A table of all-time state temperature records can be found here:
https://en.wikipedia.org/wiki/U.S._state_and_territory_tempe…
Here is the distribution by decade for record high temperatures:
Decade
<1900 x
1900
1910 xxxxxx
1920 xx
1930 xxxxxxxxxxxxxxxxxxxxxxx
1940
1950 xxxx
1960 x
1970 xx
1980 xxxx
1990 xxxxx
2000 x
2010 xx
Only 14 records, 28%, have occurred in the last half century.
DB2
Only 14 records, 28%, have occurred in the last half century.
Versus 23 records, 46%, in the 1930s.
You must understand, though, that this MUST be either (a) just weather, a temporary thing, not important; or (b) proof of human-industry-caused global warming climate change. No third possibility is allowed.
Only 14 records, 28%, have occurred in the last half century.
The data given are only for the United States. The entire surface of the globe is much larger.
Still, it is curious that many of the record high temperatures from the dust bowl years of the 1930s have not yet been broken. This is particularly interesting when we consider that 75% of all human-caused CO2 has been emitted since 1970!
https://ourworldindata.org/co2-emissions
In the link above, scroll down to the Cumulative CO2 Emissions section, and on the map, click on the Chart tab. Seventy-five percent of the CO2 emitted from fossil fuel burning and and cement manufacture has occurred since 1970. Half of the CO2 has been emitted since 1992.
If half of the CO2 has occurred since 1992, has half of the warming happened during that time? There are many variables, with CO2 being only one of the things affecting the atmospheric temperature. But I think it is a legitimate question.
Well, if we look at data for the past half-million years, it looks like maybe elevated temperatures cause elevated CO2 - not the other way around - with a lag of between 30 and 200 years.
However, if we look at data for the past half-Billion years, that relationship falls apart and there’s no correlation at all.
A table of all-time state temperature records can be found here:
===================================================
Interesting but not relevant to global warming and climate change!!!
Here is what is happening to the temperatures on earth since 1880:
Earth’s temperature has risen by 0.14° F (0.08° C) per decade since 1880, and the rate of warming over the past 40 years is more than twice that: 0.32° F (0.18° C) per decade since 1981.
2020 was the second-warmest year on record based on NOAA’s temperature data, and land areas were record warm.
Averaged across land and ocean, the 2020 surface temperature was 1.76° F (0.98° Celsius) warmer than the twentieth-century average of 57.0°F (13.9°C) and 2.14°F (1.19°C) warmer than the pre-industrial period (1880-1900).
Despite a late-year La Niña event that cooled a wide swath of the tropical Pacific Ocean, 2020 came just 0.04° Fahrenheit (0.02°Celsius) shy of tying 2016 for warmest year on record.
The 10 warmest years on record have occurred since 2005.
From 1900 to 1980 a new temperature record was set on average every 13.5 years; from 1981–2019, a new record was set every 3 years.
https://www.climate.gov/news-features/understanding-climate/…
Jaak
A table of all-time state temperature records can be found here…
And for those who live in Petaluma, California the record high temperature was set in 1972, half a century ago.
www.plantmaps.com/california-record-high-and-low-temperature…
DB2
And, of course, the point in climate change is average temperature, not one day peaks.
If half of the CO2 has occurred since 1992, has half of the warming happened during that time? There are many variables, with CO2 being only one of the things affecting the atmospheric temperature. But I think it is a legitimate question.
Yes, about 1/2 the warming has occurred since 1992. We’ve warmed about .6 deg C since then and 1992 was about .6C warmer than it was in the last decades of the 1800s, which were early enough in the industrial revolution to be ballpark the same as preindustrial in terms of CO2 in the air.
https://data.giss.nasa.gov/gistemp/graphs/graph_data/Global_…