Haze

Sandstorms across the Middle East have delayed flights, closed schools and hospitalised thousands — a phenomenon experts say could worsen as climate change warps regional weather patterns. Saudi Arabia on Tuesday became the latest country…

Haze is formed when a cocktail of various gaseous pollutants is oxidized and forms particulate matter diffusing sunlight. This process is mainly mediated by hydroxyl radicals (OH), and researchers have now discovered a new route to their…

As the Omicron surge begins to recede in many regions of the country, the governors of New Jersey, Connecticut and Delaware have announced that they will lift school mask mandates in the coming weeks.But the move to loosen these politically…