06/14/2026
I sat at my research desk inside the Policy Research Institute.
I opened my A4 ring-bound notebook and pressed the spiral spine flat against the table.
The cover was bright red.
My right middle finger carries a permanent, hardened indent across its outer edge.
It matches the exact gauge of the notebook's metal binding.
I have pressed my hand against that metal for years, writing equations in field conditions and conference halls.
I am a climate finance economist.
I build mathematical architectures for the financial sector.
For the past three years, I worked to quantify the exact financial cost of a warming planet.
Most analysts treated environmental exposure as a vague, unquantifiable metric.
They looked at general sustainability scores, but they could not calculate the specific financial risk of a changing climate.
I developed a sectoral exposure weighting model to change that.
I separated the financial threat into three distinct categories.
I assigned a specific colour-coded tab in my notebook for each one.
The yellow section tracked transition risk.
The blue section tracked physical risk.
The green section tracked stranded asset probability.
I wrote the designation KH-CRF-01 inside the front cover with a black pen.
I turned to the yellow tab and began drafting the initial weighting matrix.
I spent months calculating the exact correlations between extreme weather events and corporate debt default rates.
I filled eighty pages with statistical models and regression analyses.
I combined the three risk categories into a single composite climate risk score.
It allowed financial portfolios to measure their exact exposure in absolute numerical terms.
I compiled the methodology, the mathematical proofs, and the weighting matrix into a comprehensive manuscript.
I formatted the data tables and the bibliography.
I submitted the work to the Network for Greening the Financial System.
The working paper was accepted and published under the reference NGFS-WP-2021-04.
My name, Kira Holt, was listed as the sole author.
The publication placed the weighting model permanently into the global financial record.
I did not issue a press release.
That was twenty-four months before the think tank decided to launch a commercial index.
Marc is my partner of ten years.
He is also the Director of the think tank.
Eight years ago, I showed him the very first output of the composite climate risk score.
We stood in his office while the institute was quiet.
He looked at the single number on the printed page.
He stared at it for a long time.
The fluorescent lights hummed above his desk.
"You've given analysts something they can actually use," he said.
He was looking at the policy impact of the number.
He saw how regulators and governments would react to a quantifiable metric.
He meant what he said.
I believed him.
That was a real, honest moment between us.
Twenty-four months after NGFS-WP-2021-04 was published, the think tank launched the Climate Risk Index.
The press briefing took place in the institute's main conference hall.
Financial journalists sat in the front rows with their laptops open.
Institute researchers stood along the back walls.
The ambient lighting caught the silver microphones on the podium.
Marc stood at the center of the stage in a dark suit.
The projection screen behind him displayed the final composite risk scores for three major global portfolios.
The numbers on the screen were generated entirely by my sectoral exposure weighting model.
The matrix was identical to the one in my red notebook.
"Financial markets require absolute precision to manage climate exposure," Marc said to the reporters.
"That is the standard we are setting today."
He adjusted the microphone stand.
The journalists typed out his quote.
"This index is the think tank's analytical framework," he said.
He looked directly at the financial press.
He did not look toward the back of the room.
"It was developed through our integrated research programme under my direction," he continued.
He did not say my name.
He did not mention NGFS-WP-2021-04.
He had seen my working paper before the index launch materials were written.
He had searched the public database.
Both the working paper and his launch speech existed at the same time.
He described a published, sole-authored economic model as an analytical framework built under his direction.
Marc knew the difference.
I held a copy of the official launch press release in my hand.
The paper felt heavy.
I walked out of the conference hall while the journalists asked their first questions.
I walked down the quiet corridor.
I went into Marc's office.
My red A4 research notebook was sitting on his desk.
He had taken it to use as a general meeting notepad.
I walked over to the desk.
The notebook was open to a page in the yellow section.
He had written his administrative meeting notes directly over my initial transition risk weighting matrix.
I placed the official press release on his desk next to the notebook.
I turned around.
I walked out of the office.
The press release called the methodology the think tank's analytical framework.
I knew it was NGFS-WP-2021-04.
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