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17 January 2017
Climate scientists have now reconstructed how tiny droplets of sulfuric acid formed high up in the air after a large asteroid impact 66 million years ago. The new research shows the sulfuric acid cooled Earth’s climate for years to come.
13 January 2017
There are about 33 million cattle in Mexico, where a few scientists are experimenting to concoct a cow diet that will reduce methane emissions.
5 January 2017
Research has shown that carbon emission standards for the power sector benefit human health. But new research shows they would also benefit crops and trees.
21 December 2016
There are few gifts better than books, so here’s a list of great science books for ages 13 and up, along with a brand new entry that is rapidly becoming a best seller. First, is Carl Sagan’s 1997 classic The Demon Haunted World. I frequently quote from it, and every true science geek will tell you they love this book. If it were up to me, it would be required …
20 December 2016
Event types from 2015 include tropical cyclones, extreme sunshine, nuisance tidal flooding, snowpack
drought, forest fires, and Arctic sea ice extent in addition to heat, cold, precipitation, and drought.
9 November 2016
Guy Walton is the former lead forecaster for the Weather Channel, but most of us meteorologists know him these days as the person who keeps track of the “ratio of record highs vs record lows”. As the planet warms, we should expect to see more record highs and fewer record lows, and the data is indeed showing just that. It’s actually impossible to miss, because the ratio itself is in …
2 November 2016
The United States and the European Union take markedly different approaches to vehicle emissions controls, and the evidence is in the air, according to a new study. The work shows distinct differences in vehicle pollution trends in U.S. megacities, where regulations tend to target air quality, and European ones, where the target tends to be greenhouse gases.
19 October 2016
It was by a razor thin margin over 2015, but this September was the hottest on record based on NASA GISS data. NOAA does a separate analysis and puts it as number two after last Sept. NOAA did report that the land temps. in Sept. were the hottest on record, beating last year. Here is the stunning statistic: September 2016 was the 381st consecutive month with above average global temperatures. …
16 September 2016
This press release from the National Snow and Ice Data Center this evening: BOULDER, Colo.—The Arctic’s ice cover appears to have reached its minimum extent on September 10, 2016, according to scientists at the National Snow and Ice Data Center (NSIDC). Arctic sea ice extent on that day stood at 4.14 million square kilometers (1.60 million square miles), statistically tied at second lowest in the satellite record with the 2007 …
13 September 2016
NASA announced Tuesday that August 2016 was the hottest August ever measured on Earth, with records going back to 1880. It also ties July for the hottest month ever measured. Much of the Northeast U.S. also had the hottest August on record as well. It is now virtually certain that 2016 will pass 2015 as the hottest year on record. Notice in the image below how much hotter 2015 was …
6 September 2016
The cities in yellow (From NE Regional Climate Center) had the hottest August average temp. on record. It was also very dry in some areas, with well below average rainfall. Washington missed the record by 0.1 degrees F. Across the country, August was the 21st consecutive month with more record highs than record lows! This itself is a new record. Meteorologist Guy Walton keeps track of this, and in …
18 August 2016
From NOAA: For the 15th consecutive month, the global land and ocean temperature departure from average was the highest since global temperature records began in 1880. This marks the longest such streak in NOAA’s 137 years of record keeping. The July 2016 combined average temperature over global land and ocean surfaces was 0.87°C (1.57°F) above the 20th century average, besting the previous July record set in 2015 by 0.06°C (0.11°F). …
2 August 2016
Every year at this time the Bulletin of the American Meteorological Society publishes the State of the Climate Report. While it will be in the AMS Bulletin that all AMS members receive, the entire report is freely available to the public here: https://www.ametsoc.org/ams/index.cfm/publications/bulletin-of-the-american-meteorological-society-bams/state-of-the-climate/ From the report: The 2015 global surface temperature was 0.42oC-0.46oC (0.76°–0.83°F) above the 1980-2010 average, depending on the dataset. For the troposphere, 2015 ranked between first and …
11 July 2016
The phrase “tipping point” passed its own tipping point and caught fire after author Malcolm Gladwell’s so-named 2000 book. It’s now frequently used in discussions about climate change, but what are “climate tipping points”? And what do they mean for society and the economy?
27 June 2016
Even if countries adhere to the Paris climate agreement hammered out last fall, capping global warming at 2 degrees Celsius (4 degrees Fahrenheit) would likely require net zero greenhouse gas emissions by 2085 and substantial negative emissions over the long term, according to an in-depth analysis by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado.
17 June 2016
“This is a major source of climate change that has not been looked at,” said John Murray of The Open University in Milton Keynes, England and lead author of the new study accepted for publication in Earth’s Future, a journal of the American Geophysical Union. “Any kind of energy consumption generates heat” Murray said.
20 April 2016
NOAA and NASA both have released the global temp. data and not only did it break a record for the 11th consecutive month (Something that has never happened before), it also broke the previous March record by a record amount. NASA reported the global March temp. was 1.28C above the average from 1950-1980. Keep in mind that there’s a strong scientific consensus that any rise above 2 degrees C in …
29 March 2016
An interesting paper came out today, and it has we meteorologists talking. It’s about using sea water temperature patterns in the Pacific to forecast heat waves in the eastern portions of North America. Researchers found that when a certain pattern of water temperatures appeared, there would often be unusually hot weather in the Eastern U.S. about 40-50 days later. A statistical analysis using this method over the years 1982-2013 showed …
8 March 2016
From NOAA NCEI: The December–February average temperature for the contiguous U.S. was 36.8°F, 4.6°F above the 20th century average, surpassing the previous record of 36.5°F set in 1999/2000. The exceptionally warm December boosted the contiguous U.S. winter temperature. The February temperature for the contiguous U.S. was 39.5°F, 5.7°F above the 20th century average, ranking as the seventh warmest on record and warmest since 2000. Preliminary indications are that globally, February …
6 March 2016
Deke Arndt at NOAA is one of the smartest climatologists around, and I always look forward to hearing him talk, because he takes data and makes you see it in a way you did not immediately think about. By the way, for those of you who are still in school, some sage advice: always hang around with people smarter than you. You’ll never learn anything by being the smartest person in …