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Tag: wildfires

Heat, wildfires could alter Alaska’s forest composition

Heat, wildfires could alter Alaska’s forest composition

Science
Aug. 26 (UPI) -- If global warming continues unabated and wildfires become bigger, stronger and burn more frequently among northern climates, scientists worry the composition of Alaska's northern forests could be permanently altered. According to a new study, published this week in the journal Nature Plants, warmer temperatures and the threat of fire is likely to enable the spread of deciduous tree species at the expense of evergreens. In simulations, the well-tested ecosystem model called ecosys predicted northern Alaska's conifer population, including black spruce, will decline by 25 percent by the end of the century. The abundance of moss and lichen will decline by 66 percent, according to the ecosys model. Broadleaf deciduous trees like aspen will eventually come to dominate. The shi...
Arctic wildfires: What’s caused huge swathes of flames to spread?

Arctic wildfires: What’s caused huge swathes of flames to spread?

Science
Media playback is unsupported on your device Wildfires are ravaging the Arctic, with areas of northern Siberia, northern Scandinavia, Alaska and Greenland engulfed in flames. Lightning frequently triggers fires in the region but this year they have been worsened by summer temperatures that are higher than average because of climate change.Plumes of smoke from the fires can be seen from space. Mark Parrington, a wildfires expert at the Copernicus Atmosphere Monitoring Service (Cams), described them as "unprecedented".How bad is it? There are hundreds of fires covering mostly uninhabited regions across eastern Russia, northern Scandinavia, Greenland and Alaska. ...
Wildfires disrupt moth-flower relationships, increasing risk of extinctions

Wildfires disrupt moth-flower relationships, increasing risk of extinctions

Science
July 12 (UPI) -- New research in Portugal suggests wildfires disrupt unique relationships between flowers and the specialized moths that pollinate them. In the wake of wildfire, wildflowers take advantage of an ecosystem cleared of larger plant species. Post-fire wildflower blooms prove a boon to daytime pollinators like bees and butterflies, but new research showed moths, which visit flowers at night, aren't so lucky. When scientists surveyed moths from sites across Portugal, they found the insects carry a surprising amount of pollen. In the spring, 95 percent of the moths captured and analyzed were carrying pollen. Scientists also found the pollen of 80 percent of the native flower species being carried by surveyed moths. However, pollen levels measured on moths caught in areas recentl...
California wildfires: Why are so many listed as missing?

California wildfires: Why are so many listed as missing?

World
Over the last few days the number of people unaccounted for in the deadly Camp Fire in northern California has skyrocketed to more than 1,200. The sudden jump has led to some confusion among locals and officials alike.The confirmed death toll of 76 is already a state record, so could this huge number of missing people really still be added to that?The answer is not so simple, as authorities in the worst-hit area, Butte County, have openly admitted.On Friday, when the list first soared to over 1,000, Sheriff Kory Honea described the database as "dynamic"."The information I am providing you is raw data and we find there is the likely possibility that the list contains duplicate names," the sheriff said on Friday.Officials say the l...