Negotiated over 60 years ago and ratified in 1964, the Columbia River Treaty (CRT or "the Treaty"), is often looked to as the standard for cross-jurisdictional water management. A crucial aspect of the Treaty is the governance of water flows to minimize downstream flooding. Climate change directly impacts the hydrology of the Columbia River, which has implications for activities such as power generation and flood control management. The Treaty needs to be modernized to incorporate the effects of climate change. Current discussions between Canada and the United States over the Treaty provide an opportunity to incorporate potential impacts of climate change on measures Canada could be asked to take to reduce downstream flooding. This study looks at the effects of climate change on flood risk within the Columbia River Basin and analyzes the costs and benefits associated with the operation of a provision in the current treaty known as ‘Called Upon’ flood control. This study then presents the information that may be helpful for the Canadian Entity to frame negotiation options given the potential impacts of climate change.
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机译：经过60多年的谈判并于1964年批准的《哥伦比亚河条约》（CRT或“该条约”）通常被视为跨辖区水管理的标准。该条约的一个关键方面是治理水流，以最大程度地减少下游洪水。气候变化直接影响哥伦比亚河的水文学，这对诸如发电和防洪管理等活动具有影响。该条约需要现代化，以纳入气候变化的影响。加拿大和美国之间目前就该条约进行的讨论提供了一个机会，可以将气候变化的潜在影响纳入加拿大可能被要求采取的减少下游洪水的措施中。这项研究着眼于气候变化对哥伦比亚河流域内洪水风险的影响，并分析了与现行条约中称为“ Called On”防洪条约的规定的实施相关的成本和收益。然后，鉴于气候变化的潜在影响，本研究提出了可能有助于加拿大实体制定谈判方案的信息。
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