If there were an apex predator among fires, tropical peatland fires would be a top contender. These fires, which burn in dried wetland soils, are slow-burning, highly polluting, and notoriously difficult to extinguish because they smolder at low temperatures and often burn underground through expansive deposits of peat. By one estimate, peat fires generate three
Scientists have long known that volcanoes can launch large quantities of particles into the stratosphere. In the past few decades, it has become clear that wildfires do this, too, by generating towering, smoke-infused pyrocumulonimbus (pyroCb) clouds. The largest pyroCbs are stunning weather-making features that generate massive thunderheads capable of unleashing lightning, hail, and heavy rain.
In a contrast of fire and ice, smoke from wildland fires mingled with several of the Cascade Range’s prominent, glaciated volcanoes in summer 2026. Astronauts on the International Space Station photographed the scene while orbiting over the U.S. West in late July and early August. Mount Hood, Oregon’s tallest peak at 11,249 feet (3,429 meters),
The start of August 2026 saw ongoing and new wildland fires burning in eastern Washington. West of Chelan, the Little Giant fire continued to produce heavy smoke, while a cluster of smaller fires farther east near Spokane affected tens of thousands of people. The smoke from these and other fires poured east-northeast across the state
Dry storms that emerged over the Cascade Range on the night of July 15, 2026, struck Oregon and Washington with thousands of lightning strikes as they moved east across the states. By the next day, NASA satellites had begun detecting large numbers of wildfires across central and eastern Oregon. Although initially small, these fires intensified
Wildfire activity in Canada increased in July 2026, a time of year when lightning ignition typically increases, according to a seasonal outlook published by several North American fire agencies. The fires caused plumes of smoke across the United States and Canada, affecting air quality in both countries. This animation tracks brown carbon, the organic aerosols