Nous sommes extrêmement reconnaissants aux modérateurs Paul Watkinson (@pwatkinson.bsky.social) et Ramona Bloj, ainsi qu’à Luis Vassy et Ariane Joab-Cornu de Sciences Po pour l’organisation de cette séquence inédite.

Preliminary data suggests that the global average increase in atmospheric CO2 concentration in 2024 will be a record. Not just a little record, but 25% higher than the previous record. (This is the global average, as opposed to Moana Loa) gml.noaa.gov/ccgg/trends/... 1/

I have been saying for a long time that we need to reduce the space given to negotiation and find ways to make the UNFCCC process more relevant to supporting implementation and overcoming barriers to action. I have put some ideas in this article: www.linkedin.com/pulse/from-n...

These are troubling times for anyone concerned about the climate – and that ought to be just about everyone on the planet. Global temperatures have hit record highs, extreme events are multiplying.

So, a question on whether climate change might play a role in record high temperatures is not "on-topic" ...

Parabéns, good luck to André Corrêa do Lago ! A great choice to lead COP30, a huge challenge ahead.

I have a new paper in Dialogues on Climate Change exploring climate outcomes under current policies. I find that we are likely headed toward 2.7C by 2100 (with uncertainties from 1.9C to 3.7C), and that high end emissions scenarios have become much less likely. journals.sagepub.com...

Trump’s executive order to take the US out of the Paris Agreement – again – was no surprise but remains bad news since it would have been better for the US to remain an active participant in the global fight against climate change.

There are moments when it might be tempting to give in to despair. 2024 was the warmest year on record, the first time we have seen the global average temperature go more than 1.5°C above pre-industrial levels. climate.copernicus.eu/global-clima...

I'm a day late, but 15 years ago yesterday was the final day of COP15 in Copenhagen. This photo captures exactly how I felt that day. Many things went wrong at that conference, but I drew three main lessons from that failure

It is now virtually certain that 2024 will be the warmest year on record and that the global average temperature will exceed 1.5ºC above pre-industrial levels. That underlines the need to massively strengthen efforts to keep warming as close as possible to 1.5°C and well under 2°C

Cet article du Monde évoque quelques pistes possibles pour réformer les COPs climat, un sujet que nous devons aborder, surtout après la COP29 de Bakou www.lemonde.fr/planete/arti...

My reaction to COP29? A mix of relief and frustration. Relief that the process did not collapse, that important results were finalised, including on finance and carbon markets. Multilateralism is shaky but continues to function.

Yesterday’s drafts from the #COP29 presidency satisfied no-one but that was to be expected – work was unfinished, everyone recalled their priorities and objectives and stressed what they could not accept

It is good to see the set of draft negotiating texts produced overnight in Baku that provide a basis for the last rounds of negotiation to reach agreement at #COP29. It is also daunting given how many issues remain to be resolved.

It seems that a passing comment I made at the end of my personal reflections on the state of play at COP29 at the end of the first week has been taken out of context and turned into something it was not intended to be bsky.app/profile/pwat...

Changes in global temperature (1850-2023) Find similar graphics for your country or city: www.ShowYourStripes.info #ShowYourStripes

The results of the first week of COP29 are decidedly messy. Some thoughts after watching this from afar over the last few days.

A Bakou la COP29 discute d’un nouvel objectif financier pour le climat, dont une partie sera forcément toujours mobilisée par les pays développés, dont la France, dans la continuité des 100 milliards USD A Paris le projet de loi de finances pour 2025 coupe dans l’APD…

2024 #climateactiontracker Global Update: the combined global effect of government climate action has flat-lined over the last 3 years: a critical disconnect between the reality of the climate emergency and the lack of urgency on policies to deal with it. 🧵 bit.ly/CAT_2024_glo...

Time for the @bsky.app community to see one of my favorite visualizations of climate change... "Shifting Distribution of Land Temperature Anomalies" by svs.gsfc.nasa.gov/5211/ ⚒️🧪

Despite hopes that we may be close to peak global CO2 emissions, we are still not there, as shown by the latest Global Carbon Budget – many thanks to all who contribute to putting together this vital, but sobering analysis.

A few days before #COP29 opened I shared in other places some notes on how the #UNFCCC process works. In case it may be of interest, I shall share them here too