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The IPCC lead authors are experts in their field, instructed to fairly represent the full range of the up-to-date, peer-reviewed literature. | The IPCC was tasked with reviewing peer-reviewed scientific literature and other relevant publications to provide information on the state of knowledge about climate change. | SUPPORTS |
When water temperatures become too high, coral becomes stressed and expels the algae, which leave the coral a bleached white color. | The loss of the colorful algae causes the coral to turn white. | SUPPORTS |
[Ice] is expanding in much of Antarctica, contrary to the widespread public belief that global warming is melting the continental ice cap. | The amount of surface warming in West Antarctica, while large, has not led to appreciable melting at the surface, and is not directly affecting the West Antarctic Ice Sheet's contribution to sea level. | NOT_ENOUGH_INFO |
In a paper published online this week in the Journal of Geophysical Research-Atmosphere, economics professor Ross McKitrick says the resulting discrepancies may be leading to an overstatement of the role of greenhouse gases in the atmosphere. | At a meeting of the American Geophysical Union (December 17, 2008), scientists detailed evidence in support of the controversial idea that the introduction of large-scale rice agriculture in Asia, coupled with extensive deforestation in Europe began to alter world climate by pumping significant amounts of greenhouse gases into the atmosphere over the last 1,000 years. | NOT_ENOUGH_INFO |
It’s not carbon dioxide, it’s not methane… Scientists estimate that somewhere between 75% and 90% of Earth greenhouse effect is caused by water vapor in clouds.” | By their percentage contribution to the greenhouse effect on Earth the four major gases are: water vapor, 36–70% carbon dioxide, 9–26% methane, 4–9% ozone, 3–7% It is not possible to assign a specific percentage to each gas because the absorption and emission bands of the gases overlap (hence the ranges given above). | NOT_ENOUGH_INFO |
So CO2 causes warming AND rising temperature causes CO2 rise. | Not only do increasing carbon dioxide concentrations lead to increases in global surface temperature, but increasing global temperatures also cause increasing concentrations of carbon dioxide. | SUPPORTS |
the world is barely half a degree Celsius (0.9 degrees Fahrenheit) warmer than it was about 35 years ago | About a billion years from now, all surface water will have disappeared and the mean global temperature will reach 70 °C (158 °F). | NOT_ENOUGH_INFO |
Earth about to enter 30-YEAR ‘Mini Ice Age’ | About a billion years from now, all surface water will have disappeared and the mean global temperature will reach 70 °C (158 °F). | NOT_ENOUGH_INFO |
Newspaper Article from 1922 Discusses Arctic Ocean Climate Change | Both the terms global warming and climate change were used only occasionally until 1975, when Wallace Smith Broecker published a scientific paper on the topic, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?". | NOT_ENOUGH_INFO |
Monckton appears to have cherry-picked temperature data from a few stations. | Canadian Climate Normals 1981–2010 Station Data. | NOT_ENOUGH_INFO |
Doubling the concentration of atmospheric CO2 from its pre-industrial level, in the absence of other forcings and feedbacks, would likely cause a warming of ~0.3°C to 1.1°C | The claim only highlights warming in the absence of any feedbacks, meaning it has limited relevance to the real behavior of the climate system. Even taken on its own, the CO2-only warming range given in this claim is lower than can be determined from physics. | REFUTES |
'On June 23, 1988, NASA scientist James Hansen testified before the House of Representatives that there was a strong "cause and effect relationship" between observed temperatures and human emissions into the atmosphere. | Hansen was invited by Rafe Pomerance to testify before the United States Senate Committee on Energy and Natural Resources on June 23, 1988. | NOT_ENOUGH_INFO |
Climate change isn't increasing extreme weather damage costs | Global losses reveal rapidly rising costs due to extreme weather-related events since the 1970s. | REFUTES |
