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You are browsing the archive for climate change Archives - AGU Blogosphere.

8 August 2017

Do Not Quote, Cite, or Distribute

Oh, why not. The draft Special Climate Assesment Report is here. The NY Times published the leaked report and it’s not good news. I plan on reading the whole thing this weekend, but the Executive Summary at the top will give you the take home points. The short of it is that climate change is already having a significant impact on our weather in the U.S. Perhaps most notable is the increase …

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3 August 2017

Uncertainty is Not Ignorance

Kate Marvel’s TED Talk is a must watch.

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1 August 2017

Threat to the ozone layer by future volcanic eruptions greater than previously thought

As the CFCs slowly degrade over the coming decades, so too should the volcano’s ozone-destroying power. However, new research shows that the volcanic risk to the ozone layer will persist for decades longer than previously believed.

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15 July 2017

Weathercasters Views of Climate Change Dramatically Shift

The number of weathercasters who are still sceptical of climate change is rapidly dwindling. I’ve noticed this anecdotally and now there is confirmation in a new paper in BAMS that it indeed the case. I know most of the authors of this paper, and it is worth noting that the survey was among weathercasters which include degreed meteorologists with a science background, and those who may have little in the way …

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11 July 2017

Public-Private Partnerships Contribute to Resilience Dialogues’ Successful Beta Phase

Across the United States, local leaders are stepping up their commitment to climate adaptation and mitigation.  In addition to our public voice about the urgent need to address climate change, AGU, working with U.S. Global Change Research Program and many other partners, is honored to support those local leaders through the Resilience Dialogues. At the end of June, this program, reached an exciting milestone and I can proudly share that …

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4 July 2017

Yet Another Climate Myth Is Gone

Update July 5, 2017: Carl Mears (one of the authors of the paper) has written an excellent FAQ about this subject that is well worth looking at. The myth that the satellite temperature measurements do not match the surface temperature record is one of the most enduring climate myths, but it’s now in the dustbin of history. A new paper in the AMS Journal of Climate has produced the latest reliable …

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27 June 2017

As climate stirs Arctic sea ice faster, pollution tags along

A warming climate is not just melting the Arctic’s sea ice; it is stirring the remaining ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country’s waters, says a new study. The new study, which maps the movement of sea ice in the region, underscores the risk of contaminated sea ice drifting from the economic zone of one country to another’s.

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19 June 2017

Fire & Rain, and Heat as Well.

Intense heat, with low humidity has led to a horrible catastrophe in Portugal. The hot and dry weather in Europe led to a firestorm in Portugal that killed at least 60 people. A strong upper level high pressure system will stay over the area tomorrow and little or no rain is in sight. This high pressure is bringing warm weather all the way into the UK with highs tomorrow in …

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13 June 2017

An Anthropogenic Heat Advisory

So, why such a small Heat Advisory? Look at the temps. at 11 PM EDT Monday night: Note the temps. in Central Philadelphia and Wilmington are around 6-10 degrees F. warmer than the surrounding areas. Yes it’s the urban heat island effect, and Philly has a big one.The extra heat pushed Philly beyond the criteria for a Heat Advisory, while areas away from the city were not hot enough. You may …

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6 June 2017

The Clown Just Popped Out of the Box!

Since the U.S. pulled out of the Paris accord last week, old climate myths have been crawling out of their coffins. This includes some real winners from the past like “They said in the 70’s we were going to freeze to death!”, but I have yet to hear the “but grapes grew in Greenland!” claim. Just in case, John Cook at Skeptical Science has a long list of these along …

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Study sheds new light on future of key Antarctic glacier

Thwaites Glacier’s ice loss may not progress as quickly as thought By Carol Rasmussen The melt rate of West Antarctica’s Thwaites Glacier is an important concern, because this glacier alone is currently responsible for about 1 percent of global sea level rise. A new study finds that Thwaites’ ice loss will continue, but not quite as rapidly as previous studies have estimated. The new study, published in Geophysical Research Letters, …

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1 June 2017

AGU RESPONDS TO TRUMP ADMINISTRATION’S DECISION REGARDING THE PARIS CLIMATE AGREEMENT

1 June 2017     Washington, D.C. – The following statement is attributable to Chris McEntee, Executive Director and CEO of the American Geophysical Union: “When signed in December 2015, the Paris Agreement marked a historic moment. Representatives of 195 nations came together to commit to lowering greenhouse gas emissions to help slow the far-reaching effects of climate change to the nation and the world. Today, in making a troubling, …

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AGU Responds to Trump Administration’s Decision Regarding the Paris Climate Agreement

Earlier today, the Trump administration announced plans for the U.S. to withdraw from the Paris Agreement. Eric Davidson, Robin Bell, and I published a related article in Eos as a response to President Trump’s decision. You can read that article here. AGU also issued the following media statement in which I said the following: When signed in December 2015, the Paris Agreement marked a historic moment. Representatives of 195 nations came …

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28 May 2017

How To Get Your Science Noticed? Get The Government to Try and Cover It Up!

Raul Grijalva, the ranking member of the House Committee on Natural Resources, sent a hot letter this week to the Secretary of the Interior. It was about the removal of the first line of a USGS press release last week. The press release was about a newly published paper showing a dramatic increase in coastal flooding as sea level rises, and I wrote about it last week here. Even Richard Nixon …

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25 May 2017

Scientists discover new mode of ice loss in Greenland

A new study finds that during Greenland’s hottest summers on record, 2010 and 2012, the ice in Rink Glacier on the island’s west coast didn’t just melt faster than usual, it slid through the glacier’s interior in a gigantic wave, like a warmed freezer pop sliding out of its plastic casing. The wave persisted for four months, with ice from upstream continuing to move down to replace the missing mass for at least four more months.

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23 May 2017

Deleting Science That is Politically Inconvenient Will Backfire

A major paper on the impact of sea-level rise is out today. FYI: The first line of this USGS release about the paper is missing the first line: “Global climate change drives sea-level rise, increasing the frequency of coastal flooding.” It was removed by political appointees in the Interior Dept. The Washington Post broke that story here:  The press release is here: https://www.usgs.gov/news/next-decades-frequency-coastal-flooding-will-double-globally I did a related story this week …

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20 May 2017

New Teacher’s Guide to Climate Change

Earlier in the year, a right-wing think tank (Heartland Institute) sent out a slick piece of non-scientific propaganda to thousands of teachers about climate change. It was pretty much a failure since virtually everyone I know in atmospheric science warned teachers about it, but now thanks to an NSF grant, there is some real science that can be safely used in the classroom. The PDF copy is free. Click on …

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18 May 2017

Planting trees cannot replace cutting carbon dioxide emissions, study shows

Growing plants and then storing the carbon dioxide they have taken up from the atmosphere is not a viable option to counteract unmitigated emissions from fossil fuel burning, a new study shows. Plantations would need to be so large they would eliminate most natural ecosystems or reduce food production if implemented as a late-regret option in the case of substantial failure to reduce emissions, according to the study.

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17 May 2017

Glacier Benito Journal: Prologue–1972 to 2011

A dream turns into an obsession. Finally an obsession is resolved. How did it happen? First post from an expedition to Glacier Benito.

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13 May 2017

Our Past Climate Is A Warning For the Future

There are some excellent books for non-scientists about our climate, but some of the best are written by Brian Fagan- an Archaeologist! His book The Long Summer is superb, and I am currently listening to a series of lectures he made for The Great Courses. Any story of human history is incomplete without looking at the role of climate, and in The Long Summer, Fagan points out that all of written …

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