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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
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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: 16080

1 Models are unreliable 15.4%
2 Temp record is unreliable 7.3%
3 Hockey stick is broken 4.9%
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 2.2%
10 CO2 limits will harm the economy 2.1%
11 It hasn't warmed since 1998 1.9%
12 It's freaking cold! 1.9%
13 Antarctica is gaining ice 1.6%
14 Medieval Warm Period was warmer 1.5%
15 Renewables can't provide baseload power 1.4%
16 We're heading into an ice age 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 Oceans are cooling 0.7%
34 Climate sensitivity is low 0.7%
35 We're coming out of the Little Ice Age 0.7%
36 Sea level rise predictions are exaggerated 0.7%
37 Ice isn't melting 0.7%
38 CO2 was higher in the past 0.6%
39 It's a natural cycle 0.6%
40 2009-2010 winter saw record cold spells 0.6%
41 IPCC is alarmist 0.6%
42 Human CO2 is a tiny % of CO2 emissions 0.6%
43 It's microsite influences 0.5%
44 IPCC were wrong about Himalayan glaciers 0.5%
45 Dropped stations introduce warming bias 0.5%
46 The science isn't settled 0.5%
47 Greenland ice sheet won't collapse 0.5%
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 Less than half of published scientists endorse global warming 0.4%
52 Sea level rise is exaggerated 0.4%
53 Record snowfall disproves 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 Greenland is gaining ice 0.3%
61 CO2 has a short residence time 0.3%
62 Other planets are warming 0.3%
63 Earth hasn't warmed as much as expected 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 Arctic sea ice has recovered 0.3%
68 CO2 only causes 35% of global warming 0.3%
69 They changed the name from 'global warming' to 'climate change' 0.3%
70 Mars is warming 0.3%
71 Ocean acidification isn't serious 0.3%
72 It cooled mid-century 0.3%
73 Trenberth can't account for the lack of warming 0.3%
74 Melting ice isn't warming the Arctic 0.3%
75 CO2 is plant food 0.2%
76 It's cosmic rays 0.2%
77 500 scientists refute the consensus 0.2%
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 2nd law of thermodynamics contradicts greenhouse theory 0.2%
92 It's methane 0.2%
93 CO2 measurements are suspect 0.2%
94 Naomi Oreskes' study on consensus was flawed 0.2%
95 Lindzen and Choi find low climate sensitivity 0.2%
96 Neptune is warming 0.2%
97 Humidity is falling 0.2%
98 IPCC overestimate temperature rise 0.1%
99 Extreme weather isn't caused by global warming 0.1%
100 It warmed before 1940 when CO2 was low 0.1%
101 It's a climate regime shift 0.1%
102 Jupiter is warming 0.1%
103 Solar Cycle Length proves its the sun 0.1%
104 It's albedo 0.1%
105 It's CFCs 0.1%
106 Springs aren't advancing 0.1%
107 CO2 was higher in the late Ordovician 0.1%
108 Scientists retracted claim that sea levels are rising 0.1%
109 IPCC were wrong about Amazon rainforests 0.1%
110 Hurricanes aren't linked to global warming 0.1%
111 DMI show cooling Arctic 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 A drop in volcanic activity caused warming 0.1%
122 Pluto is warming 0.1%
123 Record high snow cover was set in winter 2008/2009 0.1%
124 Ice Sheet losses are overestimated 0.1%
125 CO2 is coming from the ocean 0.1%
126 Skeptics were kept out of the IPCC? 0.1%
127 Tuvalu sea level isn't rising 0.1%
128 It's Pacific Decadal Oscillation 0.1%
129 Most of the last 10,000 years were warmer 0.1%
130 Freedom of Information (FOI) requests were ignored 0.1%
131 There's no tropospheric hot spot 0.1%
132 It's aerosols 0.1%
133 Breathing contributes to CO2 buildup 0.1%
134 Water levels correlate with sunspots 0.1%
135 CO2 is not increasing 0.1%
136 Satellites show no warming in the troposphere 0.1%
137 It's the ocean 0.1%
138 97% consensus on human-caused global warming has been disproven 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 CERN CLOUD experiment proved cosmic rays are causing global warming 0.0%
150 It's land use 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 An exponential increase in CO2 will result in a linear increase in temperature 0.0%
154 No warming in 16 years 0.0%
155 CO2 emissions do not correlate with CO2 concentration 0.0%
156 Renewable energy investment kills jobs 0.0%
157 CO2 increase is natural, not human-caused 0.0%
158 It's global brightening 0.0%
159 Heatwaves have happened before 0.0%
160 Removing all CO2 would make little difference 0.0%
161 Ljungqvist broke the hockey stick 0.0%
162 CO2 is just a trace gas 0.0%
163 Animal agriculture and eating meat are the biggest causes of global warming 0.0%
164 IPCC ‘disappeared’ the Medieval Warm Period 0.0%
165 It's clouds 0.0%
166 Adapting to global warming is cheaper than preventing it 0.0%
167 Renewable energy is too expensive 0.0%
168 It's not urgent 0.0%
169 IPCC graph showing accelerating trends is misleading 0.0%
170 It's a climate shift step function caused by natural cycles 0.0%
171 Arctic was warmer in 1940 0.0%
172 Arctic Storm Caused the 2012 Record Sea Ice Minimum 0.0%
173 Climate 'Skeptics' are like Galileo 0.0%
174 CO2 limits will make little difference 0.0%
175 IPCC human-caused global warming attribution confidence is unfounded 0.0%
176 No long tail means climate sensitivity is low 0.0%
177 Sea level is not rising 0.0%
178 Venus doesn't have a runaway greenhouse effect 0.0%


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