The fact that so many studies on climate change don't bother to endorse the consensus position is significant because scientists have largely moved from what's causing global warming onto discussing details of the problem (eg - how fast, how soon, impacts, etc). | There is an extensive discussion in the scientific literature on what policies might be effective in responding to climate change. | NOT_ENOUGH_INFO |
A generous estimate of the energy generated by satellites is around 1 million times too small to cause global warming. | Global anthropogenic greenhouse gas emissions in 2010 were equivalent to 49 billion tonnes of carbon dioxide (using the most recent global warming potentials over 100 years from the AR5 report). | NOT_ENOUGH_INFO |
Neptune's orbit is 164 years so observations (1950 to present day) span less than a third of a Neptunian year. | The semi-major axis of Pluto's orbit varies between about 39.3 and 39.6 au with a period of about 19,951 years, corresponding to an orbital period varying between 246 and 249 years. | NOT_ENOUGH_INFO |
We’ll still be facing extreme heat, but at a far more manageable level than if we’d done nothing to halt climate change. | The effects of global warming include rising sea levels, regional changes in precipitation, more frequent extreme weather events such as heat waves, and expansion of deserts. | NOT_ENOUGH_INFO |
Overall Greenland is losing ice mass at an accelerating rate. | A 2018 systematic review study estimated that ice loss across the entire continent was 43 gigatons (Gt) per year on average during the period from 1992 to 2002, but has accelerated to an average of 220 Gt per year during the five years from 2012 to 2017. | NOT_ENOUGH_INFO |
It’s not carbon dioxide, it’s not methane… Scientists estimate that somewhere between 75% and 90% of Earth greenhouse effect is caused by water vapor in clouds.” | Excluding water vapor, about half of landfill gas is methane and most of the rest is carbon dioxide, with small amounts of nitrogen, oxygen, and hydrogen, and variable trace amounts of hydrogen sulfide and siloxanes. | NOT_ENOUGH_INFO |
[CO2] has increased 43 percent above the pre-industrial level so far | Measured atmospheric concentrations of carbon dioxide are currently 100 ppm higher than pre-industrial levels. | SUPPORTS |
“Underneath the permafrost there are sediments full of methane hydrates. | It also contains gas hydrates in places, which are a "potential abundant source of energy" but may also destabilize as subsea permafrost warms and thaws, producing large amounts of methane gas, which is a potent greenhouse gas. | SUPPORTS |
The scientific consensus on whether global warming is human caused is not 97 percent, it’s less than 1 percent. There is no way to measure the human impact on climate change. | The vast majority of climate scientists agree that anthropogenic factors are primarily responsible for climate change. Numerous scientific studies and summary reports demonstrate that natural and human influences on the climate can be studied and quantified. | REFUTES |
"There is no actual evidence that carbon dioxide emissions are causing global warming. | In the scientific literature, there is an overwhelming consensus that global surface temperatures have increased in recent decades and that the trend is caused mainly by human-induced emissions of greenhouse gases. | REFUTES |
"So recently the media picked up on the fact that CRU deleted the raw data for this important global temperature set long ago. | They were already working with the Met Office to obtain permissions to release the remaining raw data. | REFUTES |
Melting permafrost can release not just CO2, but also methane, a much stronger heat-trapping gas. | When the permafrost melts, it releases carbon in the form of carbon dioxide and methane, both of which are greenhouse gases. | SUPPORTS |
Days of near-100-degree-Fahrenheit temperatures cooked the Mountain West in early July, and a scorching heat wave lingered over the Pacific Northwest in early August.” | From July 4 to July 9, 2010, the majority of the American East Coast, from the Carolinas to Maine, was gripped in a severe heat wave. | NOT_ENOUGH_INFO |
"In 1999 New Scientist reported a comment by the leading Indian glaciologist Syed Hasnain, who said in an email interview with this author that all the glaciers in the central and eastern Himalayas could disappear by 2035. | That article was based on an email interview, and says that "Hasnain's four-year study indicates that all the glaciers in the central and eastern Himalayas could disappear by 2035 at their present rate of decline." | SUPPORTS |
