October 2026
All columns and Brief analyses.
10 results
Erhai Lake monitoring links rain to short bursts of pollution
Monitoring in China’s Erhai Lake linked rainfall events with short-lived changes in phosphorus, ammonium nitrogen and turbidity. The single observational study combined water measurements with 127 rain events and found that rainfall accumulated over previous weeks also mattered. Models transferred unevenly between years, leaving the method suitable for local risk screening rather than ready-made operational forecasts.
Euro sinks to a 17-month low as worries over French debt and politics deepen
The euro fell to 1.1161 dollars in Monday’s Asian trading, its weakest level since May 2025, after four straight weekly declines. Investors are worried about France’s debt and political gridlock before next year’s election, and the previous week’s global bond sell-off had hit French government debt. The dollar index rose about 0.5 per cent even as bets on an October Fed rate rise faded, and most Asian currencies weakened against it.
Eurozone business growth reaches its strongest pace since April 2023
The eurozone’s final September business survey confirmed the strongest expansion since April 2023. The composite purchasing managers’ index rose to 53.1 from 52 in August, with both services and manufacturing improving. New orders strengthened and overseas demand recovered, while cost and selling-price pressures increased. The survey points to stronger activity, but its growth estimates are not official gross domestic product figures.
FBI arrests woman accused of watching Taiwan president’s family
US investigators arrested Wanying Zhang at Los Angeles airport and charged her with acting as an unregistered foreign agent. They allege she collected images and vehicle information about Taiwan President Lai Ching-te’s son and his family near Seattle for Chinese officials. A federal court appearance is planned; the accusations remain unproven.
Firmus plans to reserve half its IPO for existing investors
Australian data-centre operator Firmus plans to allocate about half its initial public offering to existing investors, according to Bloomberg and Reuters reporting. The proposed allocation would give current shareholders a large role in the offering. Bloomberg also reported an earlier end to bookbuilding. The allocation remains under discussion, so neither the final shareholder split nor completion of the offering has been established.
Five-rotor aircraft simulation moves a liquid load with less tilt
A single peer-reviewed simulation study modelled a five-rotor aircraft that separates horizontal movement from airframe tilt. A central rotor supplies sideways thrust while four outer rotors support the conventional layout. Position errors and tilt were lower than in the comparison model under the tested disturbances. No physical prototype flew, and detailed liquid sloshing was omitted, leaving real hazardous-liquid transport safety unvalidated.
Flávio Bolsonaro leads Brazil’s presidential count
Flávio Bolsonaro was ahead of President Luiz Inácio Lula da Silva with more than 90 per cent of Brazil’s presidential votes counted. The reported shares were 48.05 per cent and 43.97 per cent respectively. Neither had crossed the first-round majority threshold at that stage, putting the two rivals on course for an October 25 runoff.
Four states agree a follow-up mechanism for Nile and Red Sea positions
Egypt, Eritrea, Somalia and Sudan adopted a joint declaration in New Alamein on October 4 and agreed on periodic consultations to follow its outcomes. Their positions cover Nile water use, coastal-state responsibility for Red Sea security, and the territorial integrity of Somalia and Sudan. The declaration rejects unilateral measures harming existing downstream Nile water uses.
German intelligence chiefs warn parliament about Russian sabotage risks
Germany’s intelligence chiefs used a public parliamentary hearing to warn about Russian sabotage, threats to critical infrastructure and the risk of a limited confrontation. BND president Martin Jäger said there were no current signs of preparations for a large-scale attack on NATO. The warnings are intelligence assessments, alongside a separate debate about expanding the agencies’ legal powers.
Gold-particle sensor changes resistance as protein concentration rises
A single peer-reviewed laboratory study tested a film containing gold nanoparticles and antibodies as a protein sensor. Increasing GDF-15 concentrations lowered electrical resistance and raised the readout frequency. Antibody-free films lacked the same notable response. Measurements with prepared solutions suggest a compact sensing approach, while patient diagnostic accuracy remains untested and manually deposited films introduce variation between devices.