Changes

==Observed to date==

===Observed to date===

* IDF: Changing rainfall intensities affect stormwater runoff timing, peak rates and volumes; Methods have been relying on static IDF curves. Increased frequency of 12% and increase intensity of 16% of extreme precipitation events for 1958 - 2007 for the US Northeastern region <ref>Larson, L, Nicholas Rajkovich, and Clair Leighton. 2011. “Green Building and Climate Resilience: Understanding Impacts and Preparing for Changing Conditions.” University of Michigan, 260. http://scholar.google.com/scholar?hl=en&btnG=Search&q=intitle:GREEN+BUILDING+AND+CLIMATE+RESILIENCE+Understanding+impacts+and+preparing+for+changing+conditions#0.</ref>

* IDF: Changing rainfall intensities affect stormwater runoff timing, peak rates and volumes; Methods have been relying on static IDF curves. Increased frequency of 12% and increase intensity of 16% of extreme precipitation events for 1958 - 2007 for the US Northeastern region <ref>Larson, L, Nicholas Rajkovich, and Clair Leighton. 2011. “Green Building and Climate Resilience: Understanding Impacts and Preparing for Changing Conditions.” University of Michigan, 260. http://scholar.google.com/scholar?hl=en&btnG=Search&q=intitle:GREEN+BUILDING+AND+CLIMATE+RESILIENCE+Understanding+impacts+and+preparing+for+changing+conditions#0.</ref>

* “Percent changes in the amount of precipitation falling in very heavy events (the heaviest 1 %) from 1958 to 2012 for each region. There is a clear national trend toward a greater amount of precipitation being concentrated in very heavy events, particularly in the Northeast US (71 %) and Midwest US (37 %).” <ref>Melillo, Jerry M, T C Richmond, Gary W Yohe, and US National Climate Assessment. 2014. Climate Change Impacts in the United States: The Third National Climate Assessment. US Global Change Research Program. Vol. 841. https://doi.org/10.7930/j0z31WJ2.</ref>

* “Percent changes in the amount of precipitation falling in very heavy events (the heaviest 1 %) from 1958 to 2012 for each region. There is a clear national trend toward a greater amount of precipitation being concentrated in very heavy events, particularly in the Northeast US (71 %) and Midwest US (37 %).” <ref>Melillo, Jerry M, T C Richmond, Gary W Yohe, and US National Climate Assessment. 2014. Climate Change Impacts in the United States: The Third National Climate Assessment. US Global Change Research Program. Vol. 841. https://doi.org/10.7930/j0z31WJ2.</ref>

* “Increases in the frequency and magnitude of extreme rainfall events have been documented in New York State. These changes are among the largest seen within the United States (DeGaetano 2009). Climate change projections suggest that these increases will continue <ref>Tryhorn, Lee. 2010. “Improving Policy for Stormwater Management: Implications for Climate Change Adaptation.” Weather, Climate, and Society 2 (2):113–26. https://doi.org/10.1175/2009WCAS1015.1.</ref>

* “Increases in the frequency and magnitude of extreme rainfall events have been documented in New York State. These changes are among the largest seen within the United States (DeGaetano 2009). Climate change projections suggest that these increases will continue <ref>Tryhorn, Lee. 2010. “Improving Policy for Stormwater Management: Implications for Climate Change Adaptation.” Weather, Climate, and Society 2 (2):113–26. https://doi.org/10.1175/2009WCAS1015.1.</ref>

===Projected===

==Projected==

*Increase in frequency and intensity of extreme precipitation events between now and 2100 <ref>Larson, L, Nicholas Rajkovich, and Clair Leighton. 2011. “Green Building and Climate Resilience: Understanding Impacts and Preparing for Changing Conditions.” University of Michigan, 260. </ref>

*Increase in frequency and intensity of extreme precipitation events between now and 2100 <ref>Larson, L, Nicholas Rajkovich, and Clair Leighton. 2011. “Green Building and Climate Resilience: Understanding Impacts and Preparing for Changing Conditions.” University of Michigan, 260. </ref>

* “The analysis indicates that there is likely to be an obvious warming trend with time over the entire province. The increase in average temperature is likely to be varying within:

* “The analysis indicates that there is likely to be an obvious warming trend with time over the entire province. The increase in average temperature is likely to be varying within: