As the world grapples with the escalating impacts of climate change, a recent United Nations report has offered a glimmer of hope amid growing concerns over global greenhouse gas emissions. According to the UN Framework Convention on Climate Change, if nations fulfill their current climate pledges, global emissions could decrease by approximately 10 percent by 2035 compared to 2019 levels. This projection marks the first time the UN has forecasted an actual decline in emissions, signaling that international efforts are beginning to bend the curve downward after decades of relentless increases.
The announcement comes from Simon Stiell, the UN climate chief, who highlighted this development during the release of the 2025 NDC Synthesis Report. Nationally Determined Contributions, or NDCs, are the core commitments under the Paris Agreement, where countries outline their plans to reduce emissions and adapt to climate change. This year’s synthesis analyzes 64 new or updated NDCs submitted by September 2025, covering about 30 percent of global emissions from 2019. For these submitting parties, the pledges suggest emissions could drop by 17 percent below 2019 levels by 2035, or even 19 to 24 percent if conditional elements—those dependent on international support like finance and technology—are fully met.
However, when extrapolated to the global scale by incorporating existing pledges from all countries, the overall reduction shrinks to that modest 10 percent. This global figure is based on commitments from nations representing around 80 percent of worldwide emissions, including major players like China, the European Union, and the United States. It’s a step forward from previous projections, which often showed emissions continuing to rise, but experts warn it’s perilously insufficient to avert the worst consequences of warming.
To understand the shortfall, consider the scientific benchmarks set by the Intergovernmental Panel on Climate Change. Limiting global temperature rise to 1.5 degrees Celsius above pre-industrial levels—the ambitious goal of the Paris Agreement—requires slashing emissions by about 60 percent from 2019 levels by 2035. Even for the less stringent 2-degree target, a 35 percent cut is needed. The current 10 percent projection leaves a yawning “emissions gap” that could lead to more frequent extreme weather events, rising sea levels, biodiversity loss, and threats to food security. As Melanie Robinson from the World Resources Institute put it, the report exposes a “frightening gap between what governments have promised and what is needed to protect people and planet.”
Delving deeper into the pledges, the new NDCs show some progress in ambition. Eighty-eight percent include unconditional commitments that countries plan to achieve independently, while 67 percent have additional conditional targets reliant on external aid. For instance, many developing nations emphasize the need for financial support, technology transfer, and capacity building to ramp up their efforts. The report notes that these plans increasingly adopt a “whole-of-economy” approach, targeting sectors like energy, transportation, agriculture, and forestry more comprehensively than before.
Country-specific examples illustrate both advances and challenges. Brazil, host of the upcoming COP30 summit, has submitted a pledge aiming for significant reductions, aligning with its role as a biodiversity hotspot. The European Union is targeting a 66 to 72 percent cut from 1990 levels by 2035, though consensus among its 27 members is still pending. China, the world’s largest emitter accounting for nearly 29 percent of annual global emissions, has committed to a 7 to 10 percent reduction from its peak by 2035, but without specifying when that peak will occur, raising questions about its stringency. The United States, under the previous administration’s plan, offered ambitious targets, but with the current leadership under President Donald Trump, implementation remains uncertain, potentially weakening global momentum.
Major emitters like India and Iran have yet to submit their 2035 plans, adding to the incomplete picture. This delay underscores a broader issue: while the Paris Agreement requires NDCs every five years, compliance is uneven, and the synthesis report only captures a fraction of the total. If more ambitious pledges come in before COP30 in Belém, Brazil, later this month, the global projection could improve. The summit, marking the 10th anniversary of the Paris Agreement, is seen as a critical juncture for accelerating action, particularly on finance for developing countries and phasing out fossil fuels.
Beyond emissions cuts, the NDCs increasingly address adaptation, loss and damage, and just transitions. For example, 84 percent of submitting parties discuss financing needs, blending domestic and international sources. This holistic view is encouraging, as climate change isn’t just about mitigation; it’s about building resilience in vulnerable communities. Yet, the report warns that without “major acceleration,” the world risks overshooting safe temperature limits. Projected per capita emissions for submitting parties drop from 7.6 tons of CO2 equivalent in 2019 to 5.3 tons by 2035, but globally, this trajectory aligns more with 2-degree scenarios than 1.5 degrees.
The implications of falling short are dire. Already, 2025 has seen record-breaking heatwaves, devastating floods in regions like South Asia and Europe, and wildfires ravaging forests worldwide. A mere 10 percent reduction means emissions would still hover around 53 gigatons of CO2 equivalent annually by 2035, compared to the 24 gigatons needed for 1.5 degrees. This could lock in irreversible changes, such as the collapse of ice sheets or coral reefs, disproportionately affecting low-income nations that contribute least to the problem.
To close the gap, experts call for enhanced international cooperation. Wealthy countries must deliver on their promises of climate finance—estimated at hundreds of billions annually—to enable developing nations to leapfrog dirty energy sources. Accelerating the shift to renewables, improving energy efficiency, and protecting forests are key levers. The report also highlights the role of long-term strategies, with many NDCs aiming for net-zero emissions by mid-century, but immediate action is crucial to make those goals credible.
In essence, the UN’s latest assessment is a mixed message: progress is underway, with emissions poised to peak and decline for the first time, but the pace is agonizingly slow. As Stiell emphasized, we are entering a “new era” of climate action, yet it demands urgent scaling up. With COP30 on the horizon, the world has an opportunity to recalibrate. Will nations rise to the challenge, or will the brink become a tipping point? The next few years will tell, but one thing is clear: 10 percent is a start, not a solution.
Looking ahead, the full picture will emerge as more NDCs are submitted. If major holdouts like India step up with bold targets, the global reduction could edge higher. Meanwhile, technological advancements in clean energy, such as solar and wind outpacing fossil fuels in many markets, offer additional optimism. Civil society and businesses are also pushing boundaries, with initiatives like corporate net-zero pledges complementing government efforts. Yet, without policy reinforcement, these won’t suffice. The report serves as a wake-up call: the pledges promise a drop, but true sufficiency requires transformation on a scale we’ve yet to achieve.
