Science
BBC visits wildfire front in haze-choked Indonesia
The BBC is in central Kalimantan, where a toxic haze fuelled by wildfires is choking millions of residents.
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Topic
Wildfire
World
Wildfire prompts thousands of evacuation orders in Orange County
Firefighters are battling fast-moving wildfires in Orange County as Santa Ana winds fan the flames.
World
Southern California wildfire engulfs homes, prompts evacuation orders
The fast-spreading Norte Fire in Orange County is fuelled by intense warm winds and unseasonably high temperatures.
World
Wildfire kills 4 firefighters in Indonesia's Mount Bromo national park
The latest victims of Indonesia's wildfires were trapped by thick smoke and fast-spreading flames, authorities said. Meanwhile, the toxic haze from the fires has spread to Indonesia's neighbors.
World
Colombia battles massive wildfire
Colombia’s disaster risk agency says a forest fire in the centre of the country is now partially under control. Around 250 firefighters, supported by volunteers, have been battling the blaze since Saturday, with some 200 hectares affected. Camille Corcoran takes a closer look.
Weather
From toxic blooms to dead zones, how wildfires transform oceans and lakes
Wildfire smoke and ash can reshape aquatic ecosystems long after the flames have been extinguished Wildfires are an increasing problem in Europe and elsewhere. While their immediate effect on air quality is obvious, they can also trigger less visible but significant environmental effects, including algal blooms. An algal bloom is the rapid growth of algae and other plant-like microorganisms. These blooms can become so dense that they change the colour of the lake and seas. Although most are harmless, some produce dangerous toxins. When their blooms die, their decomposition depletes oxygen in t