Gavin’s sensitive side

Sensitive side (from the NASA Global Climate Change Website) By Rosemary Sullivant, NASA Jet Propulsion Laboratory A little extra carbon dioxide in the air may, unfortunately, go further towards warming Earth than previously thought. A team of British and U.S. researchers have uncovered evidence [1] that Earth’s climate may be up to 50 percent more…

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New paper: Tropical cyclone response to solar UV

Daily tropical cyclone intensity response to solar ultraviolet radiation J. B. Elsner, T. H. Jagger, and R. E. Hodges GEOPHYSICAL RESEARCH LETTERS, VOL. 37, L09701, doi:10.1029/2010GL043091, 2010 Abstract: An inverse relationship between hurricane activity over the Caribbean and the number of sunspots has recently been identified. Here we investigate this relationship using daily observations and…

Sun’s magnetics coming alive again

When I last looked at the Ap geomagnetic index back in January, it looked pretty grim. Solar geomagnetic index reaches unprecedented low – only “zero” could be lower – in a month when sunspots became more active Now with the release yesterday of the new Ap data from NOAA, we see the largest jump in 2…