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Version: 3CC0 1.0 (public domain)

Version: 3CC0 1.0 (public domain)
Every June since 1999, paddlers travel the Schuylkill River from Schuylkill Haven to Philadelphia. The 2017 Sojourn drew 220 people from 12 states under the theme "I Protect the Schuylkill River."
Version: 2CC0 1.0 (public domain)
There is no treatment for an HPV infection itself — only for what it causes. Nearly every sexually active person gets it, the immune system clears most of it, and the danger is the high-risk infection that quietly persists at the cervix for years. Screening and vaccination are the entire defence.
Version: 2CC0 1.0 (public domain)
Autism prevalence among 8-year-olds was 1 in 59 in 2014. The figure most often missed: 44% of the children identified had an IQ above 85. And while 85% had a developmental concern recorded by 36 months, only 42% had been comprehensively evaluated by then.
Version: 2CC0 1.0 (public domain)

Version: 2CC0 1.0 (public domain)
In 2014 Bienville Parish withdrew about 13 million gallons of water a day, almost all groundwater and mostly for industry. Its aquifers, water levels, streams and water quality, from a USGS fact sheet.
Version: 1CC0 1.0 (public domain)
When gale-force winds start blowing and torrential rains raise water levels, you need to be ready. Power outages mean refrigerated food and medicine supplies may spoil. Floods may contaminate tap water and emergency supplies not stored properly with sewage, chemicals, heavy metals, pathogenic microo
Version: 2CC0 1.0 (public domain)
Peripheral arterial disease narrows the arteries to the limbs, usually the legs, and can lead to amputation. Its main cause and risk factors, the signs to watch for, and how it is treated.
Version: 1CC0 1.0 (public domain)
The [asteroid hit]( at an estimated speed of 20 kilometers per second (more than 58 times the speed of sound) at a relatively steep angle of between 45 and 60 degrees to the Earth’s surface. [The impact produced as much explosive energy as 100 teratons of TNT]( 4.5 billion times the explosive power
Version: 2CC0 1.0 (public domain)
Estrogen, alone or with progesterone, can ease hot flashes, night sweats and vaginal dryness and help protect against osteoporosis — but it can raise the risk of clots, stroke and breast cancer.
Version: 1CC0 1.0 (public domain)
Family forests provide many valuable goods and services that extend beyond their boundaries, including clean air and water, wildlife habitat, and carbon sequestration.
Version: 2CC0 1.0 (public domain)

Version: 2CC0 1.0 (public domain)

Version: 3CC0 1.0 (public domain)
In 1916 the artist Earl Howell Reed described the Indiana Dunes' crow multitudes — their roosting flights, sentinels and a pet crow called Billy. Crows are far fewer there today.
Version: 2CC0 1.0 (public domain)
In 2018 a King County, Washington, man was found to carry Klebsiella pneumoniae with three carbapenemase genes, resistant to 15 antibiotics, after urologic procedures in India and at home. How public health responded.
Version: 2CC0 1.0 (public domain)
In respiratory failure the blood has too little oxygen, too much carbon dioxide, or both. What causes it, the warning signs, how it is diagnosed, and treatments from oxygen and ventilators to rehabilitation.
















