July 15, 2021 In 2000, atmospheric scientists from the U.S. Naval Research Laboratory (NRL) first reported that smoke plumes from intense wildfires could spawn towering thunderstorms that channeled smoke as high or higher than the cruising altitude of jets. These pyrocumulonimbus, or pyroCb, events wowed scientists at the time. Prior to that discovery, […]

This handout photo courtesy of BC Wildfire Service shows two plumes of smoke from the Long Loch wildfire and the Derrickson Lake wildfire, British Columbia, on June 30, 2021. Ottawa prepared Friday to send military aircraft and other help to evacuate towns and fight more than 100 wildfires in western […]

June 21, 2021 Exceptional drought has gripped much of Arizona for months. In June 2021, a potent heat wave sent temperatures soaring above 115°F (46°C) on multiple days. Now extreme fires are raging throughout the state. On June 21, 2021, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image of smoke streaming from […]

The relationships among CAW, heatwaves, wildfires, and pollution. Anomalous anticyclones characterize the atmospheric circulation that develops concomitantly over the three remote regions around the summertime Arctic (July and August). The authors named it the circum-Arctic wave (CAW) pattern. These anticyclones induce warm and dry conditions from the surface to the […]

Researchers call for revisions to air-quality monitoring guidelines to consider the sources of emissions. Researchers at Scripps Institution of Oceanography at UC San Diego examining 14 years of hospital admissions data conclude that the fine particles in wildfire smoke can be several times more harmful to human respiratory health than […]

A view of the Riverside Fire from La Dee Flats on the Mt. Hood National Forest on Sept. 9, 2020. The fire encompassed over 138,000 acres, largely on the Mt. Hood National Forest. Credit: U.S. Forest Service – Pacific Northwest Region The Clackamas Basin rarely experiences the intense fire activity […]

A new study led by Swansea University reveals that only 10% of the forest that is left on two Indonesian islands remains fire-resistant. The researchers warn that protecting this is crucial for preventing catastrophic fire. Tropical deforestation exacerbates recurrent peatland fire events in this region. These release globally significant greenhouse […]