Globally averaged CO2 mole fraction (a) and its growth rate (b) from 1984 to 2018. Increases in successive annual means are shown as shaded columns in (b). The red line in (a) is the monthly mean with the seasonal variation removed; the blue dots and line depict the monthly averages. Observations from 129 stations have been used for this analysis. Graphic: WMO

Greenhouse gas concentrations in atmosphere reached yet another high in 2018

GENEVA, 25 November 2019 (WMO) – Levels of heat-trapping greenhouse gases in the atmosphere have reached another new record high, according to the World Meteorological Organization. This continuing long-term trend means that future generations will be confronted with increasingly severe impacts of climate change, including rising temperatures, more extreme weather, water stress, sea level rise […]

U.S. greenhouse gas emissions under current federal and state policy, net emissions (million metric tons of CO2e). Graphic: Rhodium Group

Taking Stock 2019: U.S. on track to miss Paris Agreement climate goal by wide margin

By Hannah Pitt, Kate Larsen, Hannah Kolus, Shashank Mohan, John Larsen, Whitney Herndon, and Trevor Houser 8 July 2019 (Rhodium Group) – For the past five years, Rhodium has provided an independent annual assessment of US greenhouse gas (GHG) emissions and progress towards achieving the country’s climate goals. Given the current state and federal policy […]

Global average abundance of atmospheric carbon dioxide in 2018. Graphic: NOAA

Graph of the Day: NOAA Annual Greenhouse Gas Index, 1700-2018

30 May 2019 (Desdemona Despair) – Last week, the NOAA Earth System Research Laboratory posted its annual update to the NOAA Annual Greenhouse Gas Index (AGGI), which measures the climate-warming influence of long-lived trace gases, including carbon dioxide and methane. To nobody’s surprise, the AGGI continued its inexorable rise in 2018 because, for another year, […]

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