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Humans are emitting 26 gigatonnes of CO2 into the atmosphere.
In the modern era, emissions to the atmosphere from volcanoes are approximately 0.645 billion tonnes of CO 2 per year, whereas humans contribute 29 billion tonnes of CO 2 each year.
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“In their award winning book, ‘Taken By Storm’ (2007), Canadian researchers Christopher Essex and Ross McKitrick explain: ‘Temperature is not an amount of something [like height or weight].
Lately, the temperature criterion has fallen out of the definition across the United States Bomb cyclone – A rapid deepening of a mid-latitude cyclonic low-pressure area, typically occurring over the ocean, but can occur over land.
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Scientists say the recent climate agreement negotiated in Paris is not remotely ambitious enough to forestall a significant melting of Greenland and Antarctica, though if fully implemented, it may slow the pace somewhat.”
A pair of studies in Nature have said that, as of 2017, none of the major industrialized nations were implementing the policies they had envisioned and have not met their pledged emission reduction targets, and even if they had, the sum of all member pledges (as of 2016) would not keep global temperature rise "well below 2 °C".
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"Many people think the science of climate change is settled.
"The work of the Intergovernmental Panel on Climate Change (IPCC) represents the consensus of the international scientific community on climate change science.
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While transient weather variability is playing a key role here, the widespread record warmth across the U.S. so far this year is part of a long-term trend toward more warm temperature records versus cold ones.
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.
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A key study published in the Journal of Climate this year by Bjorn Stevens of the Max Planck Institute for Meteorology in Hamburg, Germany, found that the cooling impact of sulfate emissions has held back global warming less than thought till now
International Council of Academies of Engineering and Technological Sciences (CAETS) in 2007, issued a Statement on Environment and Sustainable Growth: As reported by the Intergovernmental Panel on Climate Change (IPCC), most of the observed global warming since the mid-20th century is very likely due to human-produced emission of greenhouse gases and this warming will continue unabated if present anthropogenic emissions continue or, worse, expand without control.
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But Trenberth’s "lack of warming at the moment" has been going on at least a decade.
This was associated with a change of surface winds over the Pacific which had caused ocean heat to penetrate below 700m depth and had contributed to the apparent global warming hiatus in surface temperatures during the previous decade.
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the bushfires [in Australia] were caused by arsonists and a series of lightning strikes, not climate change
While authorities in Australia are investigating the source of some of the bushfires, this does not preclude other factors from being important for some aspects of these fires. For instance, themagnitudeof wildfires is controlled primarily by the conditions of the fuels.
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According to NASA, the globally averaged temperature of the land and ocean was 0.9˚C (1.62˚F) above the 20th century average.
The global average and combined land and ocean surface temperature, show a warming of 0.85 [0.65 to 1.06] °C, in the period 1880 to 2012, based on multiple independently produced datasets.
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“Although the extent of the summer sea ice after 2006 dropped abruptly to levels not expected until 2050, the predicted 67-per-cent decline in polar bear numbers simply didn’t happen.
The proportion of maternity dens on sea ice has changed from 62% between the years 1985 through 1994, to 37% over the years 1998 through 2004.
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The trend has been measured by a network of tidal gauges, many of which have been collecting data for over a century.
Earlier satellite measurements were previously slightly at odds with tide gauge measurements.
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97% of climate experts agree humans are causing global warming.
Of these, 97% agree, explicitly or implicitly, that global warming is happening and is human-caused.
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The rate of warming according to the data is much slower than the models used by the IPCC
The observed increase in hurricane intensity is larger than climate models predict for the sea surface temperature changes we have experienced.
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Scientists project that the Arctic will be ice-free in the summer of 2013.
"US Navy predicts summer ice free Arctic by 2016".
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The report confidently claims that when temperatures rise, “the reduction in premature deaths from cold are expected to be smaller than the increase in deaths from heat in the United States.
Heat is more likely to increase the risk of mortality in cities in the northern part of the country than in the southern regions of the country.
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Great Barrier Reef may perish by 2030s
"The Reef 2050 Plan".
