Understanding Global Climate Change
Effects of Warming


Climate Armageddon: How the World's Weather Could Quickly Run Amok [Excerpt]

  Adapted from The Fate of the Species: Why the Human Race May
  Cause Its Own Extinction and How We Can Stop It, by Fred Guterl
  (Bloomsbury USA, 2012).

NOAA | Global Climate Change Indicators

  Many lines of scientific evidence show the Earth's climate is
  changing. This page presents the latest information from
  several independent measures of observed climate change that
  illustrate an overwhelmingly compelling story of a planet that
  is undergoing global warming. It is worth noting that
  increasing global temperature is only one element of observed
  global climate change. Precipitation patterns are also
  changing; storms and other extremes are changing as well.


NASA | Global Climate Change (Vital Signs of the Planet)

  Below are some of the impacts that are currently visible
  throughout the U.S. and will continue to affect these
  regions, according to the Third National Climate Assessment
  Report 2, released by the U.S. Global Change Research

  Northeast. Heat waves, heavy downpours and sea level rise
  pose growing challenges to many aspects of life in the
  Northeast. Infrastructure, agriculture, fisheries and
  ecosystems will be increasingly compromised. Many states and
  cities are beginning to incorporate climate change into
  their planning.

  Northwest. Changes in the timing of streamflow reduce water
  supplies for competing demands. Sea level rise, erosion,
  inundation, risks to infrastructure and increasing ocean
  acidity pose major threats. Increasing wildfire, insect
  outbreaks and tree diseases are causing widespread tree

  Southeast. Sea level rise poses widespread and continuing
  threats to the region's economy and environment. Extreme
  heat will affect health, energy, agriculture and more.
  Decreased water availability will have economic and
  environmental impacts.

  Midwest. Extreme heat, heavy downpours and flooding will
  affect infrastructure, health, agriculture, forestry,
  transportation, air and water quality, and more. Climate
  change will also exacerbate a range of risks to the Great

  Southwest. Increased heat, drought and insect outbreaks, all
  linked to climate change, have increased wildfires.
  Declining water supplies, reduced agricultural yields,
  health impacts in cities due to heat, and flooding and
  erosion in coastal areas are additional concerns.

ISU professor of Geological and Atmospheric Sciences
Bill Gutowski - Global Climate Change 101

ISU professor of Geological and Atmospheric Sciences
Eugene S. Takle (ISU) | Outreach Presentations


IPCC | Fifth Assessment Report - AR5 (2014)



It's probably too late to save the West Antarctic glaciers.
And East Antarctica's situation is unexpectedly precarious.

  Researchers have long recognized that the glaciers of West
  Antarctica are losing mass: Ice is oozing off the continent
  and into the sea faster than it's being replaced from above.
  But the long-term implications have been uncertain. Is the
  mass loss a short-lived response to the thermal forcing of
  warmer-than-usual ocean waters? Or will the collapse
  continue unchecked even if the forcing is removed? Two
  papers widely reported last week [May 2014] conclude that
  the West Antarctic's unstoppable collapse has probably

Climate MADness (It is NOT A GIVEN that we will survive)

  Because of climate change, some coastal villages and small
  island nations are already disappearing under rising seas.
  And don't think that, just because you live in the
  heartland, you and your descendants are safe: Researchers at
  Purdue University and the University of New South Wales in
  Australia have calculated that, if average global
  temperatures were to increase by about 7 degrees Celsius
  (which is conceivable within this century, in the absence of
  strong mitigation measures), humans in some regions would no
  longer be able to dissipate body heat quickly enough to
  survive. With warming of 11 to 12 degrees Celsius --
  entirely possible if emissions continue -- most of the
  places where humans now live would become uninhabitable.

Have We Passed the Point of No Return on Climate Change?

While we may not yet have reached the "point of no
return"-when no amount of cutbacks on greenhouse gas emissions
will save us from potentially catastrophic global
warming-climate scientists warn we may be getting awfully
close. Since the dawn of the Industrial Revolution a century
ago, the average global temperature has risen some 1.6 degrees
Fahrenheit. Most climatologists agree that, while the warming
to date is already causing environmental problems, another 0.4
degree Fahrenheit rise in temperature, representing a global
average atmospheric concentration of carbon dioxide (CO2) of
450 parts per million (ppm), could set in motion unprecedented
changes in global climate and a significant increase in the
severity of natural disasters-and as such could represent the
dreaded point of no return.