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	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

• Climate change: Water vapor makes for a wet argument
• Carbon dioxide equivalents
• How we know an ice age isn't just around the corner
• Urban Heat Islands: serious problem or holiday destination for skeptics?
• The surprising result when you compare bad weather stations to good stations
• The empirical evidence that humans are causing global warming
• Sea level rise: the broader picture
• Human CO2: Peddling Myths About The Carbon Cycle
• Why we can trust the surface temperature record
• Ocean acidification threatens entire marine food chains
• Comparing volcanic CO2 to human CO2
• Can humans affect global climate?
• Climate Models: Learning From History Rather Than Repeating It
• Arctic sea ice... take 2
• Hansen etal hit a Climate Home Run -- in 1981
• Station drop-off: How many thermometers do you need to take a temperature?
• Arctic Sea Ice: Why Do Skeptics Think in Only Two Dimensions?
• Pakistan flood: many more will die unless more aid is delivered quickly
• Medieval Warm Period: rhetoric vs science
• Weather vs Climate: Watch the waves, miss the turning of the tides
• University of Western Australia Open Day 2010
• The main culprit in mid-century cooling
• Dust-Up On Mars: Should Martians Be Sceptical of Global Warming?
• What caused early 20th Century warming?
• The Oregon Petition: How Many Scientists Does It Take To Change A Consensus?
• How climate skeptics misunderstand past climate change
• 1934: the 47th hottest year on record
• The Strange Case of Albert Gore, Inconvenient Truths and a Man in a Powdered Wig
• What were climate scientists predicting in the 1970s?
• Can't We At Least Agree That There Is No Consensus?

Archives

Skeptic Arguments sorted by taxonomy

• It's not happening

  • Temp record is unreliable
    • Hockey stick is broken
      • Tree-rings diverge from temperature after 1960
    • Dropped stations introduce warming bias
    • It's Urban Heat Island effect
    • 1934 - hottest year on record
    • It's microsite influences
    • Satellite error inflated Great Lakes temperatures
  • It's cooling
    • We're heading into an ice age
    • It's freaking cold!
      • 2009-2010 winter saw record cold spells
      • Record snowfall disproves global warming
    • Oceans are cooling
    • It hasn't warmed since 1998
    • Phil Jones says no global warming since 1995
    • Global temperatures dropped sharply in 2007
  • Ice isn't melting
    • Antarctica is gaining ice
      • Antarctica is too cold to lose ice
    • Glaciers are growing
    • Greenland is gaining ice
    • Arctic icemelt is a natural cycle
      • Arctic sea ice is back to normal
    • Southern sea ice is increasing
  • Climategate CRU emails suggest conspiracy
    • Trenberth can't account for the lack of warming
    • Mike's Nature trick to 'hide the decline'
  • Sea level rise is exaggerated
  • There is no consensus
    • IPCC does not represent a scientific consensus
      • IPCC were wrong about Himalayan glaciers
      • IPCC were wrong about Amazon rainforests
      • Hulme says IPCC consensus was phoney
    • Al Gore got it wrong
    • Less than half of published scientists endorse global warming
    • 500 scientists refute the consensus
    • Naomi Oreskes' study on consensus was flawed
    • The science isn't settled
    • Over 31,000 scientists signed the OISM Petition Project
  • Springs aren't advancing
  • Melting ice isn't warming the Arctic

• It's not us

  • There's no empirical evidence
  • CO2 effect is weak
    • CO2 has a short residence time
    • CO2 effect is saturated
    • Greenhouse effect has been falsified
    • 2nd law of thermodynamics contradicts greenhouse theory
  • Climate's changed before
    • Medieval Warm Period was warmer
    • Greenland was green
    • We're coming out of the Little Ice Age
    • CO2 was higher in the past
      • CO2 was higher in the late Ordovician
    • It's just a natural cycle
    • It's a climate regime shift
  • There's no correlation between CO2 and temperature
    • It cooled mid-century
    • CO2 lags temperature
      • Warming causes CO2 rise
    • It warmed before 1940 when CO2 was low
    • We didn't have global warming during the Industrial Revolution
  • It's the sun
    • It's cosmic rays
    • Solar Cycle Length proves its the sun
    • The sun is getting hotter
    • Water levels correlate with sunspots
    • Solar cycles cause global warming
  • Other planets are warming
    • Neptune is warming
    • Mars is warming
    • Jupiter is warming
    • Pluto is warming
  • It's the ocean
    • It's El Niño
    • It's Pacific Decadal Oscillation
  • CO2 is not the only driver of climate
    • It's aerosols
      • A drop in volcanic activity caused warming
    • It's ozone
    • It's methane
    • It's land use
    • It's albedo
    • It's satellite microwave transmissions
    • It's waste heat
    • It's CFCs
    • Water vapor is the most powerful greenhouse gas
      • Water vapor in the stratosphere stopped global warming
    • It's global brightening
  • Humans are too insignificant to affect global climate
    • Human CO2 is a tiny % of CO2 emissions
      • CO2 is coming from the ocean
      • Volcanoes emit more CO2 than humans
      • CO2 emissions do not correlate with CO2 concentration
    • CO2 is not increasing
      • CO2 measurements are suspect
        • Mauna Loa is a volcano
  • Models are unreliable
    • Climate is chaotic and cannot be predicted
    • Ice age predicted in the 70s
    • Scientists can't even predict weather
    • There's no tropospheric hot spot
      • Satellites show no warming in the troposphere
    • Hansen's 1988 prediction was wrong
  • Extreme weather isn't caused by global warming
    • Hurricanes aren't linked to global warming
  • Mt. Kilimanjaro's ice loss is due to land use

• It's not bad

  • Climate sensitivity is low
    • Lindzen and Choi find low climate sensitivity
  • Animals and plants can adapt to global warming
    • Polar bear numbers are increasing
  • Greenland ice sheet won't collapse
  • CO2 is not a pollutant
    • Ocean acidification isn't serious
  • Sea level rise predictions are exaggerated
    • Scientists retracted claim that sea levels are rising
  • Greenland has only lost a tiny fraction of its ice mass