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The intentional dimming of direct sunlight by aircraft dispersed particles, a form of global warming mitigation known as “Solar Radiation Management”, has and is causing catastrophic damage to the planet’s life support systems.
Aircrafts produce contrails when water vapor from jet exhaust condenses at high altitudes. Scientists agree that there is no evidence of chemtrails or solar geoengineering.
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We simply could never release enough CO2 into the atmosphere to cause the pH to go below 7 [the point in the pH scale at which a solution becomes acidic].”
Also, the Intergovernmental Panel on Climate Change (IPCC) writes in their Climate Change 2007: Synthesis Report: "The uptake of anthropogenic carbon since 1750 has led to the ocean becoming more acidic with an average decrease in pH of 0.1 units.
REFUTES
However, since 1998, little warming has occurred while carbon dioxide emissions continue to increase.
The Kyoto Protocol is an international treaty which extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that (part one) global warming is occurring and (part two) it is extremely likely that human-made CO2 emissions have predominantly caused it.
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The IPCC simply updated their temperature history graphs to show the best data available at the time.
These studies were widely presented as demonstrating that the current warming period is exceptional in comparison to temperatures between 1000 and 1900, and the MBH99 based graph featured in publicity.
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“It’s horrifying that we’d lose our biodiversity to avert climate change.
"Ecosystems and species are vulnerable to climate change and other stresses (as illustrated by observed impacts of recent regional temperature changes) and some will be irreversibly damaged or lost."
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This means that the world is now 1C warmer than it was in pre-industrial times
The planet is now 0.8 °C warmer than in pre-industrial times.
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But there is also good data showing sea levels
Between 1993 and 2017, the global mean sea level rose on average by 3.1 ± 0.3 mm per year, with an acceleration detected as well.
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The warming will slow to a potentially manageable pace only when human emissions are reduced to zero.
Climate change can be mitigated through the reduction of greenhouse gas emissions or the enhancement of the capacity of carbon sinks to absorb greenhouse gases from the atmosphere.
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CO2 constitutes 80% of the non-condensing greenhouse gas forcing.
Overall, developed countries accounted for 83.8% of industrial CO 2 emissions over this time period, and 67.8% of total CO 2 emissions.
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The idea that the much smaller carbon dioxide cycle is now controlling the water cycle is not very likely.
This would be followed by a buildup in carbon dioxide, causing an urgent feeling of a need to breathe, and if this cycle is not broken, panic and drowning are likely to follow.
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Ice berg melts, ocean level remains the same.
There is a threshold in surface warming beyond which a partial or near-complete melting of the Greenland ice sheet occurs.
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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.
Increased concentrations of gases such as CO 2 (~20%), ozone and N 2O are external forcing on the other hand.
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The amount of land we use for meat — humankind’s biggest use of land — has declined by an area nearly as large as Alaska
As of 2010[update], 30% of Earth's ice- and water-free area was used for producing livestock, with the sector employing approximately 1.3 billion people.
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Tallahassee reduced its carbon intensity by roughly 40 percent.
For example, by 2006 the decreased biomass in bottomland hardwood forests contributed an amount of carbon which equated to roughly 140% of the net annual U.S. carbon sink in forest trees.
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This requires us to work towards avoiding catastrophic possibilities rather than looking at probabilities, as learning from mistakes is not an option when it comes to existential risks.
The measure of uncertainty refers only to the probabilities assigned to outcomes, while the measure of risk requires both probabilities for outcomes and losses quantified for outcomes.
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It is expected the report will focus on required changes to the energy system, rather than forests.
There was high agreement and much evidence that a substantial fraction of these mitigation costs may be offset by benefits to health as a result of reduced air pollution, and that there would be further cost savings from other benefits such as increased energy security, increased agricultural production, and reduced pressure on natural ecosystems as well as, in certain countries, balance of trade improvements, provision of modern energy services to rural areas and employment.
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However, satellite and surface measurements observe an enhanced greenhouse effect at the wavelengths that CO2 absorb energy.
