On March 15, 2024, the daily average carbon dioxide (CO₂) at Mauna Loa, Hawaii, was 427.93 parts per million (ppm), as illustrated by the image below, adapted from NOAA. This is the highest daily in situ average in the NOAA record at Mauna Loa, which is the more remarkable since the annual CO₂ maximum is … Read more
From melting ice caps to dying forests and thawing permafrost, the risk of ‘abrupt and irreversible changes’ is much higher than thought just a few years ago. Humans are playing Russian roulette with Earth’s climate by ignoring the growing risk of tipping points that, if passed, could jolt the climate system into “a new, less … Read more
Climate economics researchers have often underestimated – sometimes badly underestimated – the costs of damages resulting from climate change. Those underestimates occur particularly in scenarios where Earth’s temperature warms beyond the Paris climate target of 1.5 to 2 degrees C (2.7 to 3.6 degrees F). That’s the conclusion of a new report written by a … Read more
UN climate talks in Bonn ended in finger-pointing over their failure to move forward on a key programme to reduce planet-heating emissions, with the UN climate chief warning of “a very steep mountain to climb to achieve ambitious outcomes” at COP29 in Baku. In the closing session of the two-week talks on Thursday evening, many … Read more
Congratulations humanity! For the first time in recorded history we have breached 2C above preindustrial levels! (Glacecakes Tumblr)