Sentences with phrase «warming trend began»

Consequently, any correlation between sun and climate ended in the 1970's when the modern global warming trend began.

The recent warming trend began around 1993 and includes a couple of big El Ninos.

When I say recovery from the Little Ice Age in some sense «explains» global warming, I mean to say that the current warming trend began when the LIA ended and has been proceeding more or less apace ever since.

The global dimming trend reversed around 1990 - 15 years after the global warming trend began in the mid 1970's.

Inspecting one of the (many) graphs tracking oceanic warming, I noticed a steep upward trend roughly around 2000, 21 years after 1979, when a steep warming trend began in the surface temps.

In 1975 a strong warming trend began and in 1988 James Hansen went to Congress and made a big deal about a warming period of just 13 years.

This means that when modern global warming trend began in the 1970's, the correlation between sun and climate broke down.

About 15,000 years ago, as rising seas submerged the land bridge and a warming trend began to melt the glaciers covering North America, people swept rapidly into both North and South America.

The trend in the southern hemisphere shows a clearer warming trend beginning around the turn of the century, but it is still very uneven.The size of the observed warming is compatible with what climate models suggest should have resulted from past GHG emissions.

The grand mistake of the climate catastrophists was using an instrument network primarily located in industrialized NH locations and mistaking a natural warming trend beginning in the 1970 - 1980 timeframe with anthropogenic warming.

Not exact matches

These fluctuations superimpose the general global warming trend since the beginning of industrialization and thus complicate the accurate determination of human influence on the climate.

Nonetheless, this current, countercyclical warming trend will likely continue — potentially exceeding that earlier warming — unless greenhouse gas levels begin to come back down.

New research shows that the current drought plaguing the American West is likely the beginning of a new trend brought on by global warming.

Scientists can confidently say that Earth is warming due to greenhouse gas emissions caused by humans, but data on climate trends over the Antarctic and the surrounding Southern Ocean only go back to 1979 when regular satellite observations began.

«We conclude there has been no reduction in the global warming trend of 0.15 (to) 0.20 ºC (per) decade that began in the late 1970s.»

DUMBING DOWN In search of a global explanation for our cranial downsizing, some scientists have pointed to a warming trend in the earth's climate that also began 20,000 years ago.

to declare during the hearing that «Congress must begin to consider how we are going to slow or halt that warming trend.»

The point at which a trend becomes clear within the average temperature data for a given region — known as the «time of emergence» — depends on when the source of the warming begins, how fast it happens and the amount of background «noise» obscuring the signal.

This means that, in the last 100 years, the Earth's temperature has reversed a long - term cooling trend that began around 5000 years ago to become near the warmest temperatures during the last 11,000 years.

I love this trend, which began last year, because it is comfortable, fashionable and warm!

I think volcanic forcing is on a warming trend, because volcanic activity is weighted towards the beginning of the 30 year period.

Global warming occurred both at the beginning and at the end of the 20th century, but a cooling trend is seen from about 1940 to 1975.

Streamflow data supports warming by showing earlier in the year snowmelt runoff trends on rivers in the Upper Midwest and northern Great Plains, beginning in the 1970s and continuing to recent.

A slower warming rate will occur in the second half of the century, assuming that the climate forcing growth rate begins to trend downward before 2050.

However, at least with NASA GISS, it would appear that there is no statistical basis as of yet to claim that the trend in warming has reversed itself, slowed or accelerated from what it was beginning in 1975.

At the time of his research, global warming was a fringe idea and the warming trend had scarcely even begun.

From the beginning, many of the complaints about Mann's work were more about how it was appropriated by others than the research itself; the first paper of his identifying a «hockey stick» pattern to temperatures over the last millennium, in 1999, was laced with caveats in describing the distinct sharp recent warming trend.

Yet after all that, here you are, saying things like «Looks like an oceanic warming trend corresponding to the atmospheric warming trend from 1979 through 1998 begins around 2000, suggesting a delay of ca. 21 years.»

