Climate Scientist at @ClimateCentral | PhD | Views, thoughts, and opinions expressed are only my own ----- now posting on Bluesky -----
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ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Map of September surface air temperature anomalies for the globe and Europe
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line for days between April 1 and August 1. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Global and Europe map of January 2020 surface air temperatures from ERA5
ALT Running mean global surface air temperature anomaly time series from 1880 to 2019 compared to pre-industrial levels
ALT Line graph time series of 2020's daily Arctic sea ice extent compared to decadal averages since the 1980s
ALT Map of Arctic sea ice age in March 2021. It is comprised of mostly thin ice.
ALT Line graph time series of winter surface air temperature anomalies from 1880 to 2019
ALT Line graph time series of spring surface air temperature anomalies from 1880 to 2019
ALT Line graph time series of summer surface air temperature anomalies from 1880 to 2019
ALT Line graph time series of fall surface air temperature anomalies from 1880 to 2019
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability. Seasonal cycles are visible.
ALT Line graph time series of daily Arctic sea ice extent in the Laptev Sea for each year from 1979 to 2019. 2020 is shown in a red line and is the lowest on record for this time of year
ALT Line graph time series of daily Arctic sea ice extent in 2021 compared to each year from 1979 to 2020. This graph shows ice for only the Laptev Sea region. 2021 is the lowest on record for the current date in early June.
ALT Red line graph time series of monthly carbon dioxide abundance from January 1959 through May 2023. There is a seasonal cycle and long-term increasing trend. Current levels of CO2 are at 424 ppm. This is the Keeling Curve graph. A line for CO2 10 years ago is also annotated.
ALT Line graph time series of 2021's daily Arctic sea ice extent in the Laptev Sea for each year from 1979 to 2021. There is a sharp seasonal cycle. 2021 is currently the lowest on record for the date. 2020 is the second lowest on record for the date. The long-term trend shows that ice is decreasing in summer for the Laptev Sea basin.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomaly compared to 2016, which is the record for the larget magnitude sea ice anomaly. 2023 is a record for low for the current date. The range in sea ice anomalies between 1979 and 2022 is also shown. Anomalies are computed to a 1981-2010 baseline using passive microwave satellite data.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of Northern Hemisphere mean surface air temperature anomalies in boreal summer from 1900 to 2020. The temperature is increasing over time.
ALT Bar graph time series of global ocean heat content for the 0-2000 m depth from the late 1950s to 2020
ALT Green line graph time series of average sea surface temperature anomalies for Mays from 1900 through 2023. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline.
ALT Line graph time series of 2023's daily Antarctic sea ice extent compared to each year from 1979 to 2022. Lines are colored from purple in 1979 to white in 2021. 2022 is shown in yellow. 2023 is shown in red. There are no statistically significant long-term trends visible in this graph between February and April. Data are smoothed using a 5-day running mean from the Sea Ice Index v3.
ALT Global map showing surface air temperature anomalies in February 2022. Most areas are warmer than average, except for the tropical Pacific and parts of North America.
ALT Bar graph showing global ocean heat content change in the upper 2000 m from the late 1950s through 2022. There is a long-term warming in the time series.
ALT Line graph time series of 2023's daily Antarctic sea ice area compared to each year from 1979 to 2022. Lines are colored from purple in 1979 to white in 2022. 2023 is shown in red. There are no statistically significant long-term trends visible in this graph between January and March. Data are smoothed using a 5-day running mean from the Sea Ice Index v3.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of carbon dioxide levels over the last 800000 years. The previous maximum was around 350000 years ago at 300 ppm. Current levels are over 420 ppm.
ALT Line graph time series of 2020's daily Arctic sea ice extent in the Siberian Arctic compared to each year from 1979 to 2019. 2020 is a major outlier compared to the other years in October and November.
ALT Two line graphs showing Arctic surface temperature anomalies and global mean surface temperature anomalies from 1979 to 2020. The Arctic is warming faster than the global mean, but there is still interannual variability in both time series.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability. Seasonal cycles are visible.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2020's daily Arctic sea ice extent in the Siberian region compared to each year from 1979 to 2019
ALT Line graph time series of 2022's daily Antarctic sea ice extent compared to each year from 1979 to 2021. 2022 is currently the lowest ever observed, and 2017 is the 2nd smallest on record. There is a sharp seasonal cycle and no statistically significant long-term trends.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line for between the months of January and April. The year 2018 is also highlighted in yellow, which is the previous absolute record low. There is substantial interannual and daily variability.