Absorption of infrared light at the vibrational frequencies of atmospheric carbon dioxide traps energy near the surface, warming the surface and the lower atmosphere.
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What you were not told was that the data that triggered this record is only available back to the late 1970s.
The Car of Tomorrow was first tested in December 2005, and was first revealed to the public in 2006, with numerous safety improvements being touted.
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‘This study goes beyond statistical correlations and explores a specific process that can plausibly explain how enhanced high-latitude warming trends may trigger remote weather impacts,’ he said.
Ordinarily, regressions reflect "mere" correlations, but Clive Granger argued that causality in economics could be tested for by measuring the ability to predict the future values of a time series using prior values of another time series.
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During a state House debate on a jobs and energy bill this week, Democrats offered an amendment that would put the Legislature on record saying that climate change is real and that humans are causing it.
Stabenow's proposed amendment to keep the Environmental Protection Agency from regulating greenhouse gas emissions for two years also drew criticism.
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Unprecedented climate change has caused sea level at Sydney Harbour to rise approximately 0.0 cm over the past 140 years.
18 January 2019.
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Empirical measurements of the Earth's heat content show the planet is still accumulating heat and global warming is still happening.
"Evidence is now 'unequivocal' that humans are causing global warming – UN report".
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90 percent of the world’s glaciers are growing.
The overall gain or loss of ice from the East Antarctic Ice Sheet is still being investigated. Recently improved satellite-based methods for measuring ice mass offer more accurate estimates, which do not corroborate the claim that this ice sheet is growing.
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Snowfall is increasing in the fall and winter in the Northern Hemisphere and North America with many records being set.
Snowfall records were confirmed all over the Midwest and the Northeast, especially around the Great Lakes.
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There isn’t yet any empirical evidence for their claim that greenhouse gases even cause temperatures to increase.
It is an unequivocal fact that Earth’s climate has warmed over the past century. Also, the conclusion that the human-caused increase of greenhouse gases is causing warming is supported by a wide range of empirical data.
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While it's true that any single country's CO2 emissions reductions will make little difference, only if every nation agrees to limit CO2 emissions can we achieve significant cuts on a global scale.
The 36 countries that were committed to emission reductions only accounted for 24% of the global greenhouse gas emissions in 2010.
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Human-produced carbon might be one of the factors [of climate change], but there’s simply no evidence that it is a significant one.
Seventy-five of 77 believed that human activity is a significant factor in changing mean global temperatures.
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At present, climate forecasts even as little as six weeks ahead can be diametrically the opposite of what actually occurs, even if the forecasts are limited to a small region of the planet.'
These uncertainties limit forecast model accuracy to about six days into the future.
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nothing we can do to stop the Earth’s naturally occurring climate cycles.
Shifting from meat-intensive diets to largely plant-based diets in order to help mitigate biodiversity loss and climate change.
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Cooks ’97% consensus’ disproven by a new peer
In November 2019, his survey of over 11,600 peer-reviewed articles published in the first seven months of 2019 showed that the consensus had reached 100%.
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We’ll still be facing extreme heat, but at a far more manageable level than if we’d done nothing to halt climate change.
Many regions have probably already seen increases in warm spells and heat waves, and it is virtually certain that these changes will continue over the 21st century.
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But despite [the Gulf Stream], the summer of 2018 looks set to be one of the hottest on record.
These two processes produce water that is denser and colder (or, more precisely, water that is still liquid at a lower temperature).
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The most recent ocean measurements show consistent warming.
The warming evident in the instrumental temperature record is consistent with a wide range of observations, documented by many independent scientific groups; for example, in most continental regions the frequency and intensity of heavy precipitation has increased.
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Temperature errors in the Great Lakes region are not used in any global temperature records.
The Siple Dome (SD) had a climate event with an onset time that is coincident with that of the Little Ice Age in the North Atlantic based on a correlation with the GISP2 record.
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Arctic sea ice has been steadily thinning, even in the last few years while the surface ice (eg - sea ice extent) increased slightly.
