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The energy output from the Sun has increased significantly during the
20th century, according to a new study.
Many studies have attempted to determine whether there is an upward
trend in the average magnitude of sunspots and solar flares over time,
but few firm conclusions have been reached.
Now, an international team of researchers led by Ilya Usoskin of the
Sodankylä Geophysical Observatory at the University of Oulu, Finland,
may have the answer.
They examined meteorites that had fallen to Earth over the past 240
years. By analyzing the amount of titanium 44, a radioactive isotope,
the team found a significant increase in the Sun's radioactive output
during the 20th century.
The Sun's impact on climate has only recently been investigated.
Recent studies show that an increase in solar output can cause short-
term changes in Earth's climate, but there is no firm evidence linking
solar activity with long-term climate effects.
The rise in solar activity at the beginning of the last century through the
1950s or so matches with the increase in global temperatures, Usoskin
But the link doesn't hold up from about the 1970s to present.
The rise in solar activity at the beginning of the last century through the 1950s or so matches with the increase in global temperatures, Usoskin said. But the link doesn't hold up from about the 1970s to present.
look even i fthe sun is on it's way to blowing up, things happen very slowly in space
Originally posted by Tetragrammaton
This thought of thing could happen instantly and would reach earth in approximately 7 minutes.
Originally posted by aaaaa
A few months ago there was a report about Martian icecaps growing smaller. Related?