I did my own "climate change" research for the city of Albany New York. I picked Albany because it has had a relatively stable population over the last 140 years and has an uninterrupted extant climate record for the period in question
Population of Albany NY From census data:
1880 90,758 30.7%
1890 94,923 4.6%
1900 94,151 −0.8%
1910 101,253 7.5%
1920 113,344 11.9%
1930 127,412 12.4%
1940 130,577 2.5%
1950 134,995 3.4%
1960 129,726 −3.9%
1970 115,781 −10.7%
1980 101,727 −12.1%
1990 101,082 −0.6%
2000 95,658 −5.4%
2010 97,856 2.3%
Est. 2016 98,111 [4] 0.3%
Link to Albany NY frost records
http://www.weather.gov/media/aly/Climate/growingseasons.pdf
We are told that growing season is getting longer as the climate heats up (so far absolutely no evidence)
Anyway I plotted information from the two separate sources and produced this graph
View attachment 67227096
The number of frost free days is certainly just as an effective chronicle of climate change as the daily high + daily low divided by two. (uncertainty as to how they chronicled theses benchmarks in 1880, did they hire someone to watch the thermometers all day and night long?)
The only correlation I can determine from the data is that the "climate" has changed very little over the last 140 years and the only correlation appears to be that the more people who lived in Albany the more frosty it got???
And this is how the dismal science of "climate change" progresses:
"Post Hoc Ergo Propter Hoc" (whatever does that mean?)