【TED】科普动画集锦 735 Why certain naturally occurring wildfires are necessary 04:22 【TED】科普动画集锦 736 Why do airlines sell too many tickets 05:00 【TED】科普动画集锦 737 Why do animals form swarms 04:07 【TED】科普动画集锦 738 Why do animals have such different lifespans 04:57...
Stay inside, Seattleites. That's been the advice from weather experts this week as historic wildfires spread up and down the west coast, causing smoke to
Smoke from wildfires raging in eastern Canada filled lungs and turned skies orange across the northeastern United States, most dramatically in New York City and the surrounding area, for days earlier this month. Although people in western North America have become used to such conditions in the ...
Crews in Western Canada are currently facing 130 active wildfires, including 14 considered out of control. Here's why it's so bad.
but generally these fires are low intensity and are very healing for the landscape. It’s rarely like the pictures you see of raging wildfires. Yosemite plans for approximately 16,000 fire acres annually. Some of that is from fires starting naturally like a lightning strike. Others are our te...
Of the tens of thousands of wildfires that break out each year. Only a few get this bad. But they're the ones that burn the most land, destroy the most homes, and cost the most in often futile efforts to fight them. Robert Bonnie: Fire has always been part of the landscape. It wi...
Yet even a perfect scientific model could not banish all uncertainty. Climate change involves the messy world of policy as well as the clarity of physics. Scientists may be able to model how a planet that is 2°C warmer than in pre-industrial times increases the risk of wildfires in a par...
the latter spewed by wildfires, power plants and diesel engines. Monoterpenes break down quickly in the presence of NO3, drastically reducing the reach of olfactory cues that moths rely on to locate flowers. In wind tunnel experiments, nocturnal levels of NO3typically found in urban settings caused...
Smoke from wildfires obscures the California sky on Aug. 19, 2020. Credit:Lauren Dauphin/NASA Earth Observatory If I dare to give the coronavirus credit for anything, I would say it has made people more conscious of the air they breathe. A friend texted me this week after going for a jo...
In most animals, females are larger than males, but in most mammals, males are larger than females. A new analysis published in Mammal Review examines the potential drivers of these differences.