How lichen hold the secret to a breath of fresh air

Scientists at the UK Centre for Ecology and Hydrology (UKCEH) have developed an app for researchers and keen lichen spotters ...
Star Tribune

In the boreal forests of northern Minnesota, the trees wear beards

With wispy tufts that drape trees like haunted-house cobwebs, old man’s beard lichen can be an unexpected sight in northern Minnesota forests. It resembles a petite version of Spanish moss seen on ...