Colorado

Coffee drinkers shouldn’t their favorite beverage for granted, according to researchers with London’s Kew Royal Botanic Gardens. Global warming could lead to the extinction of wild Arabica coffee plants well before the end of the century.

As the Earth steadily warms, snowpacks are dwindling, especially in spring, leading to a longer growing season that enables trees to replace grasses and wildflowers by taking root in high mountain meadows.

The gradual rise in global temperatures may have long-term effects on biodiversity, but some species — including UK butterflies — may be more threatened by extreme weather events related to climate change. That could push some insects toward extinction.

Individuals and groups that are usually unified on environmental issues are divided over the city of Aspen's proposal for a hydropower plant in a battle that threatens to leave scars. Voters in the city of Aspen will cast ballots Tuesday on question 2C about the Castle Creek Hydroelectric Facility.

House Republicans on Wednesday released more information they said shows White House pressure in 2010 to approve federal loan guarantees for renewable-energy projects.

Should Boulder voters renew the Carbon Action Plan tax, the city plans to increase its focus on the commercial sector, which is responsible for roughly 60 percent of Boulder's energy use.

While some weather observations and climate models suggest specific global warming impacts to southern hemisphere weather patterns, a new study by the International Pacific Research Center, University of Hawaii at Manoa suggests rainfall will be affected by two competing factors.

A summer that started with a powerful and destructive Derecho across large parts of the eastern U.S. could end with a monster hybrid storm slamming the Mid-Atlantic and Northeast, putting a punctuation mark on six months of extraordinary record-breaking weather, including heat waves and drought.

Warming ocean temperatures during the coming decades could result in a significant shift in the distribution of phytoplankton, with as-yet unknown consequences for global climate, according to researchers with Michigan State University.

Why don’t we know more about what fracking is doing to your health and your environment? The answer to that question is complicated, a group of scientists known for their studies of the impacts of the oil and gas industry’s hydraulic fracturing said last week.