Nordic Sustainability Briefing — 18 September 2026
Global data released today paint a strained picture of the climate system, from record-low river flows and a likely overshoot of the 1.5°C threshold to worsening wildfire-driven air pollution, while Nordic responses range from stricter green-hosting standards to pilot investments in electric timber transport and farm-based carbon capture.
WMO: 2025 among driest years for the world's rivers in over three decades
The World Meteorological Organization's State of Global Water Resources 2025 finds rivers globally had one of their driest years in more than 30 years, with below-normal flows across 36% of global basin area and a continued decline in terrestrial water storage and glacier mass. The report notes a strengthening El Niño is expected to raise drought risk in some regions and flooding in others.
UNEP report says 1.5°C overshoot is likely, urges 'peak and decline' pathway
A new UNEP report, Limiting Overshoot, concludes global temperature rise is set to cross 1.5°C likely within the next few years, and identifies an 'overshoot, peak, and decline' pathway as the best remaining route to return below the threshold. It stresses that carbon removal must complement, not replace, sustained emissions cuts.
Green Web Foundation to tighten green-hosting rules, dropping offsets
From 1 October 2026 the Green Web Foundation will apply its biggest changes to green-hosting verification since 2019, and carbon offsets will no longer be accepted as evidence that hosting infrastructure is fossil-free. The criteria are aligned with standards such as the RE100 Technical Criteria and the 24-7 Carbon-Free Coalition standard, affecting all new verification and reverification requests.
Norway launches first electric timber truck in Enova-backed pilot
Norway presented its first electric timber lorry at the Lierstranda terminal, framed as a pilot to test zero-emission heavy transport in the forestry sector. The vehicles cost around NOK 2 million more than diesel equivalents and rely on Enova support, and the government says lessons from the trial may inform future rule changes.
Sweden's Klimatklivet sees rising interest in farm-based carbon capture and use
Sweden's Naturvårdsverket reports growing numbers of applications to its Klimatklivet investment programme for bio-CCU projects that capture CO2 and turn it into new feedstock, including a farmer-owned biogas company receiving SEK 27 million. The agency describes bio-CCU as a decisive technology for meeting Sweden's climate targets.
WMO bulletin links worsening wildfire and heatwave pollution to climate
The WMO's sixth Air Quality and Climate Bulletin warns that rising pollution from wildfires and heatwaves risks undermining efforts to improve air quality and protect health, and highlights gaps in monitoring pollutants such as fine particulate matter, ground-level ozone, black carbon and microplastics. It calls for coordinated air-quality and climate policies, noting the two cannot be addressed in isolation.