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Hot weather can increase the risk of natural disasters like droughts and wildfires, now, there is evidence extreme heat can increase harmful chemicals in the air.A study published recently in Science Advances looked at asphalt under different temperature conditions.“A main finding is that asphalt-related products emit substantial and diverse mixtures of organic compounds into the air, with a strong dependence on temperature and other environmental conditions,” says Peeyush Khare, a Yale chemical and environmental engineer and the lead author of the study, in a statement.The researchers took real-world samples of fresh road asphalt and put them in a controlled furnace with purified air. They heated the samples to temperatures between 104 and 392 degrees Fahrenheit, and measured the chemical components in the air.Total emissions nearly doubled when temperatures went from 104 to 140 degrees. At 104 degrees, 94 percent of the emissions measured were hydrocarbons.The group also exposed the asphalt samples to replicated solar heat, including UVA and UVB wavelengths, and found the rate of emission of potentially harmful chemicals increased. Showing that not only heat, but also solar radiation contributed to asphalt producing air pollution.Paved surfaces and roofs make up approximately 45% and 20% of surfaces in U.S. cities, respectively.Asphalt can be quite a bit hotter than the air around it, getting about 40 to 60 degrees warmer than the recorded air temperature.The researchers concluded that while policies and regulations have been put in place about car emissions and other forms of air pollution, asphalt should not be overlooked as a contributor.“It's another important non-combustion source of emissions that contributes to SOA (secondary organic aerosol) production, among a class of sources that scientists in the field are actively working to constrain better,” Drew Gentner, associate professor of chemical & environmental engineering, said. 1983

Here are several things the National Transportation Safety Board will examine as it investigates the limousine crash that killed 20 people in upstate New York last week: 177

Gov. Whitmer (D-MI) jokes before going live: "It's not just Shark Week ... it's Shark Week *mouths expletive*" pic.twitter.com/KSndbTvLZi— The Recount (@therecount) August 18, 2020 188

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Geese are terrifying. Everyone knows this. Their bites hurt like hell and they have no respect for children or the elderly. In fact, they are the second-most terrifying bird behind turkeys (large, tenacious) and ahead of crows (eidetic, vengeful).So this momentous trio of photographs showing a Canada goose absolutely trucking a high school golfer near Blissfield, Michigan, is just a reminder of the natural order of things. You can have, as one Twitter user put it, a "quiver full of bird maulers" and a whole high school athlete's worth of physical power, but the goose is going to win every time. It's science.The unlucky human sacrifice here is Isaac Couling, a member of the Concord High School golf team. According to Blissfield Golf Coach Steve Babbitt, Couling, 16, was competing in the Madison Tournament at the World Creek Golf Course in Adrian, Michigan, when terror rained down."The group just finished teeing off on hole #7 and were walking down the fairway," Babbitt told CNN in an email. "They were aware of a goose nest on their left which they were looking at but not bothering when from behind them and to the right came the guard goose (protecting the nest)."Then came a rather alarming escalation, a whole Shakespearean tragedy in three acts. The Blissfield Athletics Twitter account explained that Couling was caught off guard by the charging bird as he was keeping an eye on another, probably equally threatening, goose.As Couling attempted to flee the chaos he tripped, allowing the goose a clear coup de grace.Said Blissfield Athletics on Twitter: "And you thought golf was boring?"Massive credit should be given to Devon Pitts of Blissfield, the photographer who caught this inspiring and terrifying moment of nature in action."You can say [she] was at the right place at the right time," Babbitt said.By all accounts, Couling is fine despite his close brush with wingèd evil."I did par that hole," he told the Detroit News. CNN has reached out to Couling for further comment.The-CNN-Wire 2023

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