New UN report projects warming at 3.1C

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The United Nations Environment Programme (UNEP) recently released its Emissions Gap Report 2023, painting a sobering picture of our global climate trajectory. Titled “Broken Record – Temperatures hit new highs, yet world fails to cut emissions (again),” the report underscores the urgent need for enhanced climate action to avoid catastrophic warming

Key Findings

The report reveals that current climate pledges under the Paris Agreement put the world on track for a temperature rise of 2.5-2.9°C above pre-industrial levels this century. In fact it may even go above:

The new report says: “A continuation of current policies is estimated to limit global warming to a maximum of 3.1C (range 1.9-3.8C) over the course of the century.”

This figure coincides with that of the most recent IPCC report from 2021 which indicated a rise of up to 3.6C of warming this century under a higher level of emissions.

The UN says that this would be “catastrophic” for the planet and will lead to extensive rises in extreme weather events including heatwaves and floods.

This projection is slightly higher than in the 2022 report, reflecting an expanded set of climate models used in the analysis.
Emissions Trajectory: Global greenhouse gas emissions reached a new record high of 57.4 Gigatonnes of CO2 equivalent (GtCO2e) in 2022, marking a 1.2% increase from 2021

This upward trend starkly contrasts with the dramatic emissions reductions needed to limit warming to 1.5°C or even 2°C.

The Emissions Gap: The “emissions gap” – the difference between projected emissions and the levels needed to meet climate goals – remains alarmingly wide. To limit warming to 2°C, emissions in 2030 need to be 28% lower than current projections. For the more ambitious 1.5°C target, a 42% reduction is required

Implications and Challenges

Urgency for ActionThe report emphasizes that maintaining the possibility of achieving the Paris Agreement goals hinges on significantly strengthening mitigation efforts this decade. Without immediate and substantial emissions cuts, it will become impossible to establish least-cost pathways to limit global warming to 1.5°C with no or low overshoot

G20 Performance: The report highlights the crucial role of G20 countries, which account for about 77% of global emissions
Only six G20 members are currently on track to achieve their 2030 climate targets based on existing policies, underscoring the need for more ambitious action from the world’s largest economies

Path Forward

Strengthening NDCs: Countries must strengthen their Nationally Determined Contributions (NDCs) and accelerate implementation. The report suggests that if all new and updated unconditional NDCs were fully implemented, they could reduce annual greenhouse gas emissions by about 5.0 GtCO2e by 2030, approximately 9% of 2022 emissions

Systemic TransformationThe report calls for urgent system-wide transformations across sectors to deliver the enormous cuts needed in greenhouse gas emissions. This includes accelerating the transition to renewable energy, improving energy efficiency, and implementing sustainable land-use practices.

Conclusion

The Emissions Gap Report 2023 serves as a stark reminder that current efforts fall far short of what’s needed to avert a climate catastrophe. As UNEP Executive Director Inger Andersen stated, “We must instead lift the needle out of the same old groove of insufficient ambition and not enough action, and start setting other records: on cutting emissions, on green and just transitions and on climate finance”

The upcoming COP28 climate summit in Dubai presents a critical opportunity for nations to step up their climate ambitions and take concrete steps towards closing the emissions gap. The message is clear: the time for incremental changes has passed. Only transformative action can put us on a path to a sustainable and climate-resilient future.

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I am a Chartered Environmentalist from the Royal Society for the Environment, UK and co-owner of DoLocal Digital Marketing Agency Ltd, with a Master of Environmental Management from Yale University, an MBA in Finance, and a Bachelor of Science in Physics and Mathematics. I am passionate about science, history and environment and love to create content on these topics.