according, again, to the official figures—during this past 10 years, if anything, mean global temperature, average world temperature, has slightly declined | Global temperature datasets show rising—not falling—temperatures over the last ten years. | REFUTES |
The North Pole is melting "a bit" but the South Pole is getting bigger. | The highest temperature yet recorded is 13 °C (55 °F), much warmer than the South Pole's record high of only −12.3 °C (9.9 °F). | NOT_ENOUGH_INFO |
I conclude that it must be ice accumulation, through evaporation of ocean water, and subsequent precipitation turning into ice. | precipitation, from water vapor condensing from the air and falling to the earth or ocean. | NOT_ENOUGH_INFO |
Most likely the primary control knob [on climate change] is the ocean waters and this environment that we live in. | These include processes such as variations in solar radiation, variations in the Earth's orbit, variations in the albedo or reflectivity of the continents, atmosphere, and oceans, mountain-building and continental drift and changes in greenhouse gas concentrations. | NOT_ENOUGH_INFO |
There is no empirical evidence that increasing greenhouse gases are the primary cause of Global Warming | During the late 20th century, a scientific consensus evolved that increasing concentrations of greenhouse gases in the atmosphere cause a substantial rise in global temperatures and changes to other parts of the climate system, with consequences for the environment and for human health. | REFUTES |
Those who contribute the least greenhouse gases will be most impacted by climate change. | However, damage to peatland contributes to 4% of global greenhouse gas emissions, and 8% of those caused by burning fossil fuels. | NOT_ENOUGH_INFO |
The Obama administration is "proposing to mine another 10 billion tons of Wyoming coal, which would unleash three times more carbon pollution than Obama's Clean Power Plan would even save through 2030." | The Obama administration designed the plan to lower the carbon dioxide emitted by power generators. | NOT_ENOUGH_INFO |
It seems scientists have noticed recently that quite a few planets in our solar system seem to be heating up a bit, including Pluto." | This could be caused by the interaction between the stellar wind and the planet's magnetosphere creating an electric current through the planet that heats it up causing it to expand. | NOT_ENOUGH_INFO |
"An article in Science magazine illustrated that a rise in carbon dioxide did not precede a rise in temperatures, but actually lagged behind temperature rises by 200 to 1000 years. | Recent warming is followed by carbon dioxide levels with only a 5 months delay. | REFUTES |
(Kerr 2007) points out that the sunlight-reflecting haze that cools much of the planet seems to have thinned over the past decade or so. | Conversely, haze in Titan's atmosphere contributes to an anti-greenhouse effect by reflecting sunlight back into space, cancelling a portion of the greenhouse effect and making its surface significantly colder than its upper atmosphere. | SUPPORTS |
The natural cycle adds and removes CO2 to keep a balance; humans add extra CO2 without removing any. | Since the industrial revolution, human activity has modified the carbon cycle by changing its components' functions and directly adding carbon to the atmosphere. | SUPPORTS |
Electricity rates are 40 percent higher in states that have required utility companies to use a certain amount of renewable energy such as solar power. | In addition to creating incentives for energy conservation, a carbon tax would put renewable energy sources such as wind, solar and geothermal on a more competitive footing, stimulating their growth. | NOT_ENOUGH_INFO |
nothing we can do to stop the Earth’s naturally occurring climate cycles. | The next ice age may be virtually upon us – a natural 100,000 year cycle which we are accelerating in many ways. | NOT_ENOUGH_INFO |
The projection that much of the Great Barrier Reef could perish within the next few decades could turn out to be too pessimistic, since other research has shown that some species of corals are surprisingly resilient to the stress from changing ocean temperatures. | In March 2017, the journal Nature published a paper showing that huge sections of an 800-kilometre (500 mi) stretch in the northern part of the reef had died in the course of 2016 due to high water temperatures, an event that the authors put down to the effects of global climate change. | REFUTES |
