How will global warming affect Colorado River flows?

Water woes ahead for the Southwest

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The Colorado River will be hit hard by climate change. @bberwyn photo.

Even if precipitation stays the same or increases slightly in the next few decades, Colorado River flows are likely to dwindle due to increasing temperatures in the West. The projected warming in the 21st century could reduce flows by half a million acre feet per year, according to a new study to be published in the AGU journal Water Resources Research. Continue reading “How will global warming affect Colorado River flows?”

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January 2017 climate change hot spots include the Arctic, Australia and South America

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January 2017 was ‘only” the third-warmest January on record according to NOAA, and the second-warmest, according to the EU Climate Change Centre.

Staff Report

Along with recording the third-highest global average January temperature, scientists with the World Meteorological Organization have been tracking the Polar equivalent of heatwaves, as strong Atlantic storms driving temperatures in the Arctic to near freezing, at times 50 degrees Fahrenheit above the seasonal average.

“Temperatures in the Arctic are quite remarkable and very alarming,” said World Climate Research Programme Director David Carlson. “The rate of change in the Arctic and resulting shifts in wider atmospheric circulation patterns, which affect weather in other parts of the world, are pushing climate science to its limits.” Continue reading “January 2017 climate change hot spots include the Arctic, Australia and South America”

Sunday set: Environmental journeys

Seeking knowledge …


I’ve been reporting on the environment for 21 years, so it’s not surprising that, even when I’m traveling on vacation, I tend to see nearly everything through a certain prism. That may be a blessing and a curse at the same time. It might be nice, every now and then, to completely tune out from the world’s problems and just live hedonistically. On the other hand, I feel like I can really connect with the people and places I’m seeing by understanding them in an environmental context. And in reality, I don’t really separate work and play all that much anymore. This past summer’s trek through the Austrian Alps to learn about climate change and sustainable mountain agriculture was a wonderful experience. Being a journalist gives me an excuse to exercise my curiosity. You can read about the environment and culture of the Austrian Alms here, and learn more about melting Arctic ice may affect you in this story

Arctic warmup speeds Canada glacier meltdown

Between 2005 to 2015, surface melt off ice caps and glaciers of the Queen Elizabeth Islands grew from an average of three gigatons to 30 gigatons

The Canadian Rockies near Kelowna, partially shrouded by pop-up clouds and haze.
Canadian glaciers are melting and have become a significant factor in global sea level rise. @bberwyn photo

Staff Report

The Greenland Ice Sheet isn’t the only place melting under a thickening blanket of heat-trapping greenhouse gases. A new study shows that Canada’s Arctic glaciers are also shedding ice at a rapidly increasing rate, making them a big factor in global sea level rise.

In a new study, glaciologists with the University of California, Irvine  said that, between 2005 to 2015, surface melt off ice caps and glaciers of the Queen Elizabeth Islands grew by 900 percent, from an average of three gigatons to 30 gigatons per year, according to findings published last week in the journal Environmental Research Letters. Continue reading “Arctic warmup speeds Canada glacier meltdown”

Study says ice sheets can crumble quickly

Slight ocean warming enough to tip the system

Scientists working in Greenland have been stunned by the speed at which ice is retreating.
Retreating ice shows dramatic climate change is under way in the Anthropocene. @bberwyn photo.

Staff Report

Just small increases in ocean temperatures during past geological epochs may have been enough to tip Northern Hemisphere ice sheets toward disintegration, even as air temperatures remained cold. That could spell trouble in the current era of climate warming, according to a new study led by University of Michigan researchers, who said their finding suggest that climate change could cause sea level to rise higher than most models predict. Continue reading “Study says ice sheets can crumble quickly”

EU warns of persistent air quality violations

5 countries now on notice face potential legal action

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Clouds and haze over Vienna, Austria, where particulate air pollution often exceeds standards set to protect human health. @bberwyn photo.

By Bob Berwyn

Five large EU countries are on warning after repeatedly failing to meet air pollution  standards for nitrogen oxide, a precursor to smog and a serious health risk in and of itself. If Member States fail to act within two months, the Commission may decide to take the matter to the Court of Justice of the EU.

Studies have shown that more than 400,000 people die prematurely each year due to poor air quality, while millions more suffer from respiratory and cardiovascular diseases. Persistently high levels of nitrogen dioxide (NO2) caused almost 70 000 premature deaths in Europe in 2013, which was almost three times the number of deaths by road traffic accidents in the same year.

Because of the persistent breaches, the European Commission this week sent final warning to  Germany, France, Spain, Italy and the United Kingdom, urging those countries to improve air quality and safeguard public health.

Continue reading “EU warns of persistent air quality violations”

Sunday set: France flashback

Summer daze …


Revisiting the Mediterranean coast of France and Italy in this set, and dreaming about summer days to come. Visit the Summit Voice Sunday Set archive, and check out our online gallery for more landscape and nature photography.