Sentences with phrase «causing fluctuations in temperatures»

While it is theoretically possible for human and animal activities to affect the climate on Earth, the main factor causing fluctuations in temperatures on this planet, as on Mars, is variability in energy output from the Sun.

Not exact matches

It is entirely likely that causes such as fluctuations in the sun's intensity and volcanic eruptions may have contributed to a change in the global atmospheric temperature.
Opening the oven door during the cake baking time can cause drafts and fluctuations in the oven temperature.
Although they're mainly setting out to scaremonger and sell papers, the tabloids are right that, as climate change causes fluctuations in weather, the temperature is becoming bitterer in those winter months.
It also causes the fluctuation is hormones and body temperature, leading to the sleep fighting in babies.
Climate change is having a dramatic impact on Earth's biodiversity, by causing rapid fluctuations in temperature and precipitation that alter species» environments.
Light bends anytime it passes through air, but when the air temperature varies dramatically over a short distance, causing it to have great fluctuations in density, it can bend light so much that a mirage occurs.
Color variations in an image of the cosmic microwave background radiation depict temperature fluctuations caused by seeds of matter that eventually became galaxies.
Physicists believe that the slight temperature variations in the microwave background were caused by quantum fluctuations in the early universe.
While 2014 temperatures continue the planet's long - term warming trend, scientists still expect to see year - to - year fluctuations in average global temperature caused by phenomena such as El Niño or La Niña.
El Niño is a weather pattern characterized by a periodic fluctuation in sea surface temperature and air pressure in the Pacific Ocean, which causes climate variability over the course of years, sometimes even decades.
While the overall rise in average temperature of the Atlantic is caused by greenhouse gases, this study examines the fluctuations occurring within this human - related trend.
Suppose also that — DESPITE THIS STABILIZING MECHANISM some as - yet unknown ocean circulation cycle operates that is the sole cause of the Holocene centennial scale fluctuations, and that this cycle has reversed and is operating today, yielding a temperature change that happens to mimic what models give in response to radiative forcing changes.
The Physiology of Body Temperature While exercise may cause a temporary increase in body temperature, normal body temperature fluctuation in dogs and cats is typically less than 4 °F over a 24 - hTemperature While exercise may cause a temporary increase in body temperature, normal body temperature fluctuation in dogs and cats is typically less than 4 °F over a 24 - htemperature, normal body temperature fluctuation in dogs and cats is typically less than 4 °F over a 24 - htemperature fluctuation in dogs and cats is typically less than 4 °F over a 24 - hour period.
Here we show that fluctuations in Antarctic Ice Sheet discharge caused by relatively small changes in subsurface ocean temperature can amplify multi-centennial climate variability regionally and globally, suggesting that a dynamic Antarctic Ice Sheet may have driven climate fluctuations during the Holocene.
By the way, which Bush policy was it that caused temperature fluctuations in the 1500s to wipe out vineyards in England?
Common sense says that the sun causes daily / yearly temperature fluctuations, and changes in the sun and Milankovitch factors supposedly cause millennial ice - age fluctuations.
Suppose also that — DESPITE THIS STABILIZING MECHANISM some as - yet unknown ocean circulation cycle operates that is the sole cause of the Holocene centennial scale fluctuations, and that this cycle has reversed and is operating today, yielding a temperature change that happens to mimic what models give in response to radiative forcing changes.
The fluctuations in the sun's activity are causing variations of 0.1 or 0.2 °C in global temperature in the last thousand years (e.g. at the Maunder Minimum of solar activity in the years 1645 to 1715).
«research must continue to find and establish the real causes and the true trends in global temperature change that may be present behind the natural fluctuations
Which again suggests that global temperature is partially the cause, even of the short - term fluctuations in AMO, not the other way around.
This inertia makes the building act like a thermal flywheel, reducing fluctuations in temperature and causing the house to require very little supplemental heat to maintain that ideal temperature.
Vaughan Pratt said,» How could tiny fluctuations in ocean temperatures cause humans to change their power consumption to such an enormous degree it would be visible above the huge noise of the 20x larger natural emissions of CO2?»
That paradigm is all about tiny fluctuations in forcing causing large changes in temperature, a recipe for instability.
The temperature of the troposphere is constantly being affected by variations in the rate of energy flow from the oceans driven by internal ocean variability, possibly caused by temperature fluctuations along the horizontal route of the thermohaline circulation and by variations in energy flow from the sun that affect the size (and thus density) of the atmosphere and the rate of energy loss to space.
Any expansion, or contraction in the crust, which is about 25 miles thick, caused by fluctuations in the atmospheric temperatures would be negligable.
«We evaluate to what extent the temperature rise in the past 100 years was a trend or a natural fluctuation and analyze 2249 worldwide monthly temperature records from GISS (NASA) with the 100 - year period covering 1906 - 2005 and the two 50 - year periods from 1906 to 1955 and 1956 to 2005... The data document a strong urban heat island eff ect (UHI) and a warming with increasing station elevation... About a quarter of all the records for the 100 - year period show a fall in temperatures... that the observed temperature records are a combination of long - term correlated records with an additional trend, which is caused for instance by anthropogenic CO2, the UHI or other forcings... As a result, the probabilities that the observed temperature series are natural have values roughly between 40 % and 90 %, depending on the stations characteristics and the periods considered.»
Thus, the increase in the surface temperature at sea level caused by doubling of the present - day CO2 concentration in the atmosphere will be less than 0.01 °C, which is negligible in comparison with natural temporal fluctuations of global temperature.
«Global warming is expected to cause extreme weather events, which may, in turn, result in large day - to - day fluctuations in temperature,» said Hedvig Andersson, a cardiology researcher at the University of Michigan.
Reports show the ocean's unique ecosystems are adapting to fluctuation in water temperatures likely caused by global warming, but increasing acidic levels may prove fatal for the world's coral reefs.
The climate has changed many times in the geologic past due to natural causes — including volcanic activity, changes in the sun's intensity, fluctuations in Earth's orbit, and other factors — but none of these can account for the current rise in global temperatures.
Such fluctuations in surface temperature may well be caused by autonomous (non-feedback) variations in clouds, acting as a forcing but not modelled as such.
As I have said a million times on this website and will probably have to say a million times more, the amplification of temperature trends or fluctuations as you go up in the tropical troposphere is NOT a prediction specific to AGW as the mechanism causing the warming.
The research appears to indicate that the short - term fluctuations in solar activity, though they discernibly cause the short - term cycles global temperatures in a manner that the monotonic increase in CO2 manifestly does not, are absolutely predictive of global temperature change on all timescales provided that the time - integral of the solar - activity change is taken.
The natural variability of the climate can cause considerable fluctuation in global temperatures year on year, in spite of an overall upward trajectory.
The IPCC * itself * acknowledges that there has been no such warming now for the last 16 - 17 years; that no dramatic imminent change is seen to that for the next couple of years at least; that the previous spell of 15 years or so was precisely the duration of warming that underlay so much of the evidence cited for its alarms of the long and terrible global trend if forecast; that not a single model the IPCC had or has seems to have come even close to predicting what we've now seen; that the IPCC can only suggest possible explanations for all this so logically meaning it can have no reason to believe that whatever is causing it isn't going to continue forever; that more and more studies are coming in attributing global temperatures not to CO2 but instead other things such as solar fluctuations; that a number of predictions are now coming in that in fact say we are now in for a lengthy period of * cooling.
These fluctuations cause changes in ocean surface temperature that in turn affect Earth's overall climate.
Random daily fluctuations in radiative forcing (e.g., in low cloud cover) cause LONG TERM variability in ocean temperatures....
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