environmental history

Mrs. O’Leary and the Great Chicago Fire of 1871

This week’s posts feature women who became famous for something they didn’t do. And we begin with the case of Mrs. O’Leary and the Great Chicago Fire of 1871.On a windy day on October eighth of that year, after a lengthy dry season, a barn belonging to the Irish immigrants Mr and Mrs O’Leary caught […]

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Central Pennsylvania’s Hemlock Natural Area

Near Big Spring State Park in central Pennsylvania lies the Hemlocks Natural Area. Made up of about 120-acres of rare old-growth forest, the region became a National Natural Landmark in 1972. There, Hemlock trees over 100 feet tall and hundreds of years old grow amidst tulip poplar, black gum, oak, and basswood trees.A small stream

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Julia Barlow Pratt

Julia Barlow Platt, Embryotic Cells, and California Politics

Meet Julia Barlow Platt (1857-1935), who in her 70s was elected as the first female mayor of Pacific Grove, California. She spent her late years galvanizing efforts to create a nature preserve on Monterey Bay, which is still one of the most lovely areas on California’s northern coast. Behind these achievements, however, is a story

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John R. Baylor

Baylor Canyon and John R. Baylor

This is John R. Baylor, a politician and military leader for the Confederate forces during the American Civil War. In 1861 he brought his troops from Texas into New Mexico to threaten Union forces near Las Cruces. Although they were outnumbered 500 Union soldiers to 200 Confederates, Baylor’s men were victorious.The path towards the Union

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Ecological Diversity of the Chiuahuan Desert

The landscape shown here is part of a vast and ecologically diverse ecoregion known as the Chiuahuan Desert. In the second image, a map shows its expansive territory, which encompasses about 250,000 square miles (647,500 km), making it the largest desert in North America.An unusual feature of this very young ecoregion (only about 9,000 years

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Tortugas Mountains

Tortugas Mountains and Piro Indian Festivals

Here is the Tortugas Mountain in southern New Mexico, endpoint of a three-day religious festival among the American Indians of the region held from December 10-12 each year.The festival celebrates the Virgin Mary, but also the culture of the peoples from this area who trace some of their heritage to a mission called Señora de

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Rio Grande

The “Weeping Woman” of the Rio Grande

The Rio Grande is just a dry riverbed this time of year at La Llorona park in Las Cruces, New Mexico.The area is named for an old Latinx legend common throughout Mexico and the American Southwest: La Llorona or “the Weeping Woman” usually tells of a beautiful woman with dark flowing hair wearing white robes

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Organ Mountain Ruins

The Organ Mountain Ruins of New Mexico

These ruins stand in solitude at the western foothills of New Mexico’s Organ Mountain range. Constructed in the late 1800s, they were part of a resort complex called “Van Patten’s Mountain Camp.” Even though it takes a while for hikers to pack into this area now, the buildings were isolated even when they were in

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New Mexico’s Modoc Mine

The rocky vistas shown here include volcanic andesite and sedimentary limestone, deposited over two and a half million years ago. But it wasn’t until after the 1850s, when American Indians in the region had been mostly conquered, that the isolated and rugged terrain became interesting to investors for mining purposes.The image shown here includes the

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Diphtheria and Dogs

The “Great Race of Mercy” for a Diphtheria Cure in Alaska

Today on December 14, 2020, a critical care nurse in New York became the first American to receive the COVID vaccine. This begins a period of highly anticipated vaccine delivery in the weeks to come. The photo here harkens to another moment in American history when folks waited with bated breath for a cure for

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Mistletoe Plant

Christmas History – The Mistletoe Plant

Today’s Christmas-themed post is all about the mistletoe plant, which had special importance in pagan European times before it became attached to Christian holiday traditions.Mistletoe is a super fascinating species that evolved from sandalwood, and is a type of parasitic plant. It uses its host plant’s water and nutrients, but can also photosynthesize energy from

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S&S Railway Corridor

Schuylkill and Susquehanna Railway Corridor

The Schuylkill and Susquehanna railway corridor formed the basis of one of America’s first rails-to-trails, and exists today as a nearly 20-mile path across isolated woodlands. The history of this valley, which lies adjacent to the Appalachian Trail, is a microcosm for much of the coal country of central Pennsylvania.In the 1740’s, Moravian Christian missionaries

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Mandrake

The Mandrake Root in European History

Harry Potter fans might recognize this plant from a seveth-century Italian herbal: it is a mandrake, or in Latin, “mandragora.” So named because Ancient and Medieval Europeans thought the way that its root resembles a man (or a woman, see illustration three) was just so extra, the mandrake gained a reputation for producing effects far

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De Materia Medica

Medicinally Used Plants in “De Materia Medica”

Just how important is a single book? In the case of the one featured here, _De materia medica_, the answer is 1500 years: that’s how long this text dominated the genre of applied medical textbooks. The most important description of plants and their uses for over a millennia and a half, it wasn’t rediscovered in

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South-Central Pennsylvania’s Mount Holly Marsh Preserve

Mount Holly Marsh Preserve is made up of 900 acres of bog lands around the base of South Mountain in south-central Pennsylvania. Today it is managed by the Nature Conservancy and the Holly Gap Committee — thanks to these groups, this important wilderness area was purchased in 1992. Today hikers and fishers can enjoy many

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Dolly Sods Outlook

Allegheny Front at the Dolly Sods Wilderness Area

This eastern-facing plateau at the Dolly Sods Wilderness Area in West Virginia is part of the Allegheny Front, a ridge-line of mountains that make up the eastern Continental Divide. To the west, water flows into the Mississippi River. To the east, it flows into Chesapeake Bay — and it almost looks like you can see

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Dolly Sods Wilderness

West Virginia’s Dolly Sods Wilderness Area

The Dolly Sods Wilderness Area in West Virginia is almost 72 square kilometers of protected lands. The ecology is unique — much of the area is between 2,000 and 4,000-foot elevation, and is filled with high-altitude marshy bogs, red spruce forests, and windswept boulders. But it did not look like this 100 years ago.In the

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Carl Bosch and the Haber-Bosch Fertilization Process

It fits that the grave of Carl Bosch in Heidelberg is overgrown with the competing green textures of the jumble of plants collecting at his tombstone. Plants were something Bosch understood more than most people — and that, combined with his engineering skills, got him the Nobel Prize in Chemistry in 1931. A just reward,

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