In 2005, the U.S.
National Oceanic
and Atmospheric
Administration
( NOAA )
began recording
temperatures
at its new U.S.
Climate Reference
Network (USCRN).
USCRN currently includes
114 properly sited
and maintained
temperature stations
spread across
the lower 48 states.
NOAA selected locations
that wear far from the
influence of economic growth
and land use changes that
can artificially raise
temperature readings.
Prior to 2005, most
temperature stations
were located in, or near,
metropolitan areas.
Skeptics pointed out that
most U.S. warming
was NOT in the raw
temperature data,
but was created by
the "adjustments"
by government officials.
USCRN temperature stations
show no warming since 2005.
In fact, 2019 was an
unusually cool year:
All of the claimed
U.S. warming
since the 1930s
is from controversial
"adjustments" made
to the raw data.
In addition to
"adjustments",
warming
is generated
by growing cities,
more asphalt,
more automobiles,
more machinery, etc.
Weather satellite instruments
that report GLOBAL AVERAGE
temperatures, have risen
only +0.15 degrees Celsius
since 2005, less than half
the warming predicted by the
United Nations Intergovernmental
Panel on Climate Change's
computer climate models.