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The World daily 2-meter Air Temperature (90-90°N, 0-360°E) was 16.77°C on June 9, 2023, an anomaly of 0.9°C for that day. The highest temperature on record is 16.92°C, and it was reached on August 14, 2016, and the anomaly for that day was only 0.75°C.  The record high of 16.92° actually was a tie between August 13, 2016, August 14, 2016, and July 24, 2022. That latter date is important, since the record high temperature was reached even while there was a strong La Niña, suppressing the temperature. This time, we're in an El Niño , so we can expect even higher temperatures over the next few weeks. The highest anomaly on record was reached on February 28, 2016, when there was a strong El Niño and the anomaly was 1.15°C. Note that these anomalies are compared to the mean temperature for that day in NOAA's NCEP CFSv2 .  The above image, from an earlier post , uses monthly NASA Land+Ocean temperature anomalies versus 1886-1915 that are further adjusted by 0.99°C to reflect ocea...

Ocean heat is at record levels. As a result, global sea ice extent was only 16.23 million km² on February 9, 2022, the third lowest extent on record. What makes this even more worrying is that we're currently in the depth of a persistent La Niña. Antarctic sea ice at lowest  extent on record since start satellite measurements Ocean heat is a huge threat for Antarctica at the moment. The image below shows that Antarctic sea ice extent was only 2.091 million km² on February 16, 2022, the lowest on record since the start of satellite measurements. Ocean heat is reducing the sea ice around Antarctica and is getting underneath floating sea ice.  The Thwaites Glacier, which is on a retrograde slope, is especially vulnerable to collapse.  The Thwaites Glacier contains enough ice to raise global sea levels  by 65 cm  (25.59 inches)   if it were to completely collapse. The animation on the right, created with images from  Climate Reanalyzer , shows th...