Delegates to the annual international climate meeting held by the U.N. are struggling to forge a unified approach to slowing climate change. Meanwhile, emissions of greenhouse gases keep rising.
Researchers including one from from Colorado's Climate Accountability Institute find that 90 fossil fuel companies have directly contributed to sea level rise and warming temperatures.
Scientists say the ozone hole over Antarctica is no longer growing, the expectation is that it will take decades to recover.
August was cooler than usual in Colorado. And no, that doesn’t break with climate change.
The National Climate Assessment is mandated by Congress every four years; it was written by scientists from 13 federal agencies.
A first of its kind report for the Colorado Health Institute looks at the connection between health and climate change.
"Nuclear winter is a hazard. I'm trying to tell people they need to do something about it," CU Boulder atmospheric scientist Brian Toon tells Colorado Matters.
“We will reduce greenhouse gas emissions statewide by 2025, by more than 26 percent below 2005 levels,” Gov. John Hickenlooper said.
Aspen set the 100 percent renewable goal in 2006 as part of its Canary Initiative, a climate action plan aimed at reducing the city’s carbon footprint 30 percent by 2020.
“Most of us never thought we would see a time when basic monitoring would be something that could be on the table in terms of cuts,” said INSTAAR director Jim White.