The American Meteorological Society issued its annual report recently on the state of the climate for 2019. The report notes increases in Green House Gases (GHGs) as well as extreme warm days during 2019. A partial summary of the findings in the report includes the following:
“All major greenhouse gases released into Earth’s atmosphere reached new record high concentrations in 2019. The annual global average carbon dioxide concentration at Earth’s surface was 409.8 ± 0.1 ppm, an increase of 2.5 ± 0.1 ppm over 2018, and the highest in the modern instrumental record and in ice core records dating back 800,000 years. Greenhouse gases, along with several halogenated gases, have contributed to a 45% increase in net forcing compared to 1990.