Weekly Global Risk Digest, Issue 019

A glacier collapse on Langtang Lirung on 26 August sent a glacial-lake outburst flood roughly 72 kilometres down the Trishuli and Bhotekoshi river systems through Nepal's Rasuwa and Nuwakot districts and into Tibet. Aggregated reporting as of 3 September puts the toll at 1,273 dead and 4,757 missing, with 1,473 injured. 589 of the missing in Nepal are foreign nationals, and roughly 900 workers are unaccounted for at eleven hydropower project sites.

For anyone with travel into Nepal, the operational picture matters more than the toll. Dozens of kilometres of road and multiple bridges are gone. The Trishuli corridor — the main overland route between Kathmandu and the Chinese border — is severed, and the Gyirong border checkpoint no longer exists. A debris dam a kilometre upstream of Gyirong has formed a new lake that authorities are watching by satellite, radar and drone; their stated confidence is that they can give about thirty minutes of warning if it goes. Search operations have already been halted once because of it.

Pakistan's monsoon sits underneath all of this at its climatological August–September peak under an above-normal rainfall forecast. Environmental rose eight points to 62 and Logistics seven to 62 — the largest single-dimension move this Index has made. You should know that we did not capture this event in Issue 18 and are correcting for it here; our archive records the failure and the fix.

The pattern we flagged last issue repeated for the fourth time. A US strike on Larak Island on 30 August ended the 29-night pause; on 1 September CENTCOM struck roughly 100 IRGC targets across Sirik, Konarak, Bandar Abbas, Jask, Asaluyeh, Ahvaz and Qeshm Island. A residential strike in Kuhestak killed at least four civilians including a four-year-old and wounded 63; four weapons experts consulted by Reuters concluded the house was likely hit directly by a US munition.

Iran answered against five countries in four days — Jordan, Bahrain, Iraq, Kuwait and the UAE. Kuwait invoked UN Article 51 self-defence language for the first time in this conflict, which is a Gulf state publicly reserving the right to act on its own. The diplomatic channel that existed a week ago is gone: Secretary Rubio says the June memorandum “in many ways, has sailed,” the Vice President has set cessation of attacks on shipping as a precondition for any talks, and the President says he couldn't care less whether Iran signs.

Brent went above $97 on 3 September, its highest since 23 July, and settled near $95 — erasing the 7% decline that justified last week's easing. Hormuz is closed at Day 189 at about a tenth of pre-war throughput; the Joint Maritime Information Center rates conditions severe. Security 91 and Political 90 are the highest scores this Index has recorded in either dimension. The region sits four points below CRITICAL.

The composite did not move and the picture got materially worse. Russia struck Kyiv on six consecutive nights — unprecedented in more than four and a half years of full-scale war — culminating on the night of 1 September in a bombardment lasting over twelve hours that killed twelve people, wounded more than a dozen including three children, and killed an Indian citizen. Ukraine's air force logged 218 drones and decoys, roughly a third of them jet-powered variants built to defeat air defences, alongside cruise missiles, ballistic missiles and glide bombs.

Last issue we held Security at 74 specifically because Ukraine had downed seven ballistic missiles on 27 August — a documented recovery in interception. That offset has not survived: Kyiv is now actively hunting for Patriot interceptors, so Security rises a point to 75. We drafted it at 76 and cut it back, and you should know why. Six consecutive nights is unprecedented tempo, but this war has been grinding in broadly this fashion since 2024, and the night of 5 August that we scored two issues ago killed more people than the night of 1 September did. Tempo is not escalation. An index that adds a point every time the pace rises, and never takes one back when it falls, turns a familiar war into a false emergency — and a CRITICAL score would have said “severe or life-threatening” about a region that also contains Prague and Tallinn.

The item that should concern you most if you have people moving through Ukraine is not the missile count. A ballistic missile hit Ukrzaliznytsia infrastructure and killed six railway employees — the rail network is the country's primary civilian evacuation route. And the Orlivka international ferry crossing near the Romanian border was targeted. That is a cross-border exit being deliberately put at risk.

Hurricane Lowell reached Category 5 with 160 mph winds this week — the first Category 5 in the Central Pacific since 2018 — and stood at Category 4 with 140 mph winds and 945 mb on 3 September, about 465 miles south-southwest of Hilo. A weakening upper ridge and a jet-stream dip are forecast to turn it north toward the islands, passing west of Niihau late Monday and holding hurricane strength into Tuesday. Hawaii declared a statewide emergency on 2 September. If you have Hawaii travel booked for the Labor Day week, this is the item to act on today rather than Monday.

Underneath the storm, the fire season has outrun its own baseline. NIFC's 1 September outlook records 8,238,284 acres burned at 166% of the ten-year average — up from 146% when we first scored this as a standing driver three issues ago — with the National Preparedness Level held at 5 for the whole of August and above-normal September fire potential across the Northwest, northeastern California, the Great Basin, the Southwest, the northern Great Lakes, and a flash-drought belt running from Texas to Mississippi. El Niño is forecast to become very strong by November. Two of the three points we added this week come off when Lowell passes. The third does not.