The current US drought is not a surprise.

Guest post by David Archibald A large part of the US is currently in drought. A recent paper by Springer et al – “Solar forcing of Holocene droughts in a stalagmite record from West Virginia in east central North America” – analysed the Sr/Ca ratios and C13 values in a Holocene stalagmite from east-central North…

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Weekly Climate and Energy News Roundup

Quote of the Week: “EPA determined in December 2009 that climate change caused by emissions of greenhouse gases threatens the public’s health and the environment.” EPA “Denial of Petitions…” (Emphasis added) Number of the Week: 22 THIS WEEK: By Ken Haapala, Executive Vice President, Science and Environmental Policy Project (SEPP) GOOD NEWS! Heartland Institute is…

Atmospheric audio ducting

Amateur radio operators are very familiar with atmospheric ducting or “skip” as we call it, which (with the help of the ionosphere when the sun is cooperative) enables some very long distance radio communications well beyond line of sight. The same sometimes holds true for loud audio, such as thunder or sonic booms. See my…