climate change

Caroline Simms and Kelli Hess write, "During the Western Montana Fair and River City Roots Fest, an estimated 70% of waste produced by record-setting attendance was diverted from the landfill."

Young activists in Oregon involved in a long-running lawsuit against the U.S. government over climate inaction won’t have their case helped by a recent win for Montana youth, the U.S. Department of Justice said.

If Missoula ever exceeded the national standard again and it could be shown that vehicles accounted for more than 40% of the carbon monoxide produced, Missoula would go back to using oxygenated fuel.

Abby Huseth writes, "Every year, as fall signals its arrival with shorter days and cooler temperatures, I breathe sighs of relief – I can say goodbye to worries about wildfire smoke and 100 F days. And this year, autumn seems right on time for Missoula."

A plan to protect threatened and endangered species in Oregon’s Western state forests by limiting some logging will move forward for now, despite a recent attempt to make last-minute changes that could have further delayed it.

A coalition of environmentalist groups sued Utah on Wednesday to force the state to limit the upstream diversion of water that otherwise would flow into the Great Salt Lake, which they say faces a complete ecosystem collapse.

A tropical weather system called El Niño is beginning its march up the coast of Oregon, bringing with it a warmer winter and inescapable heat for some marine life.

The planet saw its warmest three-month period on record after the unruly El Niño weather pattern emerged earlier this year and injected even more heat into the warming planet's atmosphere, the European Union's climate agency said Wednesday.

Dominick DellaSala writes, "Congress should pass this bold act to protect the five-state region critical to iconic grizzlies and wolves and the region’s future."

A warming climate can exacerbate barriers native mammals face trying to survive in the growing urbanization of cities, according to a paper published Monday in Nature Ecology & Evolution.