Sentences with phrase «significant change of trend»

Dr. Gavin Schmidt, director of NASA's Goddard Institute of Space Studies, tweeted last week «Is there evidence that there is a significant change of trend from 1998?

Not exact matches

Venture capital firms, in particular, have long been overwhelmingly averse to funding female - run enterprises, «and I don't see a trend line for any significant change,» added Trish Costello, CEO and founder of Portfolia, a platform designed to help women invest in entrepreneurial enterprises.

The behavior of the long - term and the short - term GMMA is usually sustained with significant changes in the trend direction.

Longer - term moving averages typically are better predictors of significant trend changes.

As noted in The Price of Climate Change, my colleagues and I believe these trends will not only encourage significant growth in clean technologies, energy efficiency and renewable infrastructure, but also greater transparency and reporting on sustainability and the carbon footprints of corporations around the globe.

The movement of price provides evidence of the current trend, but the MACD is flagging up changes in momentum which can sometimes precede a significant price reversal.

The megatrends illustrated in Figure 1 represent five significant trends in the global sector which are already changing the F&A products demanded by consumers and the business models of F&A companies.

«Quenching Australia's thirst: a trend analysis of water - based beverage sales from 1997 to 20111 published in Nutrition & Dietetics has revealed significant changes in what Australians are drinking.

Most indicators of the state of biodiversity (covering species» population trends, extinction risk, habitat extent and condition, and community composition) showed declines, with no significant recent reductions in rate, whereas indicators of pressures on biodiversity (including resource consumption, invasive alien species, nitrogen pollution, overexploitation, and climate change impacts) showed increases.

For Japan, the results are again mixed with similar proportions of sites showing significant positive and negative trends for SOMO35 and AVGMDA8, but more significant negative trends for 3MMDA1 (~ 30 %), in addition to a large fraction of sites showing weak or no indication of change for both site types.

Mean annual minimum relative humidity showed a weak but significant trend of − 0.127 % per decade but showed no significant changes in affected area.

The study highlighted significant impacts of this trend, including land clearing for farming, logging and settlement; introduction of invasive species; carbon emissions leading to climate change and ocean acidification; and toxins that poison the ecosystem.

Decades of observation and analysis reveal significant trends of change.

We assess the heat content change from both of the long time series (0 to 700 m layer and the 1961 to 2003 period) to be 8.11 ± 0.74 × 1022 J, corresponding to an average warming of 0.1 °C or 0.14 ± 0.04 W m — 2, and conclude that the available heat content estimates from 1961 to 2003 show a significant increasing trend in ocean heat content.

No significant change in the intake of dietary fiber was seen after the various interventions; however, a strong trend toward a decrease was seen in the LF group (18.7 ± 5.4 g, P = 0.015).

Associate Superintendent Judy Park and the Utah State Office of Education's data analysts created this telling report showing overall proficiency in English Language Arts is trending upward despite significant demographic changes, steady enrollment growth and reduced literacy funding.

When analyzing interest coverage trend over several accounting periods, it is important to consider significant changes in the level of borrowings since the full extent of such changes on future interest cover may not be entirely revealed due to the effect of additional borrowings or repayments of loans close to end of accounting periods.

[1] And the trend couldn't be explained by the population of swallows living nearby (which increased over the study period), traffic volume (which «either did not change significantly or increased, depending on the metric used»), or the number of avian scavengers in the area («as none showed significant increases in our study area»).

Selections from the Ella Fontanals - Cisneros Collection, curated by Osbel Suárez, showcases a cross section of the collection and presents to the public a compilation of works by over 60 artists from North America, Latin America, Africa, Europe and Asia, who have witnessed and played key roles in changes that have occurred in the most significant trends in art over the last fifty years.

Firstly, there's no significant change in trend (given ARMA (1,1) noise), and secondly it ignores knowledge about what the climatological temperature is at the beginning of the trend.

As should be clear, there is no evidence of any significant change in trend post-1997.

For instance, in your scenario of a 20 - yr temperature change of 0.3 ºC + / - 0.18 ºC, assuming a natural noise level (observed standard deviation of detrended annual global temperatures from 1977 - 2004) of 0.085 ºC, a statistically significant difference in the trend that leads to the lowest end of your range (a change of 0.12 ºC) and the trend that leads to the highest end of your range (0.48 ºC) doesn't begin to rise above the level of noise until around year 16 or 17.

For periods where there is a significant trend you can't simply use an ensemble over this period to estimate random variation since part of the change over that period is due to the (genuine) trend rather than to random variation.

It presents a significant reinterpretation of the region's recent climate change origins, showing that atmospheric conditions have changed substantially over the last century, that these changes are not likely related to historical anthropogenic and natural radiative forcing, and that dynamical mechanisms of interannual and multidecadal temperature variability can also apply to observed century - long trends.

«We caution that the question of when a statistically robust trend can be detected in damage time series should not be confused with the question of when climate - induced changes in damage become a significant consideration...

Interestingly, the paper «Climate Trends and Global food production since 1980» (Lobell, Schlenker, Costa - Roberts, in Sciencexpress, 5 May, Science 1204531) confirms my finding of the absence of climate change in the USA: «A notable exception to the [global] warming pattern is the United States, which produces c. 40 % of global maize and soybean and experienced a slight cooling over the period... the country with largest overall share of crop production (United States) showed no [adverse] effect due to the lack of significant climate trends».

During 1976 — 2004, global changes in surface RH are small (within 0.6 % for absolute values), although decreasing trends of − 0.11 % − 0.22 % decade − 1 for global oceans are statistically significant.

