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
Landslides in Alaska. Air quality in Atlanta. Clouds of fire in the west. From the Arctic fringe to agricultural areas, NASA’s new class of Earth Venture suborbital missions is preparing to deliver science that will benefit communities in the United States and beyond. The six projects will mobilize hundreds of scientists and pilots from NASA,
After a slow start to Canada’s 2026 fire season, activity rebounded in late June amid dry, warm conditions and moved back closer to the 25-year average. As of mid-July, nearly 850 fires were actively burning across the country, according to the Canadian Interagency Wildfire Centre. More than 180 of them burned in Ontario. This NOAA-21
Chiang Mai, Thailand’s second-largest city, lies within a network of narrow valleys in the country’s northern highlands. Though the historic city is known for panoramic views of the surrounding mountains, clear skies have become less common. In recent decades, smoke has increasingly darkened the skies during the dry season, particularly in March and April. A