RSS Posts
   RSS Comments
   Subscribe by Email

Find out about our iPhone app...

Support Skeptical Science:

	It's the sun
	Climate's changed before
	There is no consensus
	It's cooling
	Models are unreliable
	Temp record is unreliable
	It hasn't warmed since 1998
	Ice age predicted in the 70s
	We're heading into an ice age
	Antarctica is gaining ice
	View All Arguments...

Latest Posts

• CO2 levels during the late Ordovician
• Guest post: scrutinising the 31,000 scientists in the OISM Petition Project
• Watts Up With That's ignorance regarding Antarctic sea ice
• iPhone app version 1.1 - now with search, image viewer and Twitter!
• Does record snowfall disprove global warming?
• New observations find underwater Arctic Shelf is perforated and venting methane
• Visual depictions of Sea Level Rise
• Every skeptic argument ever used
• YouTube video on the empirical evidence for man-made global warming
• Skeptical Science housekeeping: Woody Guthrie award, bug-fixes, Facebook and donations
• Senator Inhofe's attempt to distract us from the scientific realities of global warming
• Misinterpreting a retraction of rising sea level predictions
• A brief history of our iPhone app
• Have American Thinker disproven global warming?
• What would happen if the sun fell to Maunder Minimum levels?
• Visual depictions of CO2 levels and CO2 emissions
• Did Phil Jones really say global warming ended in 1995?
• The Dunning-Kruger effect and the climate debate
• Skeptical Science housekeeping: iPhone app, comments and translations
• Is CO2 a pollutant?
• Skeptical Science now an iPhone app
• Working out future sea level rise from the past
• Could climate shifts be causing global warming?
• What the IPCC and peer-reviewed science say about Amazonian forests
• The role of stratospheric water vapor in global warming
• Lessons from the Monckton/Plimer debate
• Guest post in Guardian on microsite influences
• The upcoming ice age has been postponed indefinitely
• Peer reviewed impacts of global warming
• On the reliability of the U.S. Surface Temperature Record

Archives

Evidence for global warming

What the science says...

The evidence for global warming is being meticulously accumulated by scientists all over the world. This evidence includes the following independent observations that paint a consistent picture of global warming:

• Our planet is suffering an energy imbalance and is steadily accumulating heat (Hansen 2005, Murphy 2009, von Schuckmann 2009, Trenberth 2009)
• Animal and plant species are responding to earlier springs. Eg - earlier frog breeding, bird nesting, earlier flowering, earlier migration of birds and butterflies (Parmesan 2003)
• The distribution of tree lines, plants, birds, mammals, insects, fish, reptiles, marine invertebrates are shifting towards the poles (Parmesan 2003)
• Arctic permafrost is warming at greater depths (Walsh 2009) and degrading (IPCC AR4, section 4.7.2.3)
• Global sea level rise is accelerating (Church 2006)
• Antarctic ice loss is accelerating (Velicogna 2009), even from East Antarctica which was previously thought to be too stable to lose ice mass (Chen 2009)
• Greenland ice loss is accelerating (Velicogna 2009, van den Broeke et al 2009)
• Glaciers are shrinking globally at an accelerating rate (WGMS 2008)
• Arctic sea-ice loss is accelerating with the loss rate exceeding model forecasts by around a factor of 3 (Stroeve 2007).
• The height of the tropopause is increasing (Santer 2003, press release)
• Jet streams are moving poleward (Archer 2008, Seidel 2007, Fu 2006)
• The tropical belt is widening (Seidel 2007, Fu 2006)
• There is an increasing trend in record hot days versus record cold temperatures with currently twice as many record hot days than record cold temperatures (Meehle 2009, see press release).
• A shift towards earlier seasons (Stine 2009)
• Lake and river ice cover throughout the Northern Hemisphere are freezing later and breaking up earlier (Magnuson 2000, Hodgkins 2005)
• Changes to physical and biological systems across the globe are consistent with warming temperatures (Rosenzweig 2008)
• Cooling and contraction of the upper atmosphere consistent with predicted effects of increasing greenhouse gases (Lastovicka 2008)
• Distribution of plants are shifting to higher elevations (Lenoir 2008)

Printable Version  |  Link to this page

Link to this page