The CLAs advised against including this statement in the SPM, noting that: the research is currently inconclusive; overestimation of the models is too small to explain the overall effect and not statistically significant; and it is difficult to pinpoint the role of changes in radiative forcing in causing the reduced warming trend, with Co-Chair Stocker referring to this issue as an «emerging science topic.»

In describing their findings, Do et al. report that across all three subsets of data, «more stations showed statistically significant decreasing trends [in streamflow] than statistically significant increasing trends,» which finding held regardless of whether the stations were filtered by the presence of dams or changes in forest cover.

We assess the heat content change from both of the long time series (0 to 700 m layer and the 1961 to 2003 period) to be 8.11 ± 0.74 × 1022 J, corresponding to an average warming of 0.1 °C or 0.14 ± 0.04 W m — 2, and conclude that the available heat content estimates from 1961 to 2003 show a significant increasing trend in ocean heat content.

And many regions have shown no significant net changes or trends in either direction relative to the last few hundred to thousands of years.

If this is so, how can we expect reliable verbals from focus groups, some of whom have not had a significant exposure to temperature change trends in their adult lifetime?

They explain how, overall, Antarctic sea ice cover (frozen sea surface), for separate reasons involving wind changing in relation to the location of certain warming sea water currents, shows a slight upward trend, though it also shows significant melting in some areas.

... incomplete and misleading because it 1) omits any mention of several of the most important aspects of the potential relationships between hurricanes and global warming, including rainfall, sea level, and storm surge; 2) leaves the impression that there is no significant connection between recent climate change caused by human activities and hurricane characteristics and impacts; and 3) does not take full account of the significance of recently identified trends and variations in tropical storms in causing impacts as compared to increasing societal vulnerability.

Among the aspects of that variation that we can isolate are probably factors that have produced a general «global» warming trend since the deepest part of the «Little Ice Age», long before any «mainstream» estimate of anthropogenic changes to pCO2 would have been significant.

With 2010 over, we now have 16 observations starting in 1995, and (unsurprisingly to anyone who followed the argument thus far) the upward trend is now statistically significant at the 5 per cent level [1] That is, if climate change since 1995 (the time of the first IPCC report, and well after Lindzen announced himself as a sceptic) had been purely random, the odds against such an upward trend would be better than 20 to 1 against.

Trends in the peak magnitude, frequency, duration and volume of frequent floods (floods occurring at an average of two events per year relative to a base period) across the United States show large changes; however, few trends are found to be statistically significant.

«Positive trends in the numbers of 945 hPa and 950 hPa TCs in the SIO are significant but appear to be influenced to some extent by changes in data quality.»

A global catalogue of catastrophe losses was constructed (MuirWood et al., 2006), normalised to account for changes that have resulted from variations in wealth and the number and value of properties located in the path of the catastrophes... Once the data were normalised, a small statistically significant trend was found for an increase in annual catastrophe loss since 1970 of 2 % per year.

A change in sign of the temperature trend is a significant result.

There are plenty of ways of looking at the surface air temperature record that all show no statistically significant change in trend from earlier decades, so any study that concludes sensitivity is different just with the addition of the past decade must be automatically suspect, and that's not even taking into account the heat going into the oceans.

The Intergovernmental Panel on Climate Change reported in its most recent scientific assessment that «[n] o robust trends in annual numbers of tropical storms, hurricanes, and major hurricanes... have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

NIPCC scientists concluded the IPCC was biased with respect to making future projections of climate change, discerning a significant human - induced influence on current and past climatic trends, and evaluating the impacts of potential carbon dioxide - induced environmental changes on Earth's biosphere.

The simulations also produce an average increase of 2.0 °C in twenty - first century global temperature, demonstrating that recent observational trends are not sufficient to discount predictions of substantial climate change and its significant and widespread impacts.

I'm also curious to see if the new version of UAH temperatures has a significant effect on the Cowtan and Way temperature reconstruction - the changes in the UAH V6 Arctic temperature trend (by a factor of almost 2) is quite significant.

Eg, even over a 30 - year period (statistically significant WRT climate change), the range of decadal trends starts at -0.05 C for the South pole, and is greatest at 0.45 C at the North pole.

Peter317 Fixed yours too: Moral of the story: on spans too short to have a significant confidence interval you can put your start points and end points wherever you like, and the trend line changes.

It is the 30 - year significant downward trend in Arctic sea ice extent, which has accelerated in recent years, that is the important indicator of climate change.

The most likely candidate for that climatic variable force that comes to mind is solar variability (because I can think of no other force that can change or reverse in a different trend often enough, and quick enough to account for the historical climatic record) and the primary and secondary effects associated with this solar variability which I feel are a significant player in glacial / inter-glacial cycles, counter climatic trends when taken into consideration with these factors which are, land / ocean arrangements, mean land elevation, mean magnetic field strength of the earth (magnetic excursions), the mean state of the climate (average global temperature), the initial state of the earth's climate (how close to interglacial - glacial threshold condition it is) the state of random terrestrial (violent volcanic eruption, or a random atmospheric circulation / oceanic pattern that feeds upon itself possibly) / extra terrestrial events (super-nova in vicinity of earth or a random impact) along with Milankovitch Cycles.

As the spring warming over west Antarctica represents the only significant trend in the interior of Antarctica (excluding Peninsula) for 1979 - present, it deserves consideration in studies that seek to understand and model Antarctic climate change.