The Arctic ice pack is thinning, and a seasonal hole in the ozone layer frequently occurs.
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Once the atmosphere reaches a saturation point, additional input of CO2 will not really have any major impact.
Other scientists were initially sceptical and believed the greenhouse effect to be saturated so that adding more CO 2 would make no difference.
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In fact, human emit 26 gigatonnes of CO2 per year while CO2 in the atmosphere is rising by only 15 gigatonnes per year - much of human CO2 emissions is being absorbed by natural sinks.
Presently, oceans are CO2 sinks, and represent the largest active carbon sink on Earth, absorbing more than a quarter of the carbon dioxide that humans put into the air.
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Solar panels drain the sun's energy.
Photovoltaic solar panels absorb sunlight as a source of energy to generate direct current electricity.
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The statement that so-called greenhouse gases, especially CO2, contribute to near-surface atmospheric warming is in glaring contradiction to well-known physical laws relating to gas and vapour, as well as to general caloric theory.'
The changes in temperature have been associated with increasing concentrations of atmospheric carbon dioxide (CO 2) and other GHGs in the atmosphere."
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Satellite measurements of infrared spectra over the past 40 years observe less energy escaping to space at the wavelengths associated with CO2.
The LWIR (8–15 μm) region is especially useful since some radiation at these wavelengths can escape into space through the atmosphere.
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“In their award winning book, ‘Taken By Storm’ (2007), Canadian researchers Christopher Essex and Ross McKitrick explain: ‘Temperature is not an amount of something [like height or weight].
This upper bound is called the "maximum potential intensity", v p {\displaystyle v_{p}} , and is given by v p 2 = C k C d T s − T o T o Δ k {\displaystyle v_{p}^{2}={\frac {C_{k}}{C_{d}}}{\frac {T_{s}-T_{o}}{T_{o}}}\Delta k} where T s {\displaystyle T_{s}} is the temperature of the sea surface, T o {\displaystyle T_{o}} is the temperature of the outflow ([K]), Δ k {\displaystyle \Delta k} is the enthalpy difference between the surface and the overlying air ([J/kg]), and C k {\displaystyle C_{k}} and C d {\displaystyle C_{d}} are the surface exchange coefficients (dimensionless) of enthalpy and momentum, respectively.
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Contemporary Global Warming placed in geological context.
"Global warming in the context of the Little Ice Age".
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The Ozone Layer stops UV radiation from entering our atmosphere.
Although the concentration of the ozone in the ozone layer is very small, it is vitally important to life because it absorbs biologically harmful ultraviolet (UV) radiation coming from the sun.
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Short term cooling over the last few years is largely due to a strong La Nina phase in the Pacific Ocean and a prolonged solar minimum.
La Niña is the positive and cold phase of the El Niño–Southern Oscillation, and is associated with cooler-than-average sea surface temperatures in the central and eastern tropical Pacific Ocean.
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El Niño drove record highs in global temperatures suggesting rise may not be down to man-made emissions.
This acceleration is due mostly to human-caused global warming, which is driving thermal expansion of seawater and the melting of land-based ice sheets and glaciers.
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Venus very likely underwent a runaway or ‘moist’ greenhouse phase earlier in its history, and today is kept hot by a dense CO2 atmosphere.
It may have had water oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.
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They were going to be gone by now, but now they're setting records
Lennon said, "It's a company we're setting up, involving records, films, and electronics, and – as a sideline – manufacturing or whatever.
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At four degrees, the deadly European heat wave of 2003, which killed as many as 2,000 people a day, will be a normal summer.
For comparison, the 2003 European heat wave killed an estimated 35,000–70,000 people, with temperatures slightly less than in India and Pakistan.
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The idea that climate change is new or is caused by Humans is nonsense.
Many lines of evidence have enabled scientists to conclude that humans are responsible for global warming. Physics dictates that increased concentrations of greenhouse gases in the atmosphere trap additional heat in Earths climate system, and human-caused emissions of greenhouse gases have increased those concentrations. Climate has changed in the past for a number of reasons, and studying those events helps scientists understand the way the climate system works.
