Posted on September 17, 2015 by Bob Berwyn
Colorado recorded the greatest increase in average maximum temperatures — between .7 and .9 degrees — from the old normals, compiled between 1971 and 2000, and the new normals, which are based on temperature readings between 1981 and 2010. On average across the U.S., the new average temperatures are about .5 degrees warmer.
Multiple state agencies will eye adaptation, mitigation strategies
Colorado’s new climate plan calls for an all-hands-on-deck approach, with various state agencies working together, and with the public, to address the potential impacts of rising temperatures.
Acknowledging that average temperatures in the state could rise by as much as 2.5 to 5 degrees Celsius in the next few decades, Gov. John Hickenlooper called on Colorado make preparations now.
“Colorado is facing a potential increase in both the number and severity of extreme weather events,” Hickenlooper said in a prepared statement. “We’ve seen what Mother Nature can do, and additional risks present a considerable set of challenges for the state, our residents, and our way of life. This comprehensive plan puts forth our commitment from the state and sets the groundwork for the collaboration needed to make sure Colorado is prepared.”
Filed under: climate and weather, Colorado, Drought, Environment, extreme weather, global warming | Tagged: climate change, Colorado climate plan, drought, extreme weather, global warming, Gov. John Hickenlooper, water | 2 Comments »
Posted on September 15, 2015 by Bob Berwyn
‘This is a new planet’
El Niño still strengthening in the Pacific.
LINZ — This year’s strong El Niño may be a climate wildcard, according to experts with the World Meteorological Organization, who said changes in the northern hemisphere’s climate may interact with El Niño in as-yet unknown ways.
“The last big El Niño was 1997-1998. The planet has changed a lot in 15 years,” said David Carlson, director of the WMO co-sponsored World Climate Research Programme. “We have had years of record Arctic sea ice minimum. We have lost a massive area of northern hemisphere snow cover, probably by more than 1 million square kilometers in the past 15 years. We are working on a different planet and we fully do not understand the new patterns emerging.”
He said the 2015 El Niño is unique because of the unprecedented combination of the Equatorial influence of El Niño, and the Arctic influence of low sea ice and snow cover in place at the same time.
“This is a new planet,” said David Carlson, director of the WMO co-sponsored World Climate Research Programme. The 2015 El Niño is the first to take place since the rapid melting of Arctic sea ice and snow cover, Carlson said. Continue reading
Filed under: Arctic, climate and weather, Drought, El Niño, extreme weather, global warming | Tagged: climate change, El Nino, extreme weather, global warming | 1 Comment »
Posted on September 1, 2015 by Bob Berwyn
High temperatures and a lack of rain spread serious drought conditions across Europe this summer.
Study tracks increase in extreme conditions
FRISCO — Scientists taking a close look at the last 50 years — the modern global warming era — found that droughts and heat waves are happening simultaneously much more frequently than in the past.
The climate experts at the University of California, Irvine analyzed data gathered from ground sensors and gauges since 1960 and crunched the numbers with a statistical model to track the upswing.
“Heat waves can kill people and crops while worsening air quality, and droughts exacerbate those serious impacts,” said senior author Amir AghaKouchak, assistant professor of civil & environmental engineering. “With these two extremes happening at the same time, the threat is far more significant.” Continue reading
Filed under: climate and weather, Drought, extreme weather, global warming | Tagged: air quality, climate change, drought, extreme weather, health, heatwaves | 1 Comment »
Posted on August 22, 2015 by Bob Berwyn
June and July brought record high temperatures and big rainfall deficits in many parts of the European Union
Drought conditions were widespread across Europe during June and July.
By Bob Berwyn
FRISCO — The western U.S. isn’t the only part of the world experiencing severe drought this year. Across much of central Europe, extremely warm temperatures and lack of rainfall have combined to create the worst drought conditions since 2003.
Hardest hit have been France, Benelux, Germany, Hungary, the Czech Republic, northern Italy and northern Spain, according to new information released by the European Drought Observatory. The report includes data from satellite imagery showing that the areas with the largest rainfall deficits also recorded exceptionally high maximum daily temperatures, in some cases reaching record values. Continue reading
Filed under: climate and weather, Drought, extreme weather, global warming | Tagged: climate change, Europe, European drought, European drought observatory, European heat wave, European Joint Research Centre, extreme weather, global warming | Leave a comment »
Posted on July 14, 2015 by Bob Berwyn
Study tracks eastern Mediterranean climate trends
This image shows simulated precipitation (over 24 hours from 6 to 7 July 2012) of a model run using observed sea surface temperature (a) and (b) using a colder SST representative of the early 1980s). The black cross marks the town of Krymsk, the thin black lines are height contours with a distance of 150 metres. Graphic courtesy GEOMAR Helmholtz Centre.
FRISCO — Rapidly warming sea surface temperatures are resulting in more extreme coastal rainstorms, Russian and German researchers said after analyzing climate data from the eastern Mediterranean and the Black Sea.
The impetus for the study was a deadly 2012 flash flood in the Russian city of Krymsk, near the Black Sea coast that killed 172 people. The Black Sea and eastern Mediterranean have warmed by about 2 degrees Celsius since the early 1980s.
The study was led led by scientists at the GEOMAR Helmholtz Centre for Ocean Research in Kiel, Germany, and published in the international journal Nature Geoscience. Continue reading
Filed under: climate and weather, climate change, extreme weather, flooding, global warming | Tagged: climate change, extreme weather, global warming, Krymsk, Sochi | Leave a comment »
Posted on July 9, 2015 by Bob Berwyn
A new study documents a distinct increase in extreme rainfall events linked with global warming.
Southeast Asia sees biggest increase in dangerous rainstorms
FRISCO —There’s clear evidence that global warming is causing more frequent record-breaking rainstorms, according to scientists with the Potsdam Institute for Climate Impact Research.
The upward trend in extreme rainfall events has been striking in the last 30 years, and particularly noticeable in Southeast Asia, the researchers said in a new study, explaining that the spike lies outside the range of natural variability.
The worldwide increase is consistent with rising global temperatures, which are caused by greenhouse-gas emissions from burning fossil fuels, the scientists said. Continue reading
Filed under: climate and weather, extreme weather, global warming | Tagged: climate change, Environment, extreme weather, flooding, global warming, Potsdam Institute for Climate Impact Research, record rainfall | Leave a comment »