How hot will it get?

How hot will it get?

Currently, the temperature in the Northern Hemisphere is higher than it was last year at this time of year, as illustrated by the image below, created with University of Maine content. The image shows that a temperature of 21.1°C was reached in the Northern Hemisphere on June 17, 2024. The question is: Will temperatures over the next … Read more

Arctic Sea Ice Alert

Arctic Sea Ice Alert

[ click on images to enlarge ] Temperatures remain high, as illustrated by the above image, adapted from Copernicus.  Meanwhile, El Niño is no longer prevalent. Instead, La Niña conditions are expected to be dominant soon, as illustrated by the NOAA ENSO update on the right.  There are fears that self-amplifying feedbacks have taken over … Read more

Have feedbacks taken over?

Have feedbacks taken over?

For about one year now, global temperature anomalies have been extremely high, as illustrated by the image below, created with a screenshot from Copernicus, showing an anomaly from 1991-2020 of 0.86°C on June 1, 2024. What could be behind these persistently high temperatures? Many causes such as El Niño and sunspots have been discussed in earlier … Read more

Very high temperatures in Tropics

Very high temperatures in Tropics

Temperatures in the Tropics (23.5°S-23.5°N, 0-360°E) have been very high in 2024 (see black line, image below), much higher than they were at this time of year in 2023 (orange line).  The above image shows that on May 24, 2024, the temperature was 26.7°C (or 80.06°F), an anomaly of 1°C (or 1.8°F) compared to 1979-2000.  The image … Read more

Temperatures in the Tropics

Temperatures in the Tropics

The image below shows that temperatures in the Tropics (23.5°S-23.5°N, 0-360°E) were very high during the second half of April 2024, and these very high temperatures were sustained during the first part of May 2024. The temperature was 26.9°C (or 80.42°F) on May 11, 2024, an anomaly of 1.1°C (or 1.98°F) from 1979-2000.  The image below shows … Read more

Temperature rise may soon accelerate even more

Temperature rise may soon accelerate even more

The April 2024 temperature was 1.32°C higher than 1951-1980, as illustrated by the above image, created with NASA content. Local anomalies are as high as 6.2°C. The April 2024 temperature was 1.62°C higher than 1900-1930, as illustrated by the above image, created with NASA content. The red line highlights acceleration of the temperature rise (Lowess Smoothing).  The … Read more

Tracking toward mass extinction

Tracking toward mass extinction

 by Andrew Glikson Where “Two plus two equals five if the party says so” (George Orwell)and when drilling methane wells reduces global warming Having turned a blind eye to climate science, ignoring the evidence that extreme atmospheric carbon dioxide (CO₂), methane (CH₄) rise and ocean acidification have led to mass extinctions of species through time, humanity … Read more

Is CMIP6 SSP585 the worst-case scenario?

Is CMIP6 SSP585 the worst-case scenario?

The image below, adapted from Climate Reanalyzer, shows the temperature in the year 2100, in a CMIP6 SSP585 scenario. The image shows how much the temperature will have risen in 2100, at 2 meters above the surface and compared to the period 1979-2000.  The image below shows a progressive temperature rise reaching 4.589°C in 2100 … Read more

Temperature rise in the Tropics (update 5)

Temperature rise in the Tropics (update 5)

The temperature in the Tropics (23.5°S-23.5°N, 0-360°E) reached a new record high on April 24, 2024 of 27°C (or 80.6°F).  The image below shows the monthly temperature anomaly over the past few years through March 2024, when the anomaly reached a record high of 1.448°C (or 2.606°F).   Note that the anomaly in the top image … Read more

Arctic sea ice under threat

Arctic sea ice under threat

The image below indicates that Arctic sea ice volume has meanwhile passed its annual maximum. Over the coming months, volume can be expected to decrease rapidly. The image also highlights that, over the past few months, Arctic sea ice volume has been the lowest on record for the time of year. The image below illustrates … Read more