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→Tailoring LID features to climate change
# '''Account for climate change:''' Historical data is no longer an accurate predictor of future extreme rainfall (CSA, 2025)<ref name = CSA2025>CSA, 2025. CSA 231:25 Developing and interpreting intensity-duration-frequency (IDF) information under a changing climate. https://www.csagroup.org/store/product/2431590/?srsltid=AfmBOopkRT3cosyCstZMacCmlthJxgfo6w6aFIXyuEExGmyBT8zw1vMs </ref>. Since IDF curves are based on historical data, climate change-scaled IDFs can be used to design LIDs that are resilient under future rainfall conditions (ECCC, 2025)<ref name = ECCC></ref>.
# '''Account for climate change:''' Historical data is no longer an accurate predictor of future extreme rainfall (CSA, 2025)<ref name = CSA2025>CSA, 2025. CSA 231:25 Developing and interpreting intensity-duration-frequency (IDF) information under a changing climate. https://www.csagroup.org/store/product/2431590/?srsltid=AfmBOopkRT3cosyCstZMacCmlthJxgfo6w6aFIXyuEExGmyBT8zw1vMs </ref>. Since IDF curves are based on historical data, climate change-scaled IDFs can be used to design LIDs that are resilient under future rainfall conditions (ECCC, 2025)<ref name = ECCC></ref>.
[[File:IDF curve climate change.png|650px|thumb|right|IDF curves may shift under future climate scenarios. In this example, the future 50-year storm is predicted to have a higher rate of rainfall than historical storms of the same return period. LID practices should be designed to accommodate this shift. Image credit: ECCC (2025) <ref name = ECCC>Environment and Climate Change Canada (ECCC). 2025. IDF Data and Climate Change. https://climatedata.ca/resource/idf-data-and-climate-change/</ref>]]
[[File:IDF curve climate change.png|650px|thumb|right|IDF curves may shift under future climate scenarios. In this example, the future 50-year storm is predicted to have a higher rate of rainfall than historical storms of the same return period. LID practices should be designed to accommodate this shift. Image credit: ECCC (2025) <ref name = ECCC>Environment and Climate Change Canada (ECCC). 2025. IDF Data and Climate Change. https://climatedata.ca/resource/idf-data-and-climate-change/</ref>]]<br>
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===Estimating future rainfall===
===Estimating future rainfall===
#Summarize results – Report both the median and 75th percentile of projected temperature changes from all climate change scenarios for use in future IDF curve calculations.
#Summarize results – Report both the median and 75th percentile of projected temperature changes from all climate change scenarios for use in future IDF curve calculations.
[[File:Screenshot 2025-08-29 140530.png|400px|thumb|right|Risk thresholds are a useful tool when prioritizing climate change impact management efforts. Low impact and low frequency events may not require management planning, while high impact and high frequency events require adaptation strategies (MECP, 2022)<ref name = MECP2022>Ministry of the Environment, Conservation and Parks (MECP). 2022. Low Impact Development Stormwater Management Guidance Manual. https://ero.ontario.ca/public/2022-01/Draft%20LID%20Stormwater%20Management%20Guidance%20Manual%202022.pdf</ref>]]<br>
[[File:Screenshot 2025-08-29 140530.png|400px|thumb|right|Risk thresholds are a useful tool when prioritizing climate change impact management efforts. Low impact and low frequency events may not require management planning, while high impact and high frequency events require adaptation strategies (MECP, 2022)<ref name = MECP2022>Ministry of the Environment, Conservation and Parks (MECP). 2022. Low Impact Development Stormwater Management Guidance Manual. https://ero.ontario.ca/public/2022-01/Draft%20LID%20Stormwater%20Management%20Guidance%20Manual%202022.pdf</ref>]]
====External Sources on Climate Change & IDF Curves====
====External Sources on Climate Change & IDF Curves====