The correct answer
to the question:
"What causes
climate change?"
is just a list of suspects,
with no way to know
how much is natural
and how much is
man made.
Th UN's IPCC decided
to compromise by
claiming "over half"
of the global warming
since 1950 was man made.
There is no scientific proof
"over half" is correct, other
than being near the middle of
the obvious 0% to 100% range !
The climate alarmist cult
has stretched that to 100%,
and almost exclusively
blames CO2, released by
burning fossil fuels.
This blog sticks with
the correct answer
because jumping
to conclusions
may be good exercise,
but is not real science:
"No one knows"
is the correct answer,
and I also point out the
global warming since
1940, accompanied by
lots of CO2 emissions,
has been intermittent,
and harmless.
It's just as wrong to
claim global warming
since the mid-twentieth
century had 100%
natural causes, although
it's fair to point out that
100% natural causes
is possible, and should be
assumed in the absence
of scientific proof that a
specific portion of the
global warming
was man made.
After 4.5 billion years
of natural climate change,
it makes no sense to declare
natural causes are now just
"noise", and man made CO2
has taken over as the
"climate controller", with no
rational explanation of why
or how that would happen.
In a new scientific study,
scientists in Finland found
"practically no anthropogenic
[man-made] climate change"
after a series of studies.
“During the last hundred years
the temperature increased
about 0.1°C because of
carbon dioxide.
The human contribution
was about 0.01°C (10%),"
the Finnish researchers
state in one of their papers.
This has been collaborated
by a team at Kobe University
in Japan, also supporting
the theory:
"New evidence suggests
that high-energy particles
from space known as
galactic cosmic rays
affect the Earth's climate
by increasing cloud cover,
causing an 'umbrella effect',"
This 'umbrella effect'
— a natural occurrence —
could be the prime driver
of climate warming.
First of all,
galactic cosmic rays
are not a new theory
-- not even close
to being new.
The Finnish scientists
find that low cloud cover
"practically" controls
global temperatures
and that
“only a small part”
of the increased carbon
dioxide concentration
is anthropogenic,
or caused by humans.
Unfortunately, the six page
report of the study is not
persuasive, but it was
interesting to observe how
climate alarmists went berserk
after seeing the headlines !