Both the Microwave Sounding Unit (MSU) satellite (analyzed by the University of Alabama in Huntsville by John Christy and Roy Spencer) and weather balloon data (trends reported by a number of researchers, notably Jim Angell at NOAA) have failed to show significant warming since the satellite record began in late 1978, even though the surface record has been rising at its fastest pace (~ 0.15 C / decade) since instrumental records began.

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

Scientists who study the warming seas and complicated climate and ice trends around Antarctica got a big jolt in recent days as yet another great fringing, floating ice shelf jutting from the Antarctic Peninsula began to disintegrate.

If, for example, we were to create a piece-wise continuous trend keeping your own trend, we'd find the 0.17 C decadal warming trend from your starting point preceded by an estimated warming of equal magnitude in the combined 125 prior years (beginning at a time where only 1/4 of the present day coverage existed, thus placing the entire 125 year warming more or less within the margin of statistical insignificance).

MMTS increases the trend slightly beginning in 1985 by smudging the temps higher by 0.25 F. Every little bit of manufactured warming helps appears to be the motto.

Bertrand was investigating the effect of solar and volcanic influence on climate and concluded «these are clearly not sufficient to explain the observed 20th century warming and more specifically the warming trend which started at the beginning of the 1970s».

We are also in the midst of a natural warming trend that began about 1850, as we emerged from a four - hundred - year cold spell known as the «Little Ice Age.»

For me, that begins with people accepting that there is no hiding place left in the science — the overwhelming consensus of the vast body of scientists that study climate is that the trends we are seeing in the air, the oceans and in our ecosystems are entirely consistent with the theory of global warming, while the alternatives offered by sceptical scientists — even the much heralded role of the Sun — so far fail that test.

Global temperature, therefore, has risen from near the coldest to the warmest levels of the Holocene within the past century, reversing the long - term cooling trend that began ~ 5000 yr B.P.

Overall there has been a fairly steady warming trend of 0.5 °C per century since 1680, which is when that notorious playboy Charles II of England began racing his Ferrari at Silverstone.»

But on the contrary, the Southern Ocean has warmed by around 0.5 °C in the three decades since satellites began measuring sea ice trends.

The US CLIVAR Hurricane Working Group was formed to improve understanding of interannual variability and trends in the tropical cyclone activity from the beginning of the 20th century to the present and quantify changes in the characteristics of tropical cyclones under a warming climate.

Like other paleoclimatologists, he also is finding that the warming trend that began in the 20th century is more pronounced in the Arctic than it is in the rest of the globe.

Seems that the most recent warming trend that begins just past the max trough of the Atlantic Multi-decadal lines up with the warming of the Pacific Decadal Oscillation during two of the main multi-centenial warm surges, the first one from about 1910 - 1940 and the 2nd stronger one from about 1970 - 2000.

The results reflect changes in U.S. average temperatures, which rose in the 1950s, stabilized in the 1960s, and then began a warming trend in the late 1970s.

Marcott paper Basically the folks at RC have probably made poor ol Marcott respond that the uptick did not matter anyway its not important, significant, robust etc don't rely on it just forget about it please etc but unfortunately for them as Ross MC on Realclimate reply, at CA says «But that is precisely what they do in Figure 3 of their paper, and it is the basis of their claim that «Global temperature, therefore, has risen from near the coldest to the warmest levels of the Holocene within the past century, reversing the long - term cooling trend that began ~ 5000 yr B.P.» Without the uptick in their proxy reconstruction this kind of statement could never have been made.

There hasn't been a millennial warming trend since the one at the beginning of the Holocene that got us out of the last Ice Age.

There may be an underlying warming trend, which started as we began emerging from the LIA, long before humans were emitting any substantial amounts of GHGs.

Starting in the early 1700s, there are signs the warning rebound was beginning, but it wasn't until the late 1800's that one can discern a strong post-LIA warming trend that ushers in the modern era.

Sentence 2 begins by saying «The TRENDS in temperature...» and ends with ``... the observed warming TRENDS.»

Per NOAA's published annual mean temperatures, the modern warming trend for the U.S., since the beginning of 1950, amounts to an increase of 1.35 °C by century end.

The last warming trend ended before this century began, some fifteen years ago.