STIP Forward

Ten years ago, world leaders of almost 200 nations reached an historic agreement to reduce greenhouse gas emissions and stave off the worst impacts of global warming by targeting a global temperature rise of no more than 1.5C. The Paris climate compact of 2015 was not without flaws and compromise, but it was a great achievement to secure signatures from so many countries to a legally binding document on addressing climate change.

One key element agreed was to review progress every five years. The national pledges in 2015 were insufficient to meet the 1.5C or even 2C maximum target, so ambition and action had to ramp up over time. But it was not a smooth ride. Some of the pledges were delayed by domestic politics or watered down by links to economic indicators.

However, the global agreement galvanised cities, who met in a parallel conference at the time. In just five years, walking, cycling, shared electric transport and public transport became the preferred modes of travel and of delivery over private motor vehicles run on fossil fuels. Cities pushed for green building standards, retrofitting buildings for the 21st century and insisting on carbon neutrality for iconic new developments. Such initiatives were supported by large private sector investment, as companies strove to become market leaders in the green economy and secure high-skilled employment for the future.

Thus, the world was on target in 2020 due to local action. However, to continue on that path over the last five years has required the international community to step forward again. We live in a local-global world, where nations can only offer so much, where countries may have less power over their own environment than a group of their neighbours.

Therefore, we have prepared this document, to be modified and ratified at the Climate Review 2025 conference in December. It is the Spatial, Trans-national Infrastructure Plan, and it brings together all infrastructure matters which are international and/or inter-continental. Such matters include aviation, shipping, long-distance pipelines, aqueducts and viaducts, watersheds and river systems, satellites and space installations.

Scientists, activists, economists, planners, senior civil servants, and diplomats have contributed to the pages of the STIP, ensuring it is based on accurate data and appropriate forecasts. We are aware that many of these topics are of strategic, international importance and must be dealt with delicately. However, as was highlighted in 2015, their absence in the original agreement and in many national pledges undermined the ambitions of the accord. Therefore, this Plan considers the impacts and outcomes of such infrastructure on trans-national and global climate without reference to national boundaries in order to maintain neutrality.

Through the work of trans-national teams and computers programmed to remove national bias, this document then offers spatial recommendations for international, inter-continental and global infrastructure. For example it proposes the appropriate number of hub airports and flight patterns in, to and from Western Europe to maximise the carbon efficiency of aviation, without undermining national economies.

We are offering to the world what many countries should offer to their citizens if they are serious about social, economic and environmental sustainability: spatial planning. If accepted by world leaders at the 2025 Review, these spatial planning recommendations will help us take the next step or STIP in preserving our planet for future generations.

 

Sarah Gomez-Chen

UN Climate Ambassador

November 2025

 

 

 

 

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