Posted on January 26, 2015 by Bob Berwyn
Will global warming intensify extreme weather swings?
How will climate change affect ENSO?
FRISCO — Global warming could increase the frequency of extreme La Niña events in the Pacific Ocean, with more droughts in southwestern United States, floods in the western Pacific regions and increased Atlantic hurricane activity.
The international study, published in Nature Climate Change, used advanced modeling to show how increased land-area heating, combined with more frequent El Niños, will feed a cycle of extreme La Niñas. Continue reading
Filed under: climate and weather, Drought, El Niño, extreme weather, global warming | Tagged: climate science, El Nino, ENSO, extreme weather, global warming, La Niña | 1 Comment »
Posted on January 16, 2015 by Bob Berwyn
More heat ahead …
Record warmth around the world in 2014.
FRISCO — 2014 ended up as the warmest year ever for planet Earth, but just by a whisker, edging out 2005 and 2010 by 0.07 degrees Fahrenheit. The new temperature record was driven by persistent warmth across the world’s oceans, which have been absorbing most of the heat trapped by greenhouse gas pollutants.
Heat absorbed in the oceans will fuel global warming for years to come, said Tom Karl, directory of NOAA’s National Climatic Data Center, which generates the monthly and annual climate reports for the U.S. and the world. With greenhouse gas emissions still rising, Karl said more record-warm years are ahead. Read the full report here. Continue reading
Filed under: climate and weather, Environment, extreme weather, global warming, Greenland, ocean acidification | Tagged: 2014 global temperature, climate change, global warming, hottest year on record | 3 Comments »
Posted on January 8, 2015 by Bob Berwyn
2014 ends with record warmth in West
Record heat in the West, but coolish in the East.
Every state warmer than average in Dec. 2014.
FRISCO — All 50 U.S. states were warmer than average in December 2014, with the average reading across the contiguous 48 states. At 4.5 degrees Fahrenheit above the 20th century average, it will go into the record books as the second-warmest December on record, after 1939, according the latest state of the climate report from NOAA’s National Climatic Data Center.
Nine states across the West, Southern Plains, and Northeast reported December readings ranking in the top 10, but no states were record warm during the month. Continue reading
Filed under: climate and weather, climate change, Environment, extreme weather, global warming | Tagged: 2014 climate report, December 2014 climate statistics, global warming climate change, state of the climate report | Leave a comment »
Posted on January 4, 2015 by Bob Berwyn
Annual conference includes all-star climate science speakers
November’s above-average temperatures kept Earth on track to record its warmest year on record. Learn more from this year’s Glen Gerberg Weather and Cimate Summit.
FRISCO — This year’s Glen Gerberg Weather and Climate Summit in Breckenridge once again features some notable climate scientists, including James Balog, who has documented the disappearance of Arctic sea ice, and Dr. Richard Knabb, director of the National Hurricane Center. As in past years, the sessions will be webcast live, enabling the general public to listen and even to ask questions online. Continue reading
Filed under: Arctic, climate and weather, climate change, Environment, extreme weather, global warming | Tagged: climate change, climate communications, climate science, Glen Gerberg weather and climate summit, weather | Leave a comment »
Posted on January 2, 2015 by Bob Berwyn
Tornado numbers low for third year in a row.
Scientists say they can’t pinpoint and long-term trends
FRISCO — The number of tornadoes in the U.S. was below average for the third year in a row, NOAA scientists said last week. A preliminary count shows there were about 800 tornadoes in 2014, the lowest number since 1982 and about 20 percent below the long term average. Continue reading
Filed under: climate and weather, extreme weather | Tagged: 2014 tornadoes, climate, extreme weather, tornadoes | 1 Comment »
Posted on December 19, 2014 by Bob Berwyn
High water at the mouth of the Mississippi River, near Venice, Louisiana. bberwyn photo.
Study eyes flood ‘tipping’ points
FRISCO — Rising sea levels will subject many coastal areas in the U.S. to frequent flooding by the middle of the century, according to a new NOAA study aimed at identifying flood “tipping points.” By 2050, a majority of U.S. coastal areas are likely to be threatened by 30 or more days of flooding each year the study concluded.
The research was led by NOAA scientists William Sweet and Joseph Park and published this week in the American Geophysical Union’s online peer-reviewed journal Earth’s Future. Continue reading
Filed under: climate and weather, extreme weather, global warming | Tagged: climate change, flooding, global warming, global warming tipping points, sea level rise | Leave a comment »
Posted on December 17, 2014 by Bob Berwyn
A NASA Blue Marble view of Earth, with Greenland parts of the Arctic visible top-center.
Arctic warming twice as fast as rest of the planet
FRISCO — Parts of the Arctic Ocean are warming by nearly 1 degree Fahrenheit every decade, and overall, Arctic temperatures are rising twice as fast the global average, climate scientists said today as they released results of an annual Arctic Report Card.
The report documents increasing air and sea surface temperatures, declining reflectivity at the surface of the Greenland ice sheet, which reached a new record low last summer. And there is ongoing shrinkage of spring snow cover on land and summer ice on the ocean.
The warming Arctic atmosphere was strongly connected to lower latitudes in early 2014 causing cold air outbreaks into the eastern USA and warm air intrusions into Alaska and northern Europe. Continue reading
Filed under: Arctic, climate and weather, Environment, extreme weather, global warming, Greenland | Tagged: 2014 Arctic Report Card, Arctic amplification, global warming, Sea ice | 2 Comments »