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The 30 most costly hurricanes in U.S. history (according to federal data from January) show no increase in intensity over time.
The extremely powerful hurricane continued to intensify, with maximum sustained winds peaking at 180 mph (285 km/h) near 18:00 UTC on September 5.
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satellites confirmed measurements from ground stations show a considerable, and naturally-occurring, global brightening from 1983-2001 (Pinker et al., 2005).
"A Revisit of Global Dimming and Brightening Based on the Sunshine Duration".
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Pluto experiences drastic season changes due to an elliptical orbit (that takes 250 Earth years).
Like Uranus, Pluto rotates on its "side" in its orbital plane, with an axial tilt of 120°, and so its seasonal variation is extreme; at its solstices, one-fourth of its surface is in continuous daylight, whereas another fourth is in continuous darkness.
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NOAA’s analysis found last month was the 3rd-warmest April on record globally.
21 July The latest global analysis of temperature data from NOAA shows that the first half of 2015 was the hottest such period on record, at 0.85 °C (1.53 °F) above the 20th century average, surpassing the previous record set in 2010 by 0.09 °C (0.16 °F).
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South Australia is winning: it has the most unreliable grid in the world outside Africa and the most expensive electricity.
South Australia has the lead over other Australian states for its commercialisation and commitment to renewable energy.
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In truth, the overwhelming majority of climate-research funding comes from the federal government and left-wing foundations.
Organizations such as the libertarian Competitive Enterprise Institute, as well as conservative commentators, have challenged IPCC climate change scenarios, funded scientists who disagree with the scientific consensus, and provided their own projections of the economic cost of stricter controls.
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At least close to the new spot and to the equator, nothing less than global warming is expected"
In the tropics the net effect is to produce a significant warming, while at latitudes closer to the poles a loss of albedo leads to an overall cooling effect.
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CO2 levels are measured by hundreds of stations scattered across 66 countries which all report the same rising trend.
The Integrated Carbon Observation System (ICOS) continuously releases data about CO 2 emissions, budget and concentration at individual observation stations.
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Sending oscillating microwaves from an antenna inside a vacuum through an electromagnetic field through a dielectric material, such as water, creates radio frequency heating at the molecular level
Dielectric heating, also known as electronic heating, radio frequency heating, and high-frequency heating, is the process in which a radio frequency (RF) alternating electric field, or radio wave or microwave electromagnetic radiation heats a dielectric material.
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A cold day in Chicago in winter has nothing to do with the trend of global warming.
The lake also provides another positive effect: moderating Chicago's climate, making waterfront neighborhoods slightly warmer in winter and cooler in summer.
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Concentrated in the atmosphere, these gases do not allow the warmth of the sun’s rays reflected by the earth to be dispersed in space.
This last phenomenon is known as the greenhouse effect: trace molecules within the atmosphere serve to capture thermal energy emitted from the ground, thereby raising the average temperature.
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Through decades of research, it has become clear that human civilization, roughly 6,000 years old, developed during an unusually stable period for global sea levels.
Humans began to exhibit evidence of behavioral modernity at least by about 100-70,000 years ago and (according to recent evidence) as far back as around 300,000 years ago, in the Middle Stone Age, (with some features of behavioral modernity possibly beginning earlier, and possibly in parallel with evolutionary brain globularization in H. sapiens).
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The Review concluded that CRU's actions were normal and did not threaten the integrity of peer review.
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".
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As a result, the planet as a whole is becoming less reflective and absorbing more sunlight, which is accelerating global warming.
In the tropics the net effect is to produce a significant warming, while at latitudes closer to the poles a loss of albedo leads to an overall cooling effect.
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Global warming leads to much quicker spread of the Zika virus because the increased temperature, "makes mosquitoes mature faster, . . .
Flooding creates more standing water for mosquitoes to breed; as well, shown that these vectors are able to feed more and grow faster in warmer climates.
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The first adjustment changed how the temperature of the ocean surface is calculated, by replacing satellite data with drifting buoys and temperatures in ships’ water intake.