The sun has not warmed since 1970 and so cannot be driving global warming. | "Is the Sun causing global warming?". | NOT_ENOUGH_INFO |
While there are isolated cases of growing glaciers, the overwhelming trend in glaciers worldwide is retreat. | The Holocene glacial retreat is a geographical phenomenon that involved the global deglaciation of glaciers that previously had advanced during the Last Glacial Maximum. | NOT_ENOUGH_INFO |
The claim that 97 percent of scientists believe humans are causing climate change has been debunked by the "head" of the United Nations Intergovernmental Panel on Climate Change. | Of these, 97% agree, explicitly or implicitly, that global warming is happening and is human-caused. | NOT_ENOUGH_INFO |
Flights departing airports in the United States and its territories emitted about one-quarter (24%) of global passenger transport-related CO2, two-thirds of which came from domestic flights. | Currently, the aviation sector, including US domestic and global international travel, make approximately 1.6 percent of global anthropogenic GHG emissions per annum. | NOT_ENOUGH_INFO |
That humans are causing the rise in atmospheric CO2 is confirmed by multiple isotopic analyses. | Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century. | NOT_ENOUGH_INFO |
This growth stimulation occurs because CO2 is one of the two raw materials (the other being water) that are required for photosynthesis. | Plants require carbon dioxide to conduct photosynthesis. | SUPPORTS |
Small increases in average temperature translate to big increases in the number of extremely hot days, and those hot days have a big impact. | The area in which extremely hot summers are observed has increased 50-100 fold. | SUPPORTS |
While evidence that the earth’s orbital variations impact radiation levels and thus global temperatures does not of course mean that man is not in some way impacting the climate, studies like these highlight that the role man plays on the planet is dwarfed by natural phenomena utterly out of our control. | There are many interesting palaeoclimate studies that suggest that solar variability had an influence on pre-industrial climate. | NOT_ENOUGH_INFO |
Losing tropical forests is not somehow cheaper than putting up wind farms in the US or Sahara.” | In Central America, two-thirds of lowland tropical forests have been turned into pasture since 1950 and 40% of all the rainforests have been lost in the last 40 years. | NOT_ENOUGH_INFO |
Hundreds of flowers across the UK are flowering earlier now than any time in 250 years. | 22 January 2008. | NOT_ENOUGH_INFO |
The warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers. | Scientists use both direct and indirect observations of the climate, from Earth observing satellites and scientific instrumentation such as a global network of thermometers, to prehistoric ice extracted from glaciers. | NOT_ENOUGH_INFO |
Early 20th century warming is due to several causes, including rising CO2. | Decades ago, they correctly predicted how much Earth's temperature would rise due to increasing atmospheric CO2. | SUPPORTS |
Over time, climate becomes a net problem: by the 2070s, the UN Climate Panel finds that global warming will likely cause damage equivalent to 0.2 per cent to 2 per cent of global GDP. | Climate proxy records show that natural variations offset the early effects of the Industrial Revolution, so there was little net warming between the 18th century and the mid-19th century, when thermometer records began to provide global coverage. | NOT_ENOUGH_INFO |
Natural cycles superimposed on a linear warming trend can be mistaken for step changes, but the underlying warming is caused by the external radiative forcing. | AR4 describes warming and cooling effects on the planet in terms of radiative forcing — the rate of change of energy in the system, measured as power per unit area (in SI units, W/m²). | SUPPORTS |
Multiple lines of independent evidence indicate humidity is rising and provides positive feedback. | Similar experiments have found a preference for positive feedback, and the people who give it, over negative feedback. | NOT_ENOUGH_INFO |
