You are browsing the archive for climate Archives - AGU Blogosphere.
15 February 2017
Surfers aren’t the only people trying to catch big waves. Using decades of global climate data generated at a spatial resolution of about 25 square kilometers (10 square miles), researchers were able to capture the formation of tropical cyclones and the extreme waves that they generate. Those same models, when run at resolutions of about 100 kilometers (60 miles), missed the tropical cyclones and the big waves up to 30 meters (100 feet) high.
12 February 2017
Denver reached 80 degrees Friday, smashing their record high for the 10th of February by 9 degrees, but wait, there’s more. They also saw their hottest February temperature on record, and records there go back to 1872! Grant was President of the U.S. when temperature records began in Denver. Colorado Springs, and Pueblo, also saw their hottest February day on record. The heat shifted south into Oklahoma today and Oklahoma City smashed their …
6 February 2017
The Daily Mail says that NOAA is manipulating the climate data! No, really? That’s certainly a first for them. NOT. Here is a graph they published as proof. Now, there is just one tiny problem, well actually, there are a bunch of them. The Hadley (UK) data is based on an average from 1961-1990 while the NOAA data they plotted is based on 1901-2000. The baseline choice does not make …
25 January 2017
Late spring and early summer is when the air quality is generally good across most of the United States. But newly published research details how a common springtime weather pattern and pollution transported from Asia often conspire to create unhealthy ozone levels for the desert southwest. The new study adds to a growing body of work that explores how ozone can occasionally push some areas of the desert southwest above federal air quality standards.
24 January 2017
In a new study, researchers suggest early Mars may have been warmed intermittently by a powerful greenhouse effect. They found interactions between methane, carbon dioxide and hydrogen in the early Martian atmosphere may have created warm periods when the planet could support liquid water on the surface.
21 January 2017
Spotted on Social Media (h/t to Assoc. Professor of Meteorology Victor Gensisi at College of Dupage, IL). I noticed this part “nor do the data indicate that the dominant force behind climate change is human-induced greenhouse gases”. WRONG. Undeniably wrong. Instead of wishful thinking from a rightwing think tank, how about some real data from scientific experts. People who can back up their writing with data and physics. Science always wins in the …
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?