I went to a water conference at UMass yesterday. It had great discussions and overviews of all kinds of environmental research going on I wanted to share with you.
Regarding global climate change, here is the consensus of research and scientists for changes we will be seeing in New England:
1. warming trend between 3.5-4.0 degrees F
2. less snow but more rain
3. increase in the volume and frequency of precipitation events
4. 20-30% increase in winter precipitation
5. earlier snowmelts
6. increase frequency & volume of smaller flooding events
These things will put more pressure on existing and future stormwater systems (are they designed to handle this increase?) and it is anticipated that they will also cause the depths and widths of stream channels to deepen and widen, thereby dramatically altering riverine flooding patterns and river and riparian habitats. We should keep this in mind when reviewing stormwater and riverfront area projects.
USGS data indicates that the CT River Valley will experience a 15-20% increase in volume and frequency of 24-hour, 100-yr storm precipitation events and that Boston is expected to experience over 35% increase in these precip events. Areas between CT River Valley and Boston somewhere in between 20-35%.
One discussion ended with this video of a culvert failure in Freeport Maine:
Or just search utube for Freeport culvert failure.