Sentences with phrase «warm periods since»

You provide no evidence of some substantial increase in volcanic and / or earthquake activity in the global warming period since 1900, or the more recent global warming period of since 1970.

Figure 8 presents model - data trend comparisons for the two warming periods since 1914 and the warming hiatus period from 1945 to 1975.

-- Lyu et al., 2016 Within the last 1,000 years, global - scale surface temperatures underwent a warm period during Medieval times, centennial - scale cooling during the 14th to 19th centuries, and another warm period since the early 20th century.

The drop in mean temperatures since 1950 in the Northern Hemisphere has been sufficient, for example, to shorten Britain's growing season for crops by two weeks... The first half of this century has apparently been the warmest period since the «hot spell» between 5,000 and 7,000 years ago immediately following the last ice age.»

Looking at all possible warming periods since the end of the nineteenth century we find that there are none that meet this requirement.

This chart also delineates the two major warming periods since 1850.

Not exact matches

Mandzukic has been a huge success since moving to Bayern Munich, scoring 44 goals in 78 appearances, but is seemingly set for a period warming the bench and the forward is said to be unhappy at the club's decision to sign another forward.

Since it is insulated, it can keep the milk warm for up to 8 hours or can keep the coldness of a drink for such a period of time.

Since a bottle warmer is designed to heat up and stay hot for a period of time, you will want to ensure the one you select will stand up over time.

It was period of warm relations with west.Changes have started since 2001 AMB treaty withdrawal by Bush.

The June temperatures meant that the first half of 2012 was one of the warmest on record, and contributed to the warmest 12 - month period in the United States since records began in 1895.

The study also concludes that, over a 15 - year period, cutting the black carbon produced by burning fossil fuels, vegetation, dung and other sources could reduce the warming the Earth has experienced since the Industrial Revolution — about 0.8 degrees Celsius — by 17 to 23 percent.

Understanding the complex interplay between climate and biotic interactions is thus essential for fully anticipating how ecosystems will respond to the fast rates of current warming, which are unprecedented since the end of the last glacial period.

«Although the Earth has continued to warm during the temporary slowdown since around 2000, the reduced rate of warming in that period may have lulled us into a false sense of security.

Since levels of greenhouse gases have continued to rise throughout the period, some skeptics have argued that the recent pattern undercuts the theory that global warming in the industrial era has been caused largely by human - made emissions from the burning of fossil fuels.

By comparing the small oscillations in cosmic ray rate and temperature with the overall trends in both since 1955, Sloan and Wolfendale found that less than 14 percent of the global warming seen during this period could have been caused by solar activity.

That puts it more in line with warming trends since the 1950s, though some researchers said there were still some periods of faster warming on record since the 1950s.

The scientists examined bat guano from a cave in northwestern Romania to produce new insight into how the climate in east - central Europe has changed since the Medieval Warm Period, about 850 AD.

Since then, there have been small - scale climate shifts — notably the «Little Ice Age» between about 1200 and 1700 A.D. — but in general, the Holocene has been a relatively warm period in between ice ages.

This was compared with historical tide - gauge and satellite observations of sea - level change for the «global warming» period, since the industrial revolution.

June — August 2014, at 0.71 °C (1.28 °F) higher than the 20th century average, was the warmest such period across global land and ocean surfaces since record keeping began in 1880, edging out the previous record set in 1998.

The public, press and policy makers have been repeatedly told that three claims have widespread scientific support: Global temperature has risen about a degree since the late 19th century; levels of CO2 in the atmosphere have increased by about 30 % over the same period; and CO2 should contribute to future warming.

U.S. Data Since 1895 Fail To Show Warming Trend LINK WASHINGTON, Jan. 25 — After examining climate data extending back nearly 100 years, a team of Government scientists has concluded that there has been no significant change in average temperatures or rainfall in the United States over that entire period.

Both are slightly positive since 1850, and account for approximately 0.2 °C of the observed 0.8 °C surface warming over that period.

Instead, the report said, current highs appeared unrivaled since only 1600, the tail end of a temperature rise known as the medieval warm period.»

Assuming you believe that the Arctic's temperature rise since the mid-1990s has been caused by CO2, how do you explain the ~ 40 years of cooling that preceded the warming — since CO2 was rapidly rising during both the cooling and warming periods?

