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You are browsing the archive for climate change Archives - Page 2 of 16 - AGU Blogosphere.

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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11 May 2017

Warmer temps cause decline in key runoff measure

Since the mid-1980s, the percentage of precipitation that becomes streamflow in the Upper Rio Grande watershed has fallen more steeply than at any point in at least 445 years, according to a new study. While this decline was driven in part by the transition from an unusually wet period to an unusually dry period, rising temperatures deepened the trend.

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6 May 2017

Using Basic Algebra To Develop An Extreme Temperature Index

This is a cross-post from my friend and fellow meteorologist Guy Walton. Guy is working on an extreme temperature index that will take into account not just the magnitude of the record but weight this by the length of the record. Breaking a record at a site with 50 years of data is not as important as doing the same in a place with 135 years of data. The next …

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29 April 2017

Smart People Listen to Those Who Dwell in Facts, Even When They Are Uncomfortable!

I was invited to a seminar at NASA Goddard last week which combined some top climate experts with meteorologists who work in media. We shared ideas on how to better communicate science, but the highlight was an update from some top NASA and NOAA climate experts. Dr Ben Santer went over the satellite temperature record, (and in the process destroyed some of the lingering myths that keep being repeated), and …

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26 April 2017

Sea level rising faster now than during 1990s, new study shows

Global mean sea level is rising 25 percent faster now than it did during the late 20th century largely due to increased melting of the Greenland Ice Sheet, a new study shows. Satellites first started measuring sea level rise in 1993. The new study revisits how well these measurements agree with independently observed changes in the various components contributing to sea level rise.

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23 April 2017

Thousands Stand Up for Mankind’s Greatest Invention- Science

Thousands of scientists from around the world did something that seemed unimaginable a few years ago. They stood up and made their voices heard in defense of science. Thousands of scientists braved a steady light rain and cool temperatures to gather on the Mall in Washington today and then marched toward the Capitol. The rain was not a surprise because the forecast for the day was nearly spot-on (thanks to …

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19 April 2017

NOAA: 2nd Hottest March on Record. When Was the last Below Average Month??

52 years ago.

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Science: “An Exercise in Finding What’s True”

Neil de Grasse Tyson’s video below is a must watch. His quote that “Science in an entire exercise in finding what is true”, is similar to another quote that I’ve often repeated from Richard Feynman: “Science is what we do to keep from lying to ourselves.” Watch the video and then share it.

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