An unusually powerful Arctic cold wave swept across southeastern Europe in the final days of April and the opening of May 2026, delivering record-low temperatures, snowfall, and destructive frosts to Greece, Turkey, and Cyprus — regions where spring warmth is normally well established by this time of year. The event was driven by a large-scale atmospheric pattern known as an "Omega Block" — a persistent high-pressure ridge over the North Atlantic that effectively locked the westerly jet stream in place and funnelled Arctic air far to the south. Meteorologists at Severe Weather Europe described the intrusion as "potentially catastrophic" for the Balkans and the Black Sea region, noting that Arctic air mass intrusions of this scale are rare for early May. The anomaly traces back to two Sudden Stratospheric Warming (SSW) events — an early one in late November 2025 and a major one in February 2026 — which together fractured the polar vortex and left a residual Greenland...
Diplomacy between Washington and Tehran lurched into a new and uncertain phase over the weekend as Iran formally submitted a sweeping 14-point peace proposal to the United States through Pakistani mediators, while President Donald Trump publicly declared that he could not imagine the plan would be acceptable — even before he had finished reading it. The proposal, details of which were disclosed by Iran's semi-official Tasnim news agency and the state-owned Press TV on Saturday, represents Tehran's most comprehensive formal response yet to a nine-point framework the US had earlier presented. At its core, the Iranian document demands that all outstanding issues — including the nuclear question, the Strait of Hormuz, and the lifting of sanctions — be resolved within thirty days, rejecting the two-month ceasefire extension Washington had proposed as the basis for continued negotiations. Among the key Iranian demands: formal guarantees against any future US or Israeli military aggre...