Fish die-offs spread, winter retreats and ocean currents are changing
By Bob Berwyn
My recent reporting for InsideClimate News includes coverage of the massive Yellowstone fish kill, something that anglers and fisheries managers in Colorado also should probably be prepared for as rivers warm to a level that is conducive to the spread of parasites. Read the details here: Fish Deaths in Montana’s Yellowstone River Tied to Warming Waters.
I also explored how Austria is preparing for climate change. The mountainous country has seen its average temperature increase at nearly twice the global average in the past century, with huge implications for water supplies, agriculture, urban heatwaves and tourism. But rather than argue about the causes, Austrians are actively trying to figure out how to make their society and ecosystems more resilient to the changes ahead. Read here: Austria Braces for Winter’s Retreat.
There’s other research showing a significant shift in most key ocean currents that run along the edges of continents. Those currents are key drivers of weather systems and the changes documented by scientists suggest that the currents are strengthening and transporting more heat, which is affecting weather in densely populated areas. China and Japan, in particular, can expect more devastating storms and typhoons in the future: In Warming Oceans, Stronger Currents Releasing Heat in Bigger Storms.
It seems pretty clear that we have to try and prevent runaway climate change and the way to do that is to stop spewing heat-trapping pollution into the sky. We need to bite the bullet and figure out how to decarbonize our energy systems and economy in the most rational way, which means making plans and decisions now, not in 20 years. Every additional dollar used to subsidize fossil fuels, or to build fossil fuel infrastructure, is another nail in our own coffin. Offshore wind power is still grossly under-utilized in the U.S. but that is starting to change.
Scientists say Paris deal is not nearly enough to curb harmful global warming
By Bob Berwyn
The Paris climate agreement will likely be triggered into force within the next few weeks, which marks the beginning — not the end — of an intense effort to try and cap global warming before the planet is overwhelmed by heatwaves, droughts and super storms.
Civic groups brainstorm green policies at Vienna meeting
By Bob Berwyn
European environmental leaders this week called on the EU adopt an innovative mindset for dealing with climate and energy issues. Europe stands to gain from adopting progressive policies that create economic opportunities for businesses and improve life for citizens.
What’s left of the glaciers around the Grossglockner, Austria’s highest peak.
Mondsee, one of the Salzkammergut lakes, from the highway.
Grosses Wiesbachhorn (3,564 M) from the Grossglocknerstrasse.
Austrian high country.
Our reporting for the global warming in the Alps project took us to the high country around Austria’s highest peak, the Grossglockner, late last week, where we saw firsthand how the once mighty glaciers have dwindled to remnant shards of ice in the past few decades, with uncertain consequences for ecosystems below. The mountain valleys are still lush green in the Austrian high country, but there are great concerns that the meltdown could affect aquatic life in the streams below the glaciers, not to mention hydropower production, one of Austria’s main sources of renewable energy.
Every state was warmer than average for the summer
This year’s meteorological summer in the contiguous U.S. (June-August) will go down in the climate annals as the fifth-warmest on record, at 2.8 degrees Fahrenheit above the 20th century average.
The year-to-date is the third-warmest on record, with Alaska on pace for a record-warm year after eight months, according to NOAA’s monthly State of the Climate summary, available here. August was the 17-warmest on record, with record warmth in the Northeast, and below average temperatures in the Southwest.
After record rain storms in parts of the Midwest and along the Gulf Coast, August ended up as the second wettest on record.
For the summer, according to NOAA, every state across the contiguous U.S., had a statewide temperature that was above average. Twenty-nine states across the West and in the East were much warmer than average for the summer. California, Connecticut and Rhode Island each had their warmest summer on record.
Alaska observed its second warmest summer in its 92-year record at 53.6°F, 3.0°F above average. Only the summer of 2004 was warmer with a statewide temperature value of 55.9°F. Several locations across the state were record warm including Anchorage, Kenai, King Salmon and Yakutat.
Commercially valuable tree stands take hit in Pacific Northwest
Global warming may be a factor in the spread of a fungus affecting valuable Douglas fir forests in the Pacific Northwest. Needle cast disease has recently spread across 590,000 acres in Oregon, quadrupling since the start of surveys in 1996. The annual economic loss has been estimated at $128 million.
“The correlation between disease severity and climate factors, such as spring moisture and warm winter temperatures, raises the question of a link between disease expansion and climate change,” said researcher Gabriela Ritokova. “Those factors, in combination with lots of Douglas fir and with large springtime fungal spore production, have us where we are now.” Continue reading “Climate change may be factor in spread of tree fungus”→
New study documents population declines in Great Basin
U.S. Geological Survey scientists have filled in another piece in the pika puzzle, finding that changes in distribution of populations of the tiny mammals are mainly influenced by climatic factors. The new study, published in The Journal of Mammalogy, helps show how global warming will affect the species.
Several previous research efforts have been inconclusive, and one study from Colorado suggests that pikas are holding their own in the highest reaches of the central and southern Rocky Mountains. But the new study, conducted in 2014 and 2015 at 910 sites, showed widespread reduction in pika range in three mountainous regions including the Great Basin, southern Utah and northeastern California.