It is expected the report will focus on required changes to the energy system, rather than forests. | Low emission development strategies for the land use sector can prioritize the protection of carbon-rich ecosystems to not only reduce emissions, but also to protect biodiversity and safeguard local livelihoods to reduce rural poverty - all of which can lead to more climate resilient systems, according to a report by the Low Emission Development Strategies Global Partnership (LEDS GP). | NOT_ENOUGH_INFO |
(Kerr 2007) points out that the sunlight-reflecting haze that cools much of the planet seems to have thinned over the past decade or so. | Earth appears as a blue dot primarily because of Rayleigh scattering of sunlight in its atmosphere. | NOT_ENOUGH_INFO |
It found the scientists' rigour and honesty are not in doubt, and their behaviour did not prejudice the IPCC's conclusions, though they did fail to display the proper degree of openness. | The report, issued on 18 February 2011, cleared the researchers and "did not find any evidence that NOAA inappropriately manipulated data or failed to adhere to appropriate peer review procedures". | SUPPORTS |
And in January, one out of five British children told pollsters they were having nightmares about climate change. | Regrettably, this creates the impression that scientific opinion is evenly divided or completely unsettled" Begley 2007: "polls found that 64 percent of Americans thought there was 'a lot' of scientific disagreement on climate change; only one third thought planetary warming was "mainly caused by things people do." | NOT_ENOUGH_INFO |
“Moreover, the ocean already contains so-called oxygen minimum zones, generally found in the middle depths. | Dead zones are hypoxic (low-oxygen) areas in the world's oceans and large lakes, caused by "excessive nutrient pollution from human activities coupled with other factors that deplete the oxygen required to support most marine life in bottom and near-bottom water. | SUPPORTS |
The long-term tide gauge datasets are all in agreement that there is no acceleration | Quantitative analysis of global data clearly demonstrates that sea level rise has accelerated. | REFUTES |
President Donald Trump sent a video message to Belgian citizens criticizing their government for being part of the Paris Climate Change Agreement. | He ended the Clean Power Plan, withdrew from the Paris Agreement on climate change mitigation, and urged for subsidies to increase fossil fuel production, calling man-made climate change a hoax. | NOT_ENOUGH_INFO |
Satellite transmissions are extremely small and irrelevant. | The relatively strong transmissions allowed the use of smaller (90 cm) dishes. | NOT_ENOUGH_INFO |
a marginally significant warming trend in the data over the past several years, erasing the temperature plateau that vexed climate alarmists have found difficult to explain. | The group also confirmed that over the past 50 years the land surface warmed by 0.911 °C, and their results closely matched those obtained from these earlier studies. | SUPPORTS |
“Sea level rise is global. | With continued melt and retreat they contribute to raising global sea levels. | NOT_ENOUGH_INFO |
"Pollution; none of us are supporting putting substances into the atmosphere or the waterways that might be pollutants, but carbon dioxide is not a pollutant. | In these modern designs, pollution from coal-fired power plants comes from the emission of gases such as carbon dioxide, nitrogen oxides, and sulfur dioxide into the air, as well a significant volume of wastewater which may contain lead, mercury, cadmium and chromium, as well as arsenic, selenium and nitrogen compounds (nitrates and nitrites). | REFUTES |
While urban areas are undoubtedly warmer than surrounding rural areas, this has had little to no impact on warming trends. | For North America and Europe, such practice could reduce earth warming trends. | NOT_ENOUGH_INFO |
the bushfires [in Australia] were caused by arsonists and a series of lightning strikes, not 'climate change' | The 2007 Kangaroo Island bushfires were a series of bushfires caused by lightning strikes on 6 December 2007 on Kangaroo Island, South Australia, resulting in the destruction of 95,000 hectares (230,000 acres) of national park and wilderness protection area. | NOT_ENOUGH_INFO |
The warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers. | For North America and Europe, such practice could reduce earth warming trends. | NOT_ENOUGH_INFO |
