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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: 16338

1 Models are unreliable 15.2%
2 Temp record is unreliable 7.4%
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 2.2%
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 Increasing CO2 has little to no effect 1.3%
18 Polar bear numbers are increasing 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 1.1%
22 Ice age predicted in the 70s 1.1%
23 CO2 is not a pollutant 1.0%
24 Al Gore got it wrong 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 Climate sensitivity is low 0.8%
33 Phil Jones says no global warming since 1995 0.8%
34 Oceans are cooling 0.7%
35 Ice isn't melting 0.7%
36 We're coming out of the Little Ice Age 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 IPCC is alarmist 0.6%
42 Human CO2 is a tiny % of CO2 emissions 0.6%
43 It's microsite influences 0.5%
44 Dropped stations introduce warming bias 0.5%
45 The science isn't settled 0.5%
46 IPCC were wrong about Himalayan glaciers 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 Sea level rise is exaggerated 0.4%
51 Record snowfall disproves global warming 0.4%
52 Arctic icemelt is a natural cycle 0.4%
53 Less than half of published scientists endorse global warming 0.4%
54 Humans are too insignificant to affect global climate 0.4%
55 Scientists can't even predict weather 0.4%
56 It's only a few degrees 0.4%
57 CO2 effect is saturated 0.3%
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 There's no correlation between CO2 and temperature 0.3%
64 Hansen's 1988 prediction was wrong 0.3%
65 Scientists tried to 'hide the decline' in global temperature 0.3%
66 Other planets are warming 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 Mars is warming 0.3%
71 Ocean acidification isn't serious 0.3%
72 It cooled mid-century 0.3%
73 It's cosmic rays 0.3%
74 500 scientists refute the consensus 0.3%
75 CO2 is plant food 0.3%
76 Trenberth can't account for the lack of warming 0.3%
77 Melting ice isn't warming the Arctic 0.3%
78 CO2 is not the only driver of climate 0.2%
79 Warming causes CO2 rise 0.2%
80 Peer review process was corrupted 0.2%
81 Murry Salby finds CO2 rise is natural 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 Greenhouse effect has been falsified 0.2%
86 Climate is chaotic and cannot be predicted 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 Naomi Oreskes' study on consensus was flawed 0.2%
94 CO2 measurements are suspect 0.2%
95 Lindzen and Choi find low climate sensitivity 0.2%
96 Neptune is warming 0.2%
97 IPCC overestimate temperature rise 0.2%
98 Humidity is falling 0.2%
99 It's a climate regime shift 0.1%
100 Jupiter is warming 0.1%
101 Solar Cycle Length proves its the sun 0.1%
102 Extreme weather isn't caused by global warming 0.1%
103 It warmed before 1940 when CO2 was low 0.1%
104 It's albedo 0.1%
105 It's CFCs 0.1%
106 DMI show cooling Arctic 0.1%
107 Scientists retracted claim that sea levels are rising 0.1%
108 Springs aren't advancing 0.1%
109 CO2 was higher in the late Ordovician 0.1%
110 IPCC were wrong about Amazon rainforests 0.1%
111 Hurricanes aren't linked to global warming 0.1%
112 Roy Spencer finds negative feedback 0.1%
113 Antarctica is too cold to lose ice 0.1%
114 Greenland has only lost a tiny fraction of its ice mass 0.1%
115 Positive feedback means runaway warming 0.1%
116 Southern sea ice is increasing 0.1%
117 Postma disproved the greenhouse effect 0.1%
118 It warmed just as fast in 1860-1880 and 1910-1940 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 CO2 is coming from the ocean 0.1%
123 Skeptics were kept out of the IPCC? 0.1%
124 Tuvalu sea level isn't rising 0.1%
125 Pluto is warming 0.1%
126 A drop in volcanic activity caused warming 0.1%
127 Breathing contributes to CO2 buildup 0.1%
128 Ice Sheet losses are overestimated 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 It's Pacific Decadal Oscillation 0.1%
134 Water levels correlate with sunspots 0.1%
135 Soares finds lack of correlation between CO2 and temperature 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 It's the ocean 0.1%
140 Clouds provide negative feedback 0.1%
141 It's ozone 0.1%
142 Arctic sea ice extent was lower in the past 0.1%
143 Mauna Loa is a volcano 0.1%
144 It's waste heat 0.1%
145 It's land use 0.1%
146 Corals are resilient to bleaching 0.1%
147 Arctic sea ice loss is matched by Antarctic sea ice gain 0.0%
148 CERN CLOUD experiment proved cosmic rays are causing global warming 0.0%
149 Sea level fell in 2010 0.0%
150 It's satellite microwave transmissions 0.0%
151 Water vapor in the stratosphere stopped global warming 0.0%
152 Sea level is not rising 0.0%
153 Loehle and Scafetta find a 60 year cycle causing global warming 0.0%
154 No warming in 16 years 0.0%
155 An exponential increase in CO2 will result in a linear increase in temperature 0.0%
156 Ljungqvist broke the hockey stick 0.0%
157 Climate scientists are in it for the money 0.0%
158 No long tail means climate sensitivity is low 0.0%
159 CO2 emissions do not correlate with CO2 concentration 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 Arctic was warmer in 1940 0.0%
166 Humans survived past climate changes 0.0%
167 Removing all CO2 would make little difference 0.0%
168 CO2 is just a trace gas 0.0%
169 CO2 limits will hurt the poor 0.0%
170 It's not urgent 0.0%
171 IPCC graph showing accelerating trends is misleading 0.0%
172 It's a climate shift step function caused by natural cycles 0.0%
173 Arctic Storm Caused the 2012 Record Sea Ice Minimum 0.0%
174 Climate 'Skeptics' are like Galileo 0.0%
175 0.0%
176 CO2 limits will make little difference 0.0%
177 IPCC human-caused global warming attribution confidence is unfounded 0.0%
178 Venus doesn't have a runaway greenhouse effect 0.0%
179 Animal agriculture and eating meat are the biggest causes of global warming 0.0%
180 IPCC ‘disappeared’ the Medieval Warm Period 0.0%
181 It's clouds 0.0%
182 A grand solar minimum could trigger another ice age 0.0%
183 Adapting to global warming is cheaper than preventing it 0.0%


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