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The #ParisAgreement's Article 2 sets a long-term goal to limit warming well below 2C while pursuing to limit it to 1.5C. This reflects a firm commitment to hold warming permanently well below 2C, and aim to keep it as close as possible and preferably below 1.5C. (2)

Guest post: How to minimise the risks from overshooting the 1.5C limit | Carl-Friedrich Schleussner G Joeri Rogelj Read here: buff.ly/3Uqgyn1

🌡️ "Overshoot comes with irreversible consequences for people and ecosystems, such as species extinction, and the world we return to will be different from the one we failed to safeguard," say IIASA's Carl-Friedrich Schleussner, Gurav Ganti, and Joeri Rogelj in a new The Conversation

Countries should not include forests, soils and oceans in their net zero targets if they want to reverse global warming, a new study co-authored by Professor Joeri Rogelj Imperial College London warns 🧵 Read more: ow.ly/20LV50U9c6z #COP29

Co-author of the study Prof. Joeri Rogelj explains why distinguishing between nature-based CO2 removal (forests and oceans) and active removal (carbon capture tech.) is so important to reach #NetZero👇

With #COP29Baku in full swing it might be good to repost the below. If we can't keep warming to 1.5C, we can simply overshoot? Think again 👇

🧵 A who's who of the atmospheric physicists and carbon cycle experts who lead the way, c.2009 and forward, in changing¹ the nature of our climate mitigation challenge to one of net-zero, carbon budgets and cumulative emissions has a new paper today in Nature.

Interested in how carbon budget estimates changed over the past decade? Here's all you need in a short thread 👇

Explainer: Why some countries are aiming for ‘net-negative’ emissions | Daisy Dunne w/comment from Joeri Rogelj @dmreinercamb #CBarchive Read here ➡️ buff.ly/4fmxsdO

2024 saw global temperatures hit 1.6°C above preindustrial levels, surpassing the 1.5°C target Prof Joeri Rogelj & Dr Dr Friederike Otto warn every fraction of a degree brings more harm. Urgent action to cut emissions and transition from fossil fuels is critical theguardian.com/environment/20…

With all the news about the latest data showing that temperatures in 2024 were 1.6°C warmer than pre-industrial levels, many have asked what this means for the 1.5°C of the UN Paris Agreement. It might be useful to post this short 🧵 that distinguishes signal from noise 👇

By February countries are expected to submit "fair and ambitious" pledges (NDCs) for 2035 to the Paris Agreement. A new paper, co-authored by Joeri Rogelj, provides a blueprint to provide greater transparency around countries' climate pledges. iopscience.iop.org/article/10.108…

This study allocates a global warming budget for all greenhouse gases (not just CO2) and shows most developed and advanced economies have already exceeded their fair share for equity in international climate policy. @MingyuLi1013; @joerirogelj nature.com/articles/s4146…

In a new study in Nature Communications, we look at how we can allocate the global warming space instead of carbon budgets and translate it to warming-equivalent emissions budgets. If you want to read more or engage on this, please connect via BlueSky: bsky.app/profile/joerir…

A new paper from Drew Shindell & Joeri Rogelj shows that using carbon dioxide removal for anything other than "hard to abate" emissions & overshoot would make achieving net-zero emissions impossible. There can be no "decarbonizing oil" with direct air capture, in other words.