To: maceng2 who wrote (1172682 ) 10/20/2019 6:28:56 PM From: Wharf Rat Read Replies (1) | Respond to (1) That the Sun is going though an historic quiet periodThe last time that Earth's poles flipped in a major reversal was about 780,000 years ago, in what scientists call the Brunhes-Matuyama reversal. The fossil record shows no drastic changes in plant or animal life. Deep ocean sediment cores from this period also indicate no changes in glacial activity, based on the amount of oxygen isotopes in the cores. This is also proof that a polarity reversal would not affect the rotation axis of Earth, as the planet's rotation axis tilt has a significant effect on climate and glaciation and any change would be evident in the glacial record ."The science shows that magnetic pole reversal is – in terms of geologic time scales – a common occurrence that happens gradually over millennia. While the conditions that cause polarity reversals are not entirely predictable – the north pole's movement could subtly change direction, for instance – there is nothing in the millions of years of geologic record to suggest that any of the 2012 doomsday scenarios connected to a pole reversal should be taken seriously. "nasa.gov science.nasa.gov (3) Cosmic rays will increase cloud cover. Pierce and Adams (2009) Kazil et al. (2006) found :Sloan and Wolfendale (2008) Kristjansson et al. (2008) Calogovic et al. (2010) Kulmala et al. (2010) Laken et al. (2013) Krissansen-Totton & Davies (2013) Almeida et al. (2013)
