Climate change research and 9-11 contribution

Russ Steele

Nigel Calder the co-author of The Chilling Stars: A Cosmic View of Climate Change also posts on his blog Calder’s Updates. This morning ten years after the 9-11 event he reminds us of a climatic footnote to the 9-11 disastrous attack on America by islamic terrorists in his post Warmer days and cooler nights when cosmic rays are scarce

Here’s a reminder of a climatic footnote to the 9/11 terrorist attacks on New York and Washington DC, ten years ago this weekend. With civilian aircraft grounded for three days, and without the contrails that usually criss-cross the skies of the USA, the difference between daytime and night-time temperatures at the surface increased. (See the Travis reference below.) Apparently like many other clouds (not all) the contrails reduce sunshine during the day and blanket the loss of heat at night. Take away those man-made clouds and the days become a little warmer and the nights a little cooler. In the jargon: the diurnal temperature range (DTR) increases.

An echo of that mini-climatic event comes with the news that the DTR in Europe increases when there’s a big reduction in cosmic rays arriving at the Earth. With the implication that the skies are less cloudy at such times, it’s strong evidence in favour of Henrik Svensmark’s hypothesis that cosmic rays help to make clouds. The report comes from Aleksandar Dragić and his colleagues at the Institute of Physics in Belgrade. I’m grateful to Bengt Andersson for drawing their paper to my attention. It was published on 31 August and the full text is available here http://www.astrophys-space-sci-trans.net/7/315/2011/astra-7-315-2011.pdf  It’s typical of the pathetic state of science reporting that I still seem to have the story to myself ten days later.

You can read the full post here.

Advertisements

About Russ Steele

Freelance writer and climate change blogger. Russ spent twenty years in the Air Force as a navigator specializing in electronics warfare and digital systems. After his service he was employed for sixteen years as concept developer for TRW, an aerospace and automotive company, and then was CEO of a non-profit Internet provider for 18 months. Russ's articles have appeared in Comstock's Business, Capitol Journal, Trailer Life, Monitoring Times, and Idaho Magazine.
This entry was posted in Cosmic Rays, History, Solar. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s