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Solar flare danger – massive sunspot the size of Jupiter takes aim at Earth

The potential for a massive solar flare directed at Earth is looming large. An SDO/HMI view of the visible sun showing the largest sunspot of solar cycle 24, AR12192. Image via http://www.thesuntoday.org Since rotating into view, the sunspot group AR12192 has continued to grow in size and complexity, becoming the largest sunspot of the current…

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Climate Dialogue about the sun

Guest blog by Marcel Crok Over at Climate Dialogue we have started a new discussion about the influence of the sun on the climate. People familiar with climate discussions know that the sun has been and still is a popular argument to explain at least part of the warming since 1750. This has to do…

india rainfall nwi 1987 2006

Learning From The Monsoon

Guest Post by Willis Eschenbach Inspired by a claim made on WUWT that A new study led by Professor K.M. Hiremath of the Indian Institute of Astrophysics shows the strong, possibly causative correlation between variations in solar activity (red curve) and in monsoon rainfall (blue curve) in Figure 1. I decided to see what I…

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Observing the Birkeland currents borne of the solar wind

  When the supersonic solar wind hits the Earth’s magnetic field, a powerful electrical connection occurs with Earth’s field, generating millions of amperes of current that drive the dazzling auroras. These so-called Birkeland currents connect the ionosphere to the magnetosphere and channel solar wind energy to Earth’s uppermost atmosphere. Solar storms release torrential blasts of solar…