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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Climate's changed before
It's the sun
It's not bad
There is no consensus
It's cooling
Models are unreliable
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Animals and plants can adapt
It hasn't warmed since 1998
Antarctica is gaining ice
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Climate Hustle

Skeptical Science iPhone Reports

Here are global warming skeptic arguments ranked by how often they've been reported from the Skeptical Science iPhone app. You can download the iPhone app for free from http://itunes.com/apps/skepticalscience.

Total # of reports submitted: 16257

1 Models are unreliable 15.3%
2 Temp record is unreliable 7.3%
3 Hockey stick is broken 4.8%
4 Climate's changed before 4.4%
5 It's the sun 3.0%
6 There's no empirical evidence 2.8%
7 There is no consensus 2.3%
8 It's cooling 2.2%
9 1934 - hottest year on record 2.1%
10 CO2 limits will harm the economy 2.1%
11 It's freaking cold! 1.9%
12 It hasn't warmed since 1998 1.9%
13 Antarctica is gaining ice 1.6%
14 Medieval Warm Period was warmer 1.5%
15 We're heading into an ice age 1.3%
16 Renewables can't provide baseload power 1.3%
17 Polar bear numbers are increasing 1.3%
18 Increasing CO2 has little to no effect 1.3%
19 Tree-rings diverge from temperature after 1960 1.2%
20 It's not bad 1.2%
21 It's a 1500 year cycle 1.2%
22 Ice age predicted in the 70s 1.1%
23 Al Gore got it wrong 1.0%
24 CO2 is not a pollutant 1.0%
25 It's Urban Heat Island effect 1.0%
26 Animals and plants can adapt 1.0%
27 Climategate CRU emails suggest conspiracy 1.0%
28 CO2 lags temperature 0.9%
29 Greenland was green 0.8%
30 Volcanoes emit more CO2 than humans 0.8%
31 Global warming stopped in 1998, 1995, 2002, 2007, 2010, ???? 0.8%
32 Phil Jones says no global warming since 1995 0.8%
33 Climate sensitivity is low 0.8%
34 Oceans are cooling 0.7%
35 We're coming out of the Little Ice Age 0.7%
36 Ice isn't melting 0.7%
37 Sea level rise predictions are exaggerated 0.7%
38 It's a natural cycle 0.6%
39 CO2 was higher in the past 0.6%
40 2009-2010 winter saw record cold spells 0.6%
41 Human CO2 is a tiny % of CO2 emissions 0.6%
42 IPCC is alarmist 0.6%
43 It's microsite influences 0.5%
44 The science isn't settled 0.5%
45 IPCC were wrong about Himalayan glaciers 0.5%
46 Dropped stations introduce warming bias 0.5%
47 Greenland ice sheet won't collapse 0.4%
48 Water vapor is the most powerful greenhouse gas 0.4%
49 Glaciers are growing 0.4%
50 Arctic icemelt is a natural cycle 0.4%
51 Sea level rise is exaggerated 0.4%
52 Record snowfall disproves global warming 0.4%
53 Less than half of published scientists endorse global warming 0.4%
54 Scientists can't even predict weather 0.4%
55 Humans are too insignificant to affect global climate 0.4%
56 It's only a few degrees 0.4%
57 CO2 effect is saturated 0.4%
58 Over 31,000 scientists signed the OISM Petition Project 0.3%
59 Solar cycles cause global warming 0.3%
60 CO2 has a short residence time 0.3%
61 Earth hasn't warmed as much as expected 0.3%
62 Greenland is gaining ice 0.3%
63 Other planets are warming 0.3%
64 There's no correlation between CO2 and temperature 0.3%
65 Hansen's 1988 prediction was wrong 0.3%
66 Scientists tried to 'hide the decline' in global temperature 0.3%
67 CO2 only causes 35% of global warming 0.3%
68 Arctic sea ice has recovered 0.3%
69 They changed the name from 'global warming' to 'climate change' 0.3%
70 It cooled mid-century 0.3%
71 Mars is warming 0.3%
72 Ocean acidification isn't serious 0.3%
73 CO2 is plant food 0.3%
74 It's cosmic rays 0.3%
75 Trenberth can't account for the lack of warming 0.3%
76 Melting ice isn't warming the Arctic 0.3%
77 500 scientists refute the consensus 0.3%
78 Warming causes CO2 rise 0.2%
79 Peer review process was corrupted 0.2%
80 Murry Salby finds CO2 rise is natural 0.2%
81 CO2 is not the only driver of climate 0.2%
82 The IPCC consensus is phoney 0.2%
83 Satellite error inflated Great Lakes temperatures 0.2%
84 It's El Niño 0.2%
85 Climate is chaotic and cannot be predicted 0.2%
86 Greenhouse effect has been falsified 0.2%
87 We're heading into cooling 0.2%
88 CRU tampered with temperature data 0.2%
89 The sun is getting hotter 0.2%
90 Mt. Kilimanjaro's ice loss is due to land use 0.2%
