Wednesday, August 30, 2023

Climate Deaths

A study published in Energies estimates the toll from future warming.
Several studies are consistent with the "1000-ton rule," according to which a future person is killed every time 1000 tons of fossil carbon are burned (order-of-magnitude estimate). If warming reaches or exceeds 2 °C this century, mainly richer humans will be responsible for killing roughly 1 billion mainly poorer humans through anthropogenic global warming, which is comparable with involuntary or negligent manslaughter.

Tuesday, August 8, 2023

Hottest Month (Yes, So Far)

The Copernicus Climate Change Service announced that last month is the warmest on record by a wide margin.
July’s global average temperature of 16.95 degrees Celsius (62.51 degrees Fahrenheit) was a third of a degree Celsius (six tenths of a degree Fahrenheit) higher than the previous record set in 2019.
The month was 1.5 degrees Celsius (2.7 degrees Fahrenheit) warmer than pre-industrial times [and] 0.7 degrees Celsius (1.3 degrees Fahrenheit) hotter than the average July from 1991 to 2020.
Days in July have been hotter than previously recorded from July 2 on.

Update (September 6):  The World Meteorological Organization announced that this summer was the warmest for the Northern Hemisphere. 

Last month was not only the hottest August scientists ever recorded by far with modern equipment, it was also the second hottest month measured, behind only July 2023.

Update (October 9):  And now the record for the largest monthly anomaly.

Last month's average temperature was 0.93 degrees Celsius (1.7 degrees Fahrenheit) above the 1991-2020 average for September. That's the warmest margin above average for a month in 83 years of records kept by the European Space Agency's Copernicus Climate Change Service.
Copernicus calculated that the average temperature for September was 16.38 degrees Celsius (61.48 degrees Fahrenheit), which broke the old record set in September 2020 by a whopping half-degree Celsius (0.9 degrees Fahrenheit).

Update (November 10):  Climate Central reports that the twelve months from November 2022 to October 2023 were the warmest in recorded history. 

[A]verage global temperatures during that period were roughly 1.32º Celsius (2.4º Fahrenheit) above preindustrial averages. As a result, roughly nine out of ten humans alive experienced at least 10 days over the past 12 months during which high temperatures would have been unlikely if not for climate change.