Moles, brown spots and growths on the skin are usually harmless â but not always. Anyone who has more than 100 moles is at greater risk for melanoma. The first signs can appear in one or more atypical moles. That's why it's so important to get to know your skin very well and to recognize any changes in the moles on your body.
The North Antelope Rochelle coal mine in the Powder River Basin of Wyoming, US, is currently the world's largest coal mine by reserve. The mine was estimated to contain more than 2.3 billion tonnes of recoverable coal as of December 2012. The mine is owned and operated by Peabody Energy.
The two largest coal mines in America announced massive layoffs Thursday morning. Peabody Energy cut 235 people at North Antelope Rochelle, or 15 percent of the workforce at Americaâs largest mine. Arch Coal said it was cutting 15 percent, or 230 people, at its Black Thunder Mine near Wright.