William M. Gray wrote... I judge our present global ocean circulation to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continue.

The contiguous U.S. had its warmest January - to - June period since records began in the late 19th century.

In the paper Gray makes many extravagant claims about how supposed changes in the THC accounted for various 20th century climate changes («I judge our present global ocean circulation conditions to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continue.

The trend in more cold extremes was strongest during the period since pronounced Arctic warming emerged, or about the last 25 years, which lends at least some support to the possibility that that warming is helping fuel the trend, Shepherd said.

Since NOAA began keeping records in 1880, the combined global land and ocean surface temperature was the warmest on record for both April and for the period from January through April in 2010.

Since the warming rate is twice as fast as the interglacial cooling rate, the typical interglacial period has an asymmetrical pattern suggesting Earth heats up due to natural processes more rapidly than when it cools.

The public, press and policy makers have been repeatedly told that three claims have widespread scientific support: Global temperature has risen about a degree since the late 19th century; levels of CO2 [carbon dioxide] in the atmosphere have increased by about 30 percent over the same period; and CO2 should contribute to future warming.

I thought my period reappeared because my 13 year old daughter just had menarche and you know how two women living in the same house can affect each other... until I realized that since the warmer months are here I stopped taking my vitamin D.

Since the Euro 3 regulations in 2000, performance has been measured using the New European Driving Cycle test (NEDC; also known as MVEG - B), with a «cold start» procedure that eliminates the use of a 40 - second engine warm - up period found in the ECE+EUDC test cycle (also known as MVEG - A).

It might be helpful to time this transition period to coincide with the weather getting colder, since most cats prefer warm, dry places.

If you look back 12 months, the period from June 2011 through May 2012 was the warmest 12 - month block since records started to be kept more than a century ago.

If you are trying to attribute warming over a short period, e.g. since 1980, detection requires that you explicitly consider the phasing of multidecadal natural internal variability during that period (e.g. AMO, PDO), not just the spectra over a long time period.

Since our current warm period is primarily a NH event a Maunder type -2 C NH cooling would be dramatic.

No one on either side of the fence, aside from a few crackpots, denies that the world is now warmer than it's been for a very long time — at least since the Medieval Warm Period and possibly earlier.

The IPCC purports to have a highly confident explanation for the warming since 1950, but it was only during the period 1976 - 2000 when the global surface temperatures actually increased.

As another example, Montford makes the claim that if you eliminate just two of the proxies used for the MBH98 reconstruction since 1400, the Stahle and NOAMER PC1 series, «you got a completely different result — the Medieval Warm Period magically reappeared and suddenly the modern warming didn't look quite so frightening.»

The «global warming stopped» meme is particularly lame since it relies on both a feigned ignorance of the statistics of short periods and being careful about which data set you use.

-- The combined global land and ocean average surface temperature for the December — February period was 0.41 °C (0.74 °F) above the 20th century average of 12.1 °C (53.8 °F), making it the 17th warmest such period on record and the coolest December — February since 2008.

This reduces the observed warming since 2011 (the start of their forecast period) to the end of the data curve from 0.34 to 0.22 °C.

Further, since you agree with us that the warming rate during the next several decades will be below 0.325 ºC / decade, then, as I have pointed out, due to the level of natural variability, a 20 - yr time period is too short to really differentiate between your beliefs and ours (if there exist any).

It also shows, consistently, that nobody is trying to «get rid of the medieval warm period» or «flatten out the little ice age» since those are features of all reconstructions of the last 1000 to 2000 years.

The fact remains that the rate of warming in the early 20th century is comparable to that in the late 20th century whether you look at the Arctic in isolation or the globe as a whole and since CO2 levels were markedly different in the 2 periods there must be another significant factor.

Since the climate has demonstrably changed in the past many times, all assumed to be natural, then our random selections of time periods would most likely encompass periods of natural warming or natural cooling.

In 1880 — 1919, before the appearance of the strong warming trend over this region, WEIO tended to be anomalously colder than EEIO most of the time, and thus we see the strong negative events show in Fig. 4, since we have used the climatology of the entire period from 1880 to 2004 as the reference.