by Tom DiChristopher
likely to have been
hottest year since global temperatures
recorded in the 19th century.
When Trump took
office, I warned that Technocrats would cruise on
without a political care in the world, and that is
exactly what we see in this report.
machine simply rolls on, stating the same old worn-out
lies with the same old corrupted data and data models.
is behind the accelerated warming of the planet since the
mid-20th century, the latest U.S. National Climate
The report was
prepared by 13 federal agencies and approved by the White
contradicts public statements by President Donald Trump and
top administration officials who have cast doubt on humans'
role in climate change.
Human activity is the primary cause of rising global temperatures in
recent decades, and there is no convincing evidence to the contrary,
according to a report issued Friday by 13 U.S. agencies.
The assessment, approved
by the White House, contradicts public statements by President
Donald Trump and several top members of his administration.
The findings came in the
Fourth National Climate Assessment, an
authoritative review of climate science.
The assessment finds that
the period from 1901-2016 was the warmest in modern civilization and
warns that temperatures and sea levels will rise much more if no
action is taken.
concludes, based on extensive evidence, that it is extremely
likely that human activities, especially emissions of greenhouse
gases, are the dominant cause of the observed warming since the
mid-20th century," the report finds.
"For the warming over the last century, there is no convincing
alternative explanation supported by the extent of the
Trump has called
change a "hoax."
Agency (EPA) Administrator Scott Pruitt and Energy Secretary
Rick Perry both told CNBC earlier this year that carbon
dioxide emissions from
human activity are not the primary driver of
administration has rolled back a series of Obama-era rules and
initiatives to reduce greenhouse gas emissions and mitigate the
effects of climate change.
Trump announced in
June that he will
pull the United States out of the Paris Agreement, a global
effort to prevent world temperatures from rising 2 degrees Celsius
above preindustrial levels.
Temperatures in the United States have risen by 1.8 degrees
Fahrenheit, or 1 degree Celsius, since 1901, the report finds.
The authors forecast that
between 2021 and 2050 U.S. temperatures could rise by 2.5 degrees
Fahrenheit above 1975-2005 levels in all "plausible future
"The magnitude of
climate change beyond the next few decades will depend primarily
on the amount of greenhouse gases (especially carbon dioxide)
emitted globally," the authors wrote.
temperatures could increase by 9 degrees Fahrenheit above
preindustrial levels by the end of the century if humans do not
reduce emissions, they warn.
"In addition to
warming, many other aspects of global climate are changing,
primarily in response to human activities," the report finds.
"changes in surface,
atmospheric, and oceanic temperatures; melting glaciers;
diminishing snow cover; shrinking sea ice; rising sea levels;
ocean acidification; and increasing atmospheric water vapor,"
according to thousands of studies.
Global average sea levels have risen by 7 to 8 inches since 1900,
with about half of the rise occurring since 1993, according to the
The authors say a further
8-inch rise by 2100 cannot be ruled out, and the U.S. East and Gulf
coasts in particular will be impacted.
Changes in extreme weather events are putting humans,
infrastructure, agriculture, water supplies and ecosystems at risk.
The White House told CNBC that the Trump administration supports,
analysis and debate," and will continue to "support technology,
innovation and the development of modern and efficient
infrastructure" to reduce emissions and mitigate climate-related
"The climate has changed and is always changing.
Science Special Report states, the magnitude of future climate
change depends significantly on 'remaining uncertainty in the
sensitivity of Earth's climate to [greenhouse gas] emissions',"
said White House principal deputy press secretary Raj Shah, in a