David P:	I was wondering, when you say, "recently we've seen the effects of "climate change,"" since when? 
00:56:42	Sarah F:	Wrt earliest observed impact of climate change, there’s an interesting graph here. Looks like SLR (sea level rise) was observable well before 1950. https://geology.rutgers.edu/images/stories/faculty/miller_kenneth_g/Sealevelfactsheet7112014update.pdf	
Doug A:	How were the “CALCULATED” figures arrived at?
ANSWER: The slide showing 2022 Energy Costs, at 151 Borden Road,  has a column labled "Calculated".  during the 2022 calendar year, two gas furnaces (at 151 Borden Rd, Middletown)were mostly replaced by a single heat pump.  The gas furnaces were used only for low temperature backup.   The 2022 estimated gas USAGE was calculated as follows: 2022 estimated gas usage was calculated, for each month, based upon 2021 actual gas usage, and adjusted for the difference in degree-days in 2022 versus 2021.  The 2022 estimated gas COST was adjusted to reflect the current NJNatural Gas 2022 gas cost for each corresponding month in 2022.
David P:	Students interested in environmental jobs might be attracted to growth of renewable energy.
Darshana G:@David, Can you explain Fit-From-Inside window?
A: A third layer of glass or plastic (with a thin film low-e coating to block heat radiation out of the house) are custom-made for each window.  These are designed for easy insertion/removal (spring loaded) friction fit on the INSIDE frame.  These are available from companies, such as "InnerGlass". Video at https://www.youtube.com/watch?v=PDzUvl1Tolk  See prices at https://stormwindows.com
David P:	The function range of the air source hp?
ANSWER: every heat pump model has a specification curve which shows output heat for a given ambient temperature.  "Cold Climate Heat Pumps" have a spec at 5 degrees F which is required to be no less than ~70% its nominal heat output at ~47 degrees
David P:	The day you install it [rooftop solar], you merely finance it for the approximate cost evaluation vs productive capacity.
Betsy L:	RewiringAmerica.org and EnergyStar.gov have a lot of tutorial information on heat pumps, and other appliances - how they work and where to get them.