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19 July 2014
Tom Karl NOAA NCDC Director: “The climate is changing more rapidly in today’s world than at any time in modern civilization.” (to CBS News ) Entire report here. The ABSTRACT: and this one sidebar is particularly interesting:
8 July 2014
Livestock were the single largest source of methane gas emissions in the United States in 2004, releasing 70 percent more of the powerful greenhouse gas into the atmosphere than the oil and gas industry, according to a new study.
The new study based on satellite data from 2004 provides the clearest picture yet of methane emissions over the entire U.S. It shows human activities released more of the gas into the atmosphere than previously thought and the sources of these emissions could be much different than government estimates.
24 June 2014
Up to $106 billion worth of coastal homes and businesses in the U.S. are likely to be underwater by the year 2050 due to rising sea levels, and up to $507 billion in coastal property will likely be below sea level by 2100, according to a new report released today. The report is based in part on a new study on sea level rise in Earth’s Future, a journal of the American Geophysical Union.
19 June 2014
I am at the American Meteorological Society’s 42nd Conference on Broadcast Meteorology at Squaw Valley,Ca. We are just outside of Lake Tahoe, and I drove up from Las Vegas, through Death Valley and by Mammoth Lakes. The temperature ranged from 96 in Death Valley to 46 at Mammoth, and when i awoke here in Squaw Valley this morning it was 28 degrees! I thought I’d share some pics of …
11 June 2014
The 11 year solar cycle has apparently peaked, but it has been one of the weakest solar maxes of the modern era. The cycle is actually 22 years because at the end of 11 years, the sun’s magnetic field flips, and then flips again 11 years later. NASA has a video out today that explains more, and it’s important to note that some of the biggest solar storms can occur …
20 May 2014
What is hidden within and beneath Arctic ice? Why does winter matter? What is being irretrievably lost as the Arctic changes?
These are just some of the emerging questions that scientists are being challenged to answer about the rapidly changing Arctic in a new report, “The Arctic in the Anthropocene: Emerging Research Questions,” released last month by the National Research Council’s Committee on Emerging Research Questions.
9 May 2014
Just a quick post to say that THIS is a good read. Apparently there is a correlation between melt ponds in the spring, and the September sea ice extent. This makes sense,as you will see, when you read this post in Climate Lab Book, by Ed Hawkins.
15 April 2014
A group of researchers from Texas A & M University have a paper in the Proceedings of the National Academy of Sciences (PNAS) this week that is getting a lot of attention. Cloud droplets and rain drops need something to form on, and without dust and other aerosols in the atmosphere we would see a lot less of both. Sometimes though, the addition of particulates can cause tiny cloud droplets …
10 April 2014
I’ve written before here about how pervasive the myth is that science is divided about the reality of and the threat of man-made interference with our climate system. It truly is the number one science myth out there. Just by writing this post, I’ll get the usual comments with links to the usual rabid political sites (with unflattering pictures of Al Gore) telling me that thousands of scientists disagree, and …
3 April 2014
Research published this month in Geophysical Research Letters, a journal of the American Geophysical Union, calculates the environmental impact of phasing down hydrofluorocarbons, or HFCs, under the Montreal Protocol. The landmark 1987 agreement phased out the use of ozone-depleting refrigerants, like chlorofluorocarbons (CFCs), leading to increased used of replacements that include HFCs.
The March Sea Ice Record is downward at 2.6% /decade. The melt season is now extending by 5 days per decade. Most of the ice is very young ice so the melt will likely be rapid, depending on weather conditions.
19 March 2014
I’m glad this report tackles the myth (in America) that scientists are divided over the reality of our changing climate, and it’s cause. It’s totally and utterly false. Don’t believe me?? Go look at the journals like NATURE, SCIENCE, any AMS journal etc. If someone tells you that what’s in this report is wrong, you should ask them why they have not published the evidence why in a scientific journal. That’s …
20 December 2013
The large auditorium was standing-room only for former Senator Olympia Snowe’s (R-Maine) address at AGU’s 2013 Fall Meeting. An ally with a history of standing up for many of AGU’s key issues on and off Capitol Hill, Senator Snowe resigned in January of 2013 over what she saw as an increasingly inept and hyper-partisan atmosphere in Congress. During her time in the Senate, Snowe positioned herself in the middle of …
16 December 2013
Melting ice caps may not be the only problem the Arctic has to worry about as the climate changes. As temperatures rise, permafrost melts earlier and stays wet longer. When plants and other organic material in the soil thaw, they decompose, releasing huge quantities of methane and carbon dioxide.
13 December 2013
New data from ocean microbes in the Soledad basin off the coast of Baja, Calif., confirms a La Niña-like effect cooled surface waters 4,000 to 10,000 years ago.
11 December 2013
The shell of a tiny marine mollusk carries evidence of the ocean conditions that formed it, researchers have found. These “butterflies of the sea” could be used to determine the temperature and carbon dioxide levels of ancient oceans, they said this week at the American Geophysical Union’s Fall Meeting
3 December 2013
So you are having a great time at the AGU Fall Meeting. You are meeting science colleagues from around the world, you are seeing cutting edge research presented in the scientific program, and you are enjoying the sights and sounds of beautiful San Francisco. Then you check your email and the blood drains from your face. Your institution’s legal counsel explains that a Freedom of Information Law (FOIL) request has …
12 November 2013
What are your thoughts on the new Climate Change National Forum and Review (CCNFR)? According to the website’s founders, the forum offers one way for scientists, and eventually policy makers, to join the discussion on climate change. The organization’s founders, Dr. John Nielsen-Gammon, Dr. Barry Lefer, and Prof. Tracy Hester, developed CCNFR to educate the American public on the science of climate change and its policy implications. CCNFR’s main vehicle …
There are claims going around that Typhoon Haiyan was a result of climate change, and this is nothing short of ridiculous. There is some evidence that climate change will change the numbers (and intensity) of tropical cyclones, and some that the storms that do form will be stronger and wetter. That said, there is still a lot of uncertainty in those predictions. An excellent paper on this subject is from …
28 September 2013
This is a re-post from: The Yale Forum here points to several of its postings written to improve understanding of the wealth of climate data that will begin to emerge later this week from the IPCC’s Fifth Assessment Report. With the initial release of the first volume of the IPCC’s Fifth Assessment Report scheduled for 10 a.m. EDT on Friday, September 27, The Yale Forum points to several of …