Both moored buoys and drifting buoys (drifting in the open ocean currents) are used.
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By regulating the Earth’s cloud cover, the Sun can turn the temperature up and down. ...
These variations can affect global average surface temperature by redistributing heat between the deep ocean and the atmosphere and/or by altering the cloud/water vapor/sea ice distribution which can affect the total energy budget of the earth.
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Ocean acidification is the terrifying threat whereby all that man-made CO2 we’ve been pumping into the atmosphere may react with the sea to form a sort of giant acid bath.
The ocean would not become acidic even if it were to absorb the CO2 produced from the combustion of all fossil fuel resources.
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[Wind energy] is a more expensive way of producing energy than the alternative.
"Renewable energy now cheaper than new fossil fuels in Australia".
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Pluto's climate change over the last 14 years is likely a seasonal event.
Each planet therefore has seasons, changes to the climate over the course of its year.
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The human contribution to global warming was about 0.01°C.
Current pledges made as part of the Paris Agreement would lead to about 3.0 °C of warming at the end of the 21st century, relative to pre-industrial levels.
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the Great Barrier Reef is in fine fettle
The Queensland "shark control" program uses shark nets and drum lines with baited hooks to kill sharks in the Great Barrier Reef – there are 173 lethal drum lines in the Great Barrier Reef.
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There are already more American jobs in the solar industry than in coal mining.
Cerrejón directly employs 4,600 workers, with a further 3,800 employed by contractors.
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The Obama administration's "own Environmental Protection Agency" has said its Clean Power Plan "will have a marginal impact on climate change."
According to the League of Conservation Voters in 2015, the Clean Power Plan "established the first national limits on carbon pollution from existing power plants—our nation's single largest source of the pollution fueling climate change" and was "the biggest step" the United States had "ever taken to address climate change."
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For decades horticulturalists have pumped carbon dioxide into glasshouses to increase yields.
Many commercial glass greenhouses or hothouses are high tech production facilities for vegetables, flowers or fruits.
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If CO2 was so terrible for the planet, then installing a CO2 generator in a greenhouse would kill the plants.
Since the Industrial Revolution anthropogenic emissions – primarily from use of fossil fuels and deforestation – have rapidly increased its concentration in the atmosphere, leading to global warming.
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Statistical analysis of the rate of warming over different periods find that warming from 1970 to 2001 is greater than the warming from both 1860 to 1880 and 1910 to 1940.
Multiple independently produced instrumental datasets confirm that the 2009–2018 decade was 0.93 ± 0.07 °C warmer than the pre-industrial baseline (1850–1900).
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Global warming is causing snow to disappear.
Surface temperature increases are greatest in the Arctic, which has contributed to the retreat of glaciers, permafrost, and sea ice.
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Less than half of published scientists endorse global warming.
Nearly all publishing climate scientists (97–98%) support the consensus on anthropogenic climate change, and the remaining 3% of contrarian studies either cannot be replicated or contain errors.
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The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950.
The warmest month on record is July 1999, with a mean temperature of 81.4 °F (27.4 °C).
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Also found was that the correlation between solar activity and global temperatures ended around 1975, hence recent warming must have some other cause than solar variations.
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.
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cold deaths actually occur during moderate temperatures
The first phase lasted only from April 2010 to June 2010, and caused only moderate above average temperatures in the areas affected.
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Clouds provide negative feedback.
But if low clouds decrease, or if high clouds increase, the feedback is positive.
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Ice mass loss is occuring at an accelerated rate in Greenland, Antarctica and globally from inland glaciers.
"A tipping point in refreezing accelerates mass loss of Greenland's glaciers and ice caps".
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The report confidently claims that when temperatures rise, “the reduction in premature deaths from cold are expected to be smaller than the increase in deaths from heat in the United States.
The 10th Emissions Gap Report issued by the United Nations Environment Programme (UNEP) predicts that if emissions continue to increase at the same rate as they have in 2010–2020, global temperatures would rise by as much as 4° by 2100.
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