The relevant timeframe for evaluating climate change projections for your community will depend on several factors, including what climate hazards present the highest risk in your community and the availability and certainty of the data that supports projections of those risks; the lifespans of built infrastructure that may be vulnerable to climate change impacts; and jurisdictional planning cycles that inform how long policies and planning objectives may be in effect. For example, if you are building climate adaptation into a comprehensive planning process to address urban flooding that impacts road access and infrastructure, relevant timescales for evaluating climate projections could include over the period during which the comprehensive plan is implemented (e.g., within 10 years), as well as longer-term projections that can inform capital expenditures for road infrastructure that may have a much longer lifespan than a single planning cycle (e.g., several decades).