the concentration of carbon dioxide in Earth’s atmosphere has climbed to a level last seen more than 3 million years ago — before humans even appeared on the rocky ball we call home | It is possible that the concentration of atmospheric CO2was this high a little less than 3 million years ago, but it is certainly true that this was before the appearance of humans. | SUPPORTS |
The Little Ice Age ended as recently as 1850. | The Little Ice Age ended in the latter half of the 19th century or early in the 20th century. | SUPPORTS |
There are a myriad of other radiative forcings that affect the planet's energy imbalance. | Radiative forcing is a measure of how various factors alter the energy balance of the Earth's atmosphere. | SUPPORTS |
To claim that humidity is decreasing requires you ignore a multitude of independent reanalyses that all show increasing humidity. | When the moisture content remains constant and temperature increases, relative humidity decreases, but the dew point remains constant. | NOT_ENOUGH_INFO |
By 2050 there’s a scientific consensus that we reached the tipping point for ice sheets in Greenland and the West Antarctic | A study published in 2017 concluded that Greenland's peripheral glaciers and ice caps crossed an irreversible tipping point around 1997, and will continue to melt. | SUPPORTS |
Research has found a human influence on the climate of the past several decades ... | Human influence on the climate system is clear. | SUPPORTS |
94 percent of the carbon emissions which you so want to get rid of are caused by nature. | Land use change (mainly deforestation in the tropics) account for up to one third of total anthropogenic CO 2 emissions. | NOT_ENOUGH_INFO |
“The global reef crisis does not necessarily mean extinction for coral species. | The loss of coral reefs, which are predicted to go extinct in the next century, threatens the balance of global biodiversity, will have huge economic impacts, and endangers food security for hundreds of millions of people. | NOT_ENOUGH_INFO |
Top Scientist Hal Lewis Resigns Over Climate Change Corruption | A scientist named Bill Hingest, who is resigning from the N.I.C.E., warns Mark to get out. | NOT_ENOUGH_INFO |
While preventing global warming is relatively cheap, economists can't even accurately estimate the accelerating costs of climate damages if we continue with business-as-usual. | Researchers have warned that current economic modeling may seriously underestimate the impact of potentially catastrophic climate change and point to the need for new models that give a more accurate picture of potential damages. | NOT_ENOUGH_INFO |
The oceans are warming and moreover are becoming more acidic, threatening the food chain. | "Rising Acidity Is Threatening Food Web of Oceans, Science Panel Says". | SUPPORTS |
Multiple lines of evidence indicate Greenland's ice loss is accelerating and will contribute sea level rise in the order of metres over the next few centuries. | Estimates on future contribution to sea level rise from Greenland range from 0.3 to 3 metres (1 to 10 ft), for the year 2100. | SUPPORTS |
A number of independent studies using near-global satellite data find positive feedback and high climate sensitivity. | "High sensitivity of peat decomposition to climate change through water-table feedback". | NOT_ENOUGH_INFO |
Heatwaves occur in any climate, but we know that heatwaves are becoming much more likely due to climate change. | As the Earth's climate warms, we are seeing many changes: stronger, more destructive hurricanes; heavier rainfall; more disastrous flooding; more areas of the world experiencing severe drought; and more heat waves." | SUPPORTS |
Dropped weather stations actually show a slightly warmer trend compared to kept stations. | Winters are chilly and damp, and prevailing wind patterns that blow sea breezes offshore temper the moderating effects of the Atlantic Ocean; yet the Atlantic and the partial shielding from colder air by the Appalachian Mountains keep the city warmer in the winter than inland North American cities at similar or lesser latitudes such as Pittsburgh, Cincinnati, and Indianapolis. | NOT_ENOUGH_INFO |
[ocean acidification was ] First referenced in a peer-reviewed study in Nature in 2003 | A 2012 paper in the journal Science examined the geological record in an attempt to find a historical analog for current global conditions as well as those of the future. | NOT_ENOUGH_INFO |