ALT Global map showing surface air temperature anomalies in 2021 across the entire planet. Most all areas were warmer than average, except for parts of Antarctica and the equatorial Pacific. The largest warm anomalies were in the Arctic and the Northern Hemisphere midlatitudes. This data set is from NASA's GISTEMPv4 using anomalies with a 1951-1980 climate baseline.
ALT Line graph time series showing daily Arctic sea ice extent in the Chukchi Sea for each year from 1979 to 2019. 2019 is currently the lowest on record for early November and a large outlier compared to other years.
ALT White line graph time series of global mean surface temperature anomalies for each Northern Hemisphere from 1880 through 2023 during the months of September to November. There is a long-term increasing trend and large year-to-year variability. A 30-year lowess smoothing line is also shown with a red line. The global mean surface temperature anomaly in September-October-November 2023 was 1.85°C for the Northern Hemisphere. Anomalies are computed relative to a 1951-1980 climate baseline.
ALT Line graph time series of CO2 concentration from the late 1950s to 2020. The graph shows the Keeling Curve.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Two polar maps showing Arctic sea ice age between Septembers 1985 and 2020
ALT Heat map style graph showing the temperature ranking for each month from 1979 to October 2019. The ranks are indicated be squares of color shading.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2022's daily Antarctic sea ice extent compared to each year from 1979 to 2021. The previous record low year was 2017. It now appears that 2022 has fallen to the lowest on record. There are no statistically significant long-term trends in this time series.
ALT Bar graph showing the zonal mean surface air temperature anomaly for January 2021
ALT Line graph time series of 2022's daily Arctic sea ice extent compared to each year from 1979 to 2021. There are no statistically significant long-term trends as evident here.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability on this graph showing only between May and October months. A long-term decreasing trend is visible, which is a result of only the Arctic. 2023 is the lowest on record for this time of year. Data is from the NSIDC.
ALT Map of Arctic surface air temperature anomalies averaged over the next week from the FV3-GFS model
ALT Heat map-style graphic showing monthly global mean surface air temperature anomalies for every month from January 1880 through May 2023. A 'V' symbol is also shown for major volcanic eruptions. A 'm' symbol is shown for solar minima and a 'M' is shown for solar maxima. Every month is observing a long-term warming trend. There is also some interannual variability.
ALT Global map showing surface air temperature anomalies in September 2021. Most all areas are warmer than average. Data is from GISTEMPv4.
ALT Global map showing surface air temperature anomalies in September 2020. Most all areas are warmer than average. Data is from GISTEMPv4.
ALT Global map showing surface air temperature anomalies in September 2019. Most all areas are warmer than average. Data is from GISTEMPv4.
ALT Line graph time series of a 12-month running mean global surface air temperature anomaly since 1979
ALT Global map of surface air temperature anomalies in March 2022. Most areas were warmer than average.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line for days between April 1 and August 1. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line for days between April 1 and August 1. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of daily Arctic sea ice extent in 2019 compared to decadal average lines since the 1980s
ALT Global map of April 2020 surface air temperature anomalies next to a map of Europe
ALT Line graph time series showing global mean sea level from the early 1990s to 2022. The trend is increasing over time. A 60-day smoothed line is shown, along with a quadratic fit. The average rate is 3.4 +- 0.4 mm/yr with an acceleration rate of 0.084 +- 0.025 mm/yr^2.
ALT Line graph time series of monthly mean surface temperature anomalies for the Northern Hemisphere region only. Every month is shown from 1940 to 2023. There is a long-term warming trend in all months with an outlier for 2023.
ALT Line graph time series of global mean surface temperature anomalies for every September from 1880 through 2023. A red 30-year lowess smoothing line is also shown. Anomalies are computed relative to a 1951-1980 baseline. The global mean surface temperature anomaly in September 2023 was +1.47°C. There is large interannual variability and a recent long-term warming trend.
