Five items this week. Global sovereign borrowing reached a record USD 16 trillion in 2025 as OECD government debt-to-GDP ratios average above 90 per cent and rising interest costs are compressing discretionary spending. Rhenium, produced only as a by-product of copper and molybdenum smelting, is capped at approximately 50 tonnes per year globally with no primary mines and no substitute in jet engine turbine blades. Global offshore wind additions reached approximately 33 gigawatts in 2025, with China accounting for 70 per cent of new capacity while the United States added less than one gigawatt. OECD pension funds managing USD 38 trillion in assets are shifting allocations from fixed income toward real assets and infrastructure as inflation experience reshapes long-run return assumptions. And the FAO Global Forest Resources Assessment 2026 records net forest loss of 4.2 million hectares per year in the 2020 to 2025 period, representing 21 million hectares of net loss over the assessment window.
- The OECD Global Debt Report 2026 found that global sovereign borrowing needs reached USD 16 trillion in 2025, a record driven by fiscal deficits, debt rollovers, and the cost of servicing elevated debt stocks at persistently positive real interest rates, with OECD government debt-to-GDP ratios averaging above 90 per cent across the bloc.
Rising interest payments are consuming a larger share of government revenues across OECD countries, with average debt service representing approximately 8 per cent of total government revenue. Discretionary spending capacity for infrastructure, industrial support, and emergency fiscal buffers is correspondingly compressed. The OECD identifies the combination of high debt levels and persistently elevated real interest rates as the primary fiscal risk for advanced economies through the late 2020s, noting that debt sustainability calculations are now sensitive to interest rate paths in ways they were not during the 2010 to 2021 low-rate period.
Why it matters: Sovereign debt at these levels means governments have less room to absorb supply shocks, fund infrastructure, or maintain subsidy buffers against commodity price spikes. Austerity imposed by debt service obligations tends to compress public investment in grid infrastructure, water treatment, and emergency preparedness. Physical resilience built at the household level substitutes, in part, for public investment that fiscal constraints make less reliable over the decade ahead.
Source: OECD Global Debt Report 2026 – OECD
- Chile and the United States together supply approximately 80 per cent of global rhenium output, according to USGS Mineral Commodity Summaries 2026, from a global production base of approximately 50 tonnes per year produced entirely as a by-product of molybdenum refining from copper porphyry ores, with no primary rhenium mines in operation anywhere in the world.
Rhenium is used principally in nickel-based superalloy turbine blades for jet engines and industrial gas turbines, where it enables sustained operation at temperatures above 1,000 degrees Celsius. No available substitute provides equivalent performance in that application. Secondary uses include petroleum reforming catalysts and high-temperature electrical contacts. Because rhenium is extracted only during molybdenum processing, its output is governed entirely by copper and molybdenum mining decisions made for markets with no connection to rhenium demand. The USGS identifies rhenium as a critical mineral and notes that US net import reliance is approximately 55 per cent of apparent consumption.
Why it matters: A mineral produced only as a by-product of two other materials cannot be expanded in response to its own demand. As commercial aviation recovers to pre-2020 traffic volumes and new-generation engines require higher rhenium content per turbine blade, demand grows against a supply ceiling that other markets control. Recovery from end-of-life turbine hardware is the primary supply supplement, but recycling rates are limited by the difficulty of separating rhenium from superalloy scrap at scale.
Source: USGS Mineral Commodity Summaries 2026: Rhenium – US Geological Survey
- Global offshore wind installations reached approximately 33 gigawatts in 2025, with China accounting for roughly 70 per cent of new capacity according to the Global Wind Energy Council’s Global Wind Report 2026, pushing cumulative global offshore capacity above 310 gigawatts.
Europe added approximately 7 gigawatts in 2025, led by the United Kingdom, Germany, and the Netherlands. The United States added less than one gigawatt as permitting delays, power purchase agreement cancellations, and supply chain constraints continued to slow deployment. The GWEC identifies floating offshore wind as the technology required to access deeper water sites with stronger wind resources, but notes that floating installations remain at pre-commercial demonstration scale. Steel, copper, rare earth permanent magnets for direct-drive generators, and high-voltage subsea cable manufacturing are identified as the primary supply chain constraints on offshore expansion in markets outside China.
Why it matters: The concentration of offshore wind build-out in China shapes where manufacturing capability, supply chains, and engineering expertise accumulate. European and US offshore markets are growing but on timelines constrained by supply chains that developed around China’s pace. For buyers of offshore-exposed industrial metals, Chinese build-out provides near-term demand while European and US catch-up provides the medium-term volume that keeps the structural case in place.
Source: Global Wind Energy Council: Global Wind Report 2026 – Global Wind Energy Council
- OECD pension fund assets reached approximately USD 38 trillion across member countries in 2025, according to OECD Pension Fund Statistics 2026, with the share allocated to bonds declining from above 50 per cent in 2014 to below 40 per cent in 2024 as inflation eroded real returns on fixed-income holdings and infrastructure and real asset allocations expanded.
Infrastructure debt and equity, spanning regulated utilities, toll roads, and energy transition assets including renewable generation and grid infrastructure, now constitutes a meaningful allocation in the largest national pension systems across Canada, Australia, the Netherlands, and Nordic countries. The OECD notes that real asset allocations provide inflation linkage that fixed-income portfolios did not deliver in the 2021 to 2024 inflationary period. Defined benefit scheme managers cite infrastructure’s long duration and inflation-linked cashflows as complementary to liability-matching requirements.
Why it matters: Pension funds managing USD 38 trillion are reducing bond exposure and increasing real asset exposure precisely because real assets protect against inflation in ways financial proxies do not. The institutional reallocation is driven by the same logic as the household case: hard assets with physical utility value protect against debasement that fiat instruments cannot hedge. The direction of the world’s most analytically resourced capital and the direction of physical asset accumulation as a household strategy are aligned.
Source: OECD Pension Fund Statistics 2026 – OECD
- The FAO’s Global Forest Resources Assessment 2026, compiled from reports submitted by 190 countries and territories, found that the world lost approximately 4.2 million hectares of forest net per year between 2020 and 2025, a rate lower than the 4.7 million hectares per year of the preceding five-year period but still representing 21 million hectares of net loss over the assessment window.
Primary and old-growth forest declined at a faster rate than the aggregate net figure, as planted forest expansion and natural regeneration in some regions partially offset tropical primary forest loss. Sub-Saharan Africa and South America recorded the largest absolute net losses. The assessment finds a clear relationship between intensifying agricultural land conversion and declining per-capita forest cover across tropical regions. Watershed forests, whose decline affects regional water cycles and groundwater recharge, fell in 71 of the 148 countries reporting detailed spatial data.
Why it matters: Forest loss is a direct measure of depletion pressure on the land system underpinning food, water, and climate regulation. The slowing net loss rate is partly positive but conceals accelerating primary forest decline within the aggregate. Watershed forest reduction in 71 countries translates into groundwater recharge deficits that play out over decades on the same timeline as aquifer depletion. The finite resource here is not timber but the hydrological and soil function that standing forests provide, which cannot be replanted on a commercial timescale.
Source: FAO Global Forest Resources Assessment 2026 – UN Food and Agriculture Organisation
The sovereign debt and pension reallocation items connect to the real assets argument in Physical Gold and Silver for EU Buyers. The energy and grid infrastructure thread connects to What Is Energy Sovereignty.