erin) is in the design phase of a new sewage treatment plant, and the Ontario Rivers Alliance (ORA) is concerned that the sewage plant effluent will endanger some of the most productive and highly valued brook trout populations in the West Credit River. Continue reading
As a basic, the province must have a comprehensive approach to watershed management through flood mapping, mitigation and hazard planning and protection, including services such as wetland protection, climate change adaptation and resilience, biodiversity health and land use planning. In other words, we must be beefing up our public safety and environmental protection efforts, rather than gutting and streamlining key policy and legislation, as well as funding for our regulators.
Join ORA and partners in a project to improve a coldwater Brook Trout fishery and habitat in Hanlon Creek. These Brookies will be jumping for joy when this project is done!!
It has come to ORA’s attention that the Gorrie Dam on the North Maitland River failed as a result of flooding during an extreme rain event on 23 – 24 June 2017, and that Maitland Conservation is considering its options. We understand that no one is more aware of the extremes of a volatile and changing climate than Conservation Authorities, and yours in particular; and we understand the pressure that Conservation Authorities and municipalities are under when communities rally to maintain their coveted mill ponds. However, it is up to all authorities to take a leadership role that places public safety and landscape scale ecological integrity above local individual or group interests.
The focus of the Strategy’s five goals should not just be on “Natural Resources”, but rather on the resilience of the province’s natural heritage landscape, using a watershed approach, in consideration of the cumulative effects of all past, present and future development on our air, land and water. Additionally, the scope of the Strategy must be broadened to encompass a review of all policies, guidelines and legislation that do not support the resiliency, conservation and protection of our streams, rivers, lakes and wetlands in this warming climate. Continue reading
Indigenous communities who have fished, hunted, and lived in Ontario’s north for generations have a unique understanding of how their environment is changing. Elders pass down environmental knowledge that simply doesn’t exist anywhere else. The government and researchers are starting to recognize the value of what elders know and are launching projects to gather traditional knowledge.
The VRS clearly recognizes the serious concerns of the SLCSG, however; we urge caution in the City’s approach to mitigating the algae issue. VRS agrees that action must be taken by the City of Sudbury to resolve the long-standing issue of algae blooms once and for all; however, we differ in the recommended approach.
One of the most popular energy sources for Canada and globally has been hydroelectric power generation, and the provinces of Ontario, Quebec, Manitoba, and British Columbia are big fans of this particular energy source. One of the main reasons it is so popular is due to the abundance of water in Canada in the form of lakes and rivers that run throughout the provinces.
There was an article by the Montreal Gazette written back in 2011 that took a look at the Romaine River in Quebec and how it was about to turn into one of the biggest construction sites in Canada with the installation of 4 dams, 7 dikes, several large canals, and 279 square kilometers of reservoirs, all at the approximate cost of around $8 billion. What decision makers in Quebec failed to realize or choose to ignore is that harmful greenhouse gas (GHG) emissions are generated by reservoirs and they can be extensive and very damaging to the climate. Continue reading
Naomi Oreskes says our fossil fuel strategy ‘doesn’t add up.’ Read article here.