91 Naomi Oreskes' study on consensus was flawed 0.2%
92 2nd law of thermodynamics contradicts greenhouse theory 0.2%
93 It's methane 0.2%
94 Lindzen and Choi find low climate sensitivity 0.2%
95 CO2 measurements are suspect 0.2%
96 Neptune is warming 0.2%
97 Humidity is falling 0.2%
98 IPCC overestimate temperature rise 0.1%
99 Jupiter is warming 0.1%
100 Extreme weather isn't caused by global warming 0.1%
101 It warmed before 1940 when CO2 was low 0.1%
102 It's a climate regime shift 0.1%
103 Solar Cycle Length proves its the sun 0.1%
104 It's albedo 0.1%
105 Scientists retracted claim that sea levels are rising 0.1%
106 It's CFCs 0.1%
107 Springs aren't advancing 0.1%
108 CO2 was higher in the late Ordovician 0.1%
109 DMI show cooling Arctic 0.1%
110 IPCC were wrong about Amazon rainforests 0.1%
111 Hurricanes aren't linked to global warming 0.1%
112 Antarctica is too cold to lose ice 0.1%
113 Positive feedback means runaway warming 0.1%
114 Southern sea ice is increasing 0.1%
115 Roy Spencer finds negative feedback 0.1%
116 Greenland has only lost a tiny fraction of its ice mass 0.1%
117 It warmed just as fast in 1860-1880 and 1910-1940 0.1%
118 Postma disproved the greenhouse effect 0.1%
119 Royal Society embraces skepticism 0.1%
120 We didn't have global warming during the Industrial Revolution 0.1%
121 Record high snow cover was set in winter 2008/2009 0.1%
122 A drop in volcanic activity caused warming 0.1%
123 CO2 is coming from the ocean 0.1%
124 Skeptics were kept out of the IPCC? 0.1%
125 Tuvalu sea level isn't rising 0.1%
126 Pluto is warming 0.1%
127 Ice Sheet losses are overestimated 0.1%
128 Breathing contributes to CO2 buildup 0.1%
129 It's Pacific Decadal Oscillation 0.1%
130 Most of the last 10,000 years were warmer 0.1%
131 Freedom of Information (FOI) requests were ignored 0.1%
132 There's no tropospheric hot spot 0.1%
133 It's aerosols 0.1%
134 Water levels correlate with sunspots 0.1%
135 It's the ocean 0.1%
136 CO2 is not increasing 0.1%
137 97% consensus on human-caused global warming has been disproven 0.1%
138 Satellites show no warming in the troposphere 0.1%
139 Clouds provide negative feedback 0.1%
140 It's ozone 0.1%
141 Corals are resilient to bleaching 0.1%
142 Soares finds lack of correlation between CO2 and temperature 0.1%
143 Arctic sea ice extent was lower in the past 0.1%
144 Mauna Loa is a volcano 0.1%
145 It's waste heat 0.1%
146 Arctic sea ice loss is matched by Antarctic sea ice gain 0.0%
147 Sea level fell in 2010 0.0%
148 It's satellite microwave transmissions 0.0%
149 It's land use 0.0%
150 CERN CLOUD experiment proved cosmic rays are causing global warming 0.0%
151 Loehle and Scafetta find a 60 year cycle causing global warming 0.0%
152 Water vapor in the stratosphere stopped global warming 0.0%
153 Sea level is not rising 0.0%
154 An exponential increase in CO2 will result in a linear increase in temperature 0.0%
155 No warming in 16 years 0.0%
156 CO2 emissions do not correlate with CO2 concentration 0.0%
157 Ljungqvist broke the hockey stick 0.0%
158 No long tail means climate sensitivity is low 0.0%
159 CO2 is just a trace gas 0.0%
160 Renewable energy investment kills jobs 0.0%
161 Renewable energy is too expensive 0.0%
162 CO2 increase is natural, not human-caused 0.0%
163 It's global brightening 0.0%
164 Heatwaves have happened before 0.0%
165 Climate scientists are in it for the money 0.0%
166 Humans survived past climate changes 0.0%
167 Removing all CO2 would make little difference 0.0%
168 Venus doesn't have a runaway greenhouse effect 0.0%
169 Animal agriculture and eating meat are the biggest causes of global warming 0.0%
170 IPCC ‘disappeared’ the Medieval Warm Period 0.0%
171 It's clouds 0.0%
172 A grand solar minimum could trigger another ice age 0.0%
173 Adapting to global warming is cheaper than preventing it 0.0%
174 CO2 limits will hurt the poor 0.0%
175 It's not urgent 0.0%
176 IPCC graph showing accelerating trends is misleading 0.0%
177 It's a climate shift step function caused by natural cycles 0.0%
178 Arctic was warmer in 1940 0.0%
179 Arctic Storm Caused the 2012 Record Sea Ice Minimum 0.0%
180 Climate 'Skeptics' are like Galileo 0.0%
181 0.0%
182 CO2 limits will make little difference 0.0%
183 IPCC human-caused global warming attribution confidence is unfounded 0.0%


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