"After a forest burns, the resulting erosion can contaminate drinking water supplies for up to a decade."

"Police in western Canada have arrested more than 270 people as a conflict over old growth logging in British Columbia’s ancient rainforests continues to grow."

"Brazilian Environment Minister Ricardo Salles announced his resignation Wednesday, giving up his post amid sharp criticism of his tenure and two investigations into his actions involving allegedly illegal timber operations."

"Most U.S. cities have tree-planting programs, but not all urban tree canopies are created equal, according to a new analysis from American Forests."

"A wildfire in northern Arizona crept closer to the region’s largest city Tuesday, threatening to force people from their homes. The lightning-caused fire near Flagstaff was one of dozens that have scorched large swaths of the U.S. West and kept firefighters busy as they hold out hope that the monsoon season will deliver some significant rain."

"The record-breaking heat wave roasting the West is expanding its grip on Thursday, with the focus of the triple-digit heat shifting into California — particularly the Central Valley and desert regions."

"A heatwave already punishing parts of the U.S. Southwest on Monday was expected to move into California this week, prompting the forecasters to warn of health and fire dangers."

"Earthworms are often seen as a welcome presence in gardens, and even on fishing hooks. But in the Northeast, experts say invasive "crazy worms" from Asia are creating havoc in forests — and they say the unusual worms are a danger to animals and plants, and especially to sugar maple trees."