Sentences with phrase «urban warming increases»

«Earlier studies have shown that urban warming increases pest abundance in street trees,» says Emily Meineke, lead author of a paper describing the work.

Not exact matches

«Recent studies found that scale insect populations increase on oak and maple trees in warmer urban areas, which raises the possibility that these pests may also increase with global warming,» says Dr. Elsa Youngsteadt, a research associate at NC State and lead author of a paper on the work.

One factor is that researchers have found warmer temperatures increase the number of young produced by the gloomy scale insect — a significant tree pest — by 300 percent, which in turn leads to 200 times more adult gloomy scales on urban trees.

Warming will push people «right off» the edge «It's really the urban poor that have the least ability to cope with increasing variability in water supply,» said Palaniappan.

The top 12 also included three areas of environmental concern: air pollution by oxides of nitrogen and other combustion products; the increase in carbon dioxide levels causing global warming; and urban waste.

Global warming will bring increased summer heat waves nationwide that are especially harmful to low - income and minority populations in urban areas and the elderly, according to a new report by environmental and public health groups.

These risks will increase as people move to urban areas, which generally warm faster than their surroundings.

-- 7) Forest models for Montana that account for changes in both climate and resulting vegetation distribution and patterns; 8) Models that account for interactions and feedbacks in climate - related impacts to forests (e.g., changes in mortality from both direct increases in warming and increased fire risk as a result of warming); 9) Systems thinking and modeling regarding climate effects on understory vegetation and interactions with forest trees; 10) Discussion of climate effects on urban forests and impacts to cityscapes and livability; 11) Monitoring and time - series data to inform adaptive management efforts (i.e., to determine outcome of a management action and, based on that outcome, chart future course of action); 12) Detailed decision support systems to provide guidance for managing for adaptation.

Additionally, sea level rise driven by climate warming combined with coastal subsidence related to human activities increased the storm surge while urban development such as paving over grasslands and prairies are likely to have exacerbated flooding.

Amongst the bad news is the spread of invasive species, chemical pollution, global warming, species decline, over-logging and urban sprawl (for example in 15 years Pennsylvania has increased its «urban footprint» by 47 % while its population has increased by only 2.5 %).

«Wavelet analysis shows that this relative urban warming trend was primarily manifested in the form of multi - decadal and interseasonal cycles that are likely attributable to gradual increased winter heating in Ottawa (heat island effects) associated with population growth.

Steve McIntyre: «If you are not a climate scientist (or a realclimate reader), you would almost certainly believe, from your own experience, that cities are warmer than the surrounding countryside From that, itâ s easy to conclude that as cities become bigger and as towns become cities and villages become towns, that there is a widespread impact on urban records from changes in landscape, which have to be considered before you can back out what portion is due to increased GHG.

«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.»

Yang et al. published an extensive study on the impact of UHI on China's warming and discovered that over 40 % of the increase could be explained by the UHI effect in some urban areas.

The top panel shows the «global warming» trends of several of the global temperature estimates, and the bottom panel shows the global increase in urban population.

a), b) & c) combined imply that the urban - heat - island effect is NOT increasing on a global basis, and therefore CAN NOT serve as the «real» cause giving rise to the impression of global warming as an artefact.

I learnt in high school geography classes during the mid 1950s that large urban conurbations create their own warmer and wetter climate; has anything changed, apart from an increase in gullibility?

geometry: affects radiative, convective evaporative, and conductive heat transfer; urban geometries tend to selectively block or intensify winds, tend to impact the extent of greenspace, increase exposed surface area, change the sky view factor, add overall heat capacity when compared to rural areas; example — «The canyon structure that tall buildings create enhances the warming.

Lastly Parker does not seem to speculate on the fairly consistent higher trend of temperature increase he found on windy days compared to calm days, except to say it is the opposite of an urban warming signal and earlier in his paper to speculate that the windy days might not be as impacted by bad temperature sensing apparatus and siting.

Parker (2004) segmented observed surface temperature data into lighter and stronger wind terciles in order to assess whether the reported large - scale global - averaged temperature increases are attributable to urban warming.

The data document a strong urban heat island eff ect (UHI) and a warming with increasing station elevation.

Another paper in Climate Change in 2007 stated: Studies that have looked at hemispheric and global scales conclude that any urban - related trend is an order of magnitude smaller than decadal and longer time - scale trends evident in the series (e.g., Jones et al., 1990; Peterson et al., 1999)... Thus, the global land warming trend discussed is very unlikely to be influenced significantly by increasing urbanization (Parker, 2006).

Incidentally, at that time the biggest indicators of «proof» of global warming constituted a fraction of a degree increase in both urban weather stations and ocean surface temperatures.

Deprived of the arguments from depletion, national security and global warming, the campaign to increase urban density and mass transit rests on nothing but a personal taste for expensive downtown living, a taste which the suburban working - class majorities in most developed nations manifestly do not share.

An increasing number believe that any warming is so small it is indistinguishable from the noise in the environmenal data sets, and that the data have not been properly adjusted for such things as urban heat island effects (are the city temps warmer than the suburbs where you live?

Locally — in heavily urban environments for instance — this can be an issue, but on a global basis it is about 2 orders of magnitude smaller than the warming effect of increasing CO2 (1.7 W / m2).

These warm surfaces contribute to the build up of heat in dense urban areas and that leads to a surplus of problems, including increasing summertime peak energy demand, air conditioning costs, air pollution, greenhouse gas emissions, heat - related illness and mortality.

American Invsco founder Nick Gouletas says the U.S. is experiencing increasing demand from the baby boomer group, and as a result, he expects condominium living in urban and warm climate areas will continue to grow and experience high levels of appreciation.