ALT Line graph time series of 2022's daily Antarctic sea-ice area compared to each year from 1979 to 2021. Lines are colored from purple in 1979 to white in 2021. 2022 is shown in red. There are no statistically significant long-term trends visible in this graph between November and January. Data are smoothed using a 5-day running mean from the Sea Ice Index v3.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability. Seasonal cycles are visible.
ALT Line graph time series of August mean Arctic sea ice extent from 1979 to 2020
ALT Polar stereographic map of Arctic 925 hPa temperature anomalies in August 2020
ALT Line graph time series of 925 hPa temperatures averaged for the Arctic for the mean May to August period from 1958 to 2020
ALT Line graph time series of daily Laptev sea ice extent for each year from 1979 to 2020
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomaly compared to 2016, which was previously the record for the largest magnitude sea ice anomaly. 2023 is a record for low for the current date and now a large outlier. The range in sea ice anomalies between 1979 and 2022 is also shown. Anomalies are computed to a 1981-2010 baseline using passive microwave satellite data.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of global mean surface temperature anomalies for every February from 1880 through 2023. A red 30-year lowess smoothing line is also shown. Anomalies are computed relative to a 1951-1980 baseline. The global mean surface temperature anomaly in February 2023 was +0.97°C. There is large interannual variability and a recent long-term warming trend.
ALT Line graph time series of 2021's daily Arctic sea ice volume compared to each year from 1979 to 2020
ALT Orange line graph time series of global mean surface temperature anomalies over land areas for each June to July from 1979-2022 using ERA5 reanalysis. A 20-year lowess smoothing line is also shown with white dashes. There is large interannual variability, but a long-term warming trend. Anomalies are computed relative to a 1981-2010 baseline and range from around -0.7°C to almost +0.9°C.
ALT IPCC figure 7.8 showing attributed global surface air temperature change from 1750 to 2019 and climate response constrained to assessed ranges for key climate metrics. The results shown are the medians from a 2237-member ensemble that encompasses uncertainty in forcing and climate response. Temperature contributions are expressed for carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), other well-mixed greenhouse gases (WMGHGs), ozone (O3), aerosols, and other anthropogenic forcings, as well as total anthropogenic, solar, volcanic, and total forcing. Shaded uncertainty bands show very likely ranges.
ALT Line graph time series showing global mean surface air temperature anomalies for each year from 1880 to 2021. There are also lines for the 12-month running mean, 132-month running mean, and a linear fit over 1970 to 2015. Super El Ninos are also shown for 1998 and 2015. While there is variability, the long-term warming is clear.
ALT Line graph time series of daily Antarctic sea ice extent for each year from 1979 through 2023. This year is currently the lowest on record for the date. A seasonal cycle is also visible on this graphic, but no long-term trend is visible.
ALT Line graph time series of global mean surface air temperature anomalies for several running means, such as 12-month and 132-month along with the linear trend on the chart
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line for between the months of January and April. The year 2018 is also highlighted in yellow, which is the previous absolute record low. There is substantial interannual and daily variability.
ALT Polar stereographic map showing 2-m air temperature anomalies in February 2022 across the Arctic. Most areas are warmer than average, except for parts of Greenland, northern Canada, and Alaska.
ALT Line graph time series of daily Central Arctic sea ice extent for each year from 1979 to 2020
ALT This graphic shows four line graph time series and each are monthly from January 1984 through November 2022. The first graph is a 12-month running mean of global mean surface temperature anomalies. Anomalies are computed relative to a 1991-2020 baseline using ERA5 data. The second graph is monthly carbon dioxide abundance. The CO2 graph is the Keeling Curve. Current levels are 418 ppm. The third graph is monthly global methane abundance. Current levels are 1909 ppb. The fourth graph is monthly global nitrous oxide abundance. Current levels are 336 ppb. The three greenhouse gases show seasonal cycles and long-term increasing trends using data from NOAA ESRL. The global mean surface temperature anomaly record also exhibits decadal variability and a long-term increasing trend. All graphs are rising and shown in four different colors, including white, yellow, orange, and pink.