Climate Change ‘Heat Records’ Are a Huge Data Manipulation | Climatology deals with the aggregate data that meteorology has collected. | NOT_ENOUGH_INFO |
More money is dedicated within the Department of Homeland Security to climate change than what's spent combating "Islamist terrorists radicalizing over the Internet in the United States of America." | The center works on the Internet's routing infrastructure (the SPRI program) and Domain Name System (DNSSEC), identity theft and other online criminal activity (ITTC), Internet traffic and networks research (PREDICT datasets and the DETER testbed), Department of Defense and HSARPA exercises (Livewire and Determined Promise), and wireless security in cooperation with Canada. | NOT_ENOUGH_INFO |
Increases in atmospheric CO2 followed increases in temperature. Therefore, CO2 levels could not have forced temperatures to rise. | A lag between the initiation of past warming due to other factors and rising CO2 does not mean mean that CO2 cannot have caused temperature to increase further. | REFUTES |
as continents rise after the overlying ice has melted | As the water passes through the bottom, it continues to drop in temperature; since it is highly pressurized at this point, the melting temperature is suppressed and the water becomes supercooled as it melts surrounding ice. | NOT_ENOUGH_INFO |
For example, we have a lower understanding of the effect of aerosols while we have a high understanding of the warming effect of carbon dioxide. | In 2000, Hansen advanced an alternative view of global warming over the last 100 years, arguing that during that time frame the negative forcing via aerosols and the positive forcing via carbon dioxide (CO 2) largely balanced each other out, and that the 0.74±0.18 °C net rise in average global temperatures could mostly be explained by greenhouse gases other than carbon dioxide, such as methane and chlorofluorocarbons. | REFUTES |
Lindzen and Choi’s paper is viewed as unacceptably flawed by other climate scientists. | It received considerable media coverage; 22 then- current or retired MIT professors promptly issued an open letter addressed to Trump saying that Lindzen’s petition doesn’t represent their views or those of the vast majority of other climate scientists. | SUPPORTS |
Global warming is driving major melting on the surface of Greenland’s glaciers and is speeding up their travel into the sea.” | Global warming could lead to an increase in freshwater in the northern oceans, by melting glaciers in Greenland, and by increasing precipitation, especially through Siberian rivers. | SUPPORTS |
In other words, there is as yet no incontrovertible proof either of the greenhouse effect, or its connection with alleged global warming. | "Robust findings" of the Synthesis report include: "Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level". | NOT_ENOUGH_INFO |
Greenland ice sheet won't collapse | On balance, the IPCC estimates −44 ± 53 Gt/yr, which means that the ice sheet may currently be melting. | NOT_ENOUGH_INFO |
IPCC human-caused global warming attribution confidence is unfounded. | The IPCC's attribution of recent global warming to human activities is a view shared by the scientific community, and is also supported by 196 other scientific organizations worldwide (see also: Scientific consensus on climate change). | REFUTES |
global warming ceased around the end of the twentieth century and was followed (since 1997) by 19 years of stable temperature | An example of such an episode is the slower rate of surface temperature increase from 1998 to 2012, which was dubbed the global warming hiatus. | REFUTES |
“Arctic land stores about twice as much carbon as the atmosphere. | The atmosphere of Mars consists of about 96% carbon dioxide, 1.93% argon and 1.89% nitrogen along with traces of oxygen and water. | NOT_ENOUGH_INFO |
The Massachusetts Bay Colony in 1635 experienced a Category 3 or 4 storm, with up to a 20-foot storm surge. | August 28, 1949, a category-4 hurricane struck West Palm Beach with maximum sustained winds of 150 mph (240 km/h), causing considerable damage. | NOT_ENOUGH_INFO |
a distressing number of the [West coast] fires are not accidents, and willful arson is the cause. | Rumors that the widespread wildfires burning in California, Oregon, and Washington were started by arsonists are unfounded and contradicted by documentation of other causes of ignition. | REFUTES |