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charisstoma'Botanical Sexism' Could Be Behind Your Seasonal Allergies
https://www.atlasobscura.com/articles/seasonal-allergies-blame-male-trees?utm_medium=atlas-page&utm_source=facebook.com&fbclid=IwAR3RatgkvcpwctpTAVZUeEGb1E8mh0IZ40_TgIrXmHy_MCW8RV2pihTLEPs&fbclid=IwAR0Zv-sbbkkGv1sJ31fJ8Q5ISkSyH6Iz2im_SwhE2R9AxO2BmrdPYqxkOLk
Scariest pollen reference:
Ogren sees gingko* gametes as the far greater threat. Unlike almost every other plant, gingko trees produce motile sperm, capable of swimming in pursuit of germination. Where human sperm each have a single tail, or flagellum, gingko sperm have around a thousand. “Once the pollen gets in your nose, it will germinate and start swimming up there to get to where it’s going,” Ogren says. “It’s pretty invasive.”
Unsurprisingly, climate change isn’t helping. According to a recent study in Lancet Planetary Health, the increase in extreme temperatures contributes to more potent allergy seasons. Summers come earlier and last longer, and certain species, such as cypress and juniper, have begun blooming again in the fall, Ogren says. In Durham, Lilley says he’s never seen anything as monumental as April’s pollen clouds in the city before. While it’s hard to say if the yellow sky was directly linked to climate change, pollenpocalypses will only become more and more common. It’s easy to see these clouds as freak occurrences—like a megadrought or superstorm—but they may be a sign of things to come.
*ginkgo - corrected spelling
The Ginkgo tree is a living fossil, with the earliest leaf fossils dating from 270 million years ago. It was rediscovered in 1691 in China and was brought to this country in the late 1700s. The seeds and leaves have been (and are still today) used in medicine throughout the world. https://www.arborday.org/trees/treeguide/TreeDetail.cfm?ItemID=1092
The Permian–Triassic (P–Tr or P–T) extinction event, colloquially known as the Great Dying, the End-Permian Extinction or the Great Permian Extinction, occurred about 252 Ma (million years) ago, forming the boundary between the Permian and Triassic geologic periods, as well as between the Paleozoic and Mesozoic eras.
The Triassic Period was the first period of the Mesozoic Era and occurred between 251 million and 199 million years ago. It followed the great mass extinction at the end of the Permian Period and was a time when life outside of the oceans began to diversify.
At the beginning of the Triassic, most of the continents were concentrated in the giant C-shaped supercontinent known as Pangaea.
The Great Permian Extinction, which occurred approximately 250 million years ago, was caused by massive volcanic eruptions that led to significant environmental changes, new evidence shows.https://www.sciencedaily.com/releases/2017/10/171002105227.htm
The largest extinction in Earth's history marked the end of the Permian period, some 252 million years ago. Long before dinosaurs, our planet was populated with plants and animals that were mostly obliterated after a series of massive volcanic eruptions in Siberia.
Fossils in ancient seafloor rocks display a thriving and diverse marine ecosystem, then a swath of corpses. Some 96 percent of marine species were wiped out during the "Great Dying," followed by millions of years when life had to multiply and diversify once more.
What has been debated until now is exactly what made the oceans inhospitable to life – the high acidity of the water, metal and sulfide poisoning, a complete lack of oxygen, or simply higher temperatures. Dec 6, 2018 https://earth.stanford.edu/news/what-caused-earths-biggest-mass-extinction#gs.cgfi97
https://www.livescience.com/43295-triassic-period.html
The Ginkgo has survived 3 mass extinctions
End Permian, 251 million years ago, 96% of species lost. ...
End Triassic, 200 million years ago, 80% of species lost. ...
End Cretaceous, 66 million years ago, 76% of all species lost.
https://cosmosmagazine.com/palaeontology/big-five-extinctions
https://www.atlasobscura.com/articles/seasonal-allergies-blame-male-trees?utm_medium=atlas-page&utm_source=facebook.com&fbclid=IwAR3RatgkvcpwctpTAVZUeEGb1E8mh0IZ40_TgIrXmHy_MCW8RV2pihTLEPs&fbclid=IwAR0Zv-sbbkkGv1sJ31fJ8Q5ISkSyH6Iz2im_SwhE2R9AxO2BmrdPYqxkOLk
Scariest pollen reference:
Ogren sees gingko* gametes as the far greater threat. Unlike almost every other plant, gingko trees produce motile sperm, capable of swimming in pursuit of germination. Where human sperm each have a single tail, or flagellum, gingko sperm have around a thousand. “Once the pollen gets in your nose, it will germinate and start swimming up there to get to where it’s going,” Ogren says. “It’s pretty invasive.”
Unsurprisingly, climate change isn’t helping. According to a recent study in Lancet Planetary Health, the increase in extreme temperatures contributes to more potent allergy seasons. Summers come earlier and last longer, and certain species, such as cypress and juniper, have begun blooming again in the fall, Ogren says. In Durham, Lilley says he’s never seen anything as monumental as April’s pollen clouds in the city before. While it’s hard to say if the yellow sky was directly linked to climate change, pollenpocalypses will only become more and more common. It’s easy to see these clouds as freak occurrences—like a megadrought or superstorm—but they may be a sign of things to come.
*ginkgo - corrected spelling
The Ginkgo tree is a living fossil, with the earliest leaf fossils dating from 270 million years ago. It was rediscovered in 1691 in China and was brought to this country in the late 1700s. The seeds and leaves have been (and are still today) used in medicine throughout the world. https://www.arborday.org/trees/treeguide/TreeDetail.cfm?ItemID=1092
The Permian–Triassic (P–Tr or P–T) extinction event, colloquially known as the Great Dying, the End-Permian Extinction or the Great Permian Extinction, occurred about 252 Ma (million years) ago, forming the boundary between the Permian and Triassic geologic periods, as well as between the Paleozoic and Mesozoic eras.
The Triassic Period was the first period of the Mesozoic Era and occurred between 251 million and 199 million years ago. It followed the great mass extinction at the end of the Permian Period and was a time when life outside of the oceans began to diversify.
At the beginning of the Triassic, most of the continents were concentrated in the giant C-shaped supercontinent known as Pangaea.
The Great Permian Extinction, which occurred approximately 250 million years ago, was caused by massive volcanic eruptions that led to significant environmental changes, new evidence shows.https://www.sciencedaily.com/releases/2017/10/171002105227.htm
The largest extinction in Earth's history marked the end of the Permian period, some 252 million years ago. Long before dinosaurs, our planet was populated with plants and animals that were mostly obliterated after a series of massive volcanic eruptions in Siberia.
Fossils in ancient seafloor rocks display a thriving and diverse marine ecosystem, then a swath of corpses. Some 96 percent of marine species were wiped out during the "Great Dying," followed by millions of years when life had to multiply and diversify once more.
What has been debated until now is exactly what made the oceans inhospitable to life – the high acidity of the water, metal and sulfide poisoning, a complete lack of oxygen, or simply higher temperatures. Dec 6, 2018 https://earth.stanford.edu/news/what-caused-earths-biggest-mass-extinction#gs.cgfi97
https://www.livescience.com/43295-triassic-period.html
The Ginkgo has survived 3 mass extinctions
End Permian, 251 million years ago, 96% of species lost. ...
End Triassic, 200 million years ago, 80% of species lost. ...
End Cretaceous, 66 million years ago, 76% of all species lost.
https://cosmosmagazine.com/palaeontology/big-five-extinctions
