Sentences with phrase «aridity in»

So, too, has global warming as a consequence of the combustion of fossil fuels, which has begun to extend the growing season, create ever greater levels of fuels and increase aridity in already dry lands.

«Climate models project increased aridity in the 21st century over most of Africa, southern Europe and the Middle East, most of the Americas, Australia, and Southeast Asia.

«These conclusions have potential implications for the coming decades, as climate models predict greater aridity in the region,» the authors wrote.

Although there are hypotheses, well - documented events such as the centurieslong period of elevated aridity in the SW [Southwest] during medieval times have no known cause.

Although there are hypotheses, well - documented events such as the centurieslong period of elevated aridity in the [Southwest] during medieval times have no known cause.

My question is, is there any research that gives an estimate as to the potential climatic effect of CO2 via the stimulation of plant growth and increased plant tolerance of aridity in a post-industrial, doubled CO2 atmosphere?

Moser adds, «Owing to the importance of California's economic and agricultural activities in North America, and the dependence of these activities on water, prolonged aridity in California in the future will have far - reaching effects across the United States, into Canada and beyond.»

Change in the overturning circulation likely contributes to expansion of subtropical conditions and increased aridity in the southern United States [30], [100], the Mediterranean region, South America, southern Africa, Madagascar, and southern Australia.

There is no evidence for enhanced aridity in the northern Neotropics.

At a personal level the prayer of the Divine Office also strengthens the virgin in her own seeking of Christ by uniting her with the whole Church, and that discipline and objective reality of the Office will sustain her in the inevitable times of aridity in her spiritual life.

Not exact matches

It is true that spiritual aridity is widespread in many sectors of our society, but if we look more closely we will see that rather than a dearth there is a superabundance of competing visions.

The spiritual aridity, the rebarbative prose, the programmatic subordination of literature to an ideological agenda - all make the book an exemplar of the discipline, which is to say, they make it an exemplar of a discipline in crisis, a discipline that has lost its way.

Tim Flannery, director of the South Australian Museum in Adelaide, had never given much thought to dry dirt, but while he was researching «Lush Life,» an article on Australian flowers (page 78), he gained a new appreciation for aridity.

By analyzing isotopes of oxygen preserved in herbivore teeth and tusks, they can quantify the aridity of the region and compare it to indicators of plant type and herbivore diet.

«One of the main outcomes of this study is that older faunas, linked to environments that were disappearing due to increased aridity at the time, were displaced to the north surviving temporally in local refugia with more humid conditions, particularly in the region of Catalonia and the South of France» adds Manuel Hernández Fernández, professor at Universidad Complutense de Madrid and senior author of the study.

«Something subtler in the lead - up, such as increasing aridity and changes in vegetation, may be doing the damage.»

Climate change in southern Africa affects animals through the direct effects of increasing air temperatures and aridity.

Examining the interplay between urban development and water development in Arizona, Kupel argues that the culture that settlers brought with them from the humid Midwest and East proved more important than aridity, environmental sustainability, and differences in ecological settings.

The results clearly indicate that HP populations were capable, despite the pronounced aridity that characterised the period in which they lived, to exploit territories and ecosystems that the preceding Still Bay people did not occupy.

This aridity caused dissolved minerals in the ground water to precipitate into the vast mineral deposits seen today, creating a landscape unlike anywhere else in the world.

«What we saw was this increase in aridity and decrease in resources.

Oxygen isotope ratios in carbonate sediments are correlated with the ratio of precipitation to evaporation and thus indicate aridity.

According to one study that looked at eight fuel aridity metrics in the Western U.S. and modeled climate change's effects on them, human - caused climate change accounted for about 55 percent of the observed increases in fuel aridity between 1979 and 2015 (Figure 6), and added an estimated 4.2 million hectares of forest fire area between 1984 and 2015.7 Based on all eight metrics, the Western U.S. experienced an average of 9 additional days per year of high fire potential due to climate change between 2000 and 2015, a 50 percent increase from the baseline of 17 days per year when looking back to 1979.

That said, the overall trend is clear: with fuel aridity increasing in the western U.S. due in part to human - caused climate change, the authors project that both burned area and burn severity will continue to increase under climate change.

«The exact percentage of human contribution remains uncertain, but the overall relationship — an increase in fuel aridity, fire days, and fire extent — is clear and significant,» Anchukaitis said.

Biologists assume, for example, that the spotted hyena is now found in savannas and arid regions of Africa and the Middle East because it is perfectly adapted to their specific conditions, such as high temperatures and aridity.

But Stringer and Galway - Witham add that the region may have proved a difficult area to thrive in long term: «There were severe periods of aridity before and after this time, meaning that the region was probably more often a «boulevard of broken dreams» than a stable haven for early humans.»

Taken together, this suggests that small steps in brain expansion in Africa may have been driven by regional aridity.

Agricultural opportunities and challenges in arid areas, including the distinction between aridity and infertility, irrigation access, salinization risk and land ownership

Representing Chile at the 55th International Art Exhibition — la Biennale di Venezia in its temporary pavilion situated in the Arsenale, Jaar's evocative installation Venezia, Venezia guides visitors along an arching passage»» like one of Venice's iconic bridges»» of striking visual and somatic encounters of aridity and liquidity.

The potential for surprises increases as a function of sensitivity, but even «not so alarming» trends in warming can have long standing negative effects on reefal communities, continental aridity, etc..

CO2's effect of stimulating plant growth and increasing plant tolerance of aridity contributed to revegetating large areas of land that were desert at the LGM, compounding the effects of an increase in atmospheric humidity, reduced land / ocean surface ocean ration, and increased warmth, all of which combined caused the reduction of airborne dust and atmosperic albedo.

Temperature changes in the tropics appear to have been smaller, however the increased aridity did lead to a modest reduction in the tropical rainforest extent, but a rapid turnover in species composition.

In a region best known for its aridity and less - than - optimal soils, their crop yields are impressive.

What they found is that although about half of the island groups are projected to experience increased rainfall — predominantly in the deep tropics — overall changes to island freshwater balance will shift towards greater aridity for over 73 % of the island groups (16 million people) by mid-century.

Changes in aridity — the ratio between evaporation and precipitation — are expected in many regions as a result of climate change.

Climate's role in increasing such aridity has grown since 2000, the researchers say, and will continue to do so.

«But even this remarkably adaptable society — one of the first urban civilisations built in a desert — could not cope forever with a falling water table and intensifying aridity.

A 2100 - yr decadal - resolution salinity and aridity proxy record of lacustrine ostracode - shell Mg / Ca ratios from a closed - basin lake in the northern Great Plains shows statistically significant periodicities of ∼ 400, 200, 130, and 100 yr.

Consider this in the context of Mr. Romm's closely related prediction, also based on a blog citation of another single study using climate simulation models, for aridity impacts for the U.S.:

I conclude that the observed global aridity changes up to 2010 are consistent with model predictions, which suggest severe and widespread droughts in the next 30 — 90 years over many land areas resulting from either decreased precipitation and / or increased evaporation.

While Midwest states have experienced ever more flooding over the last 50 years, the regions already suffering from extremes of aridity are being warned to expect megadroughts worse than any conditions in the last 1,000 years.

African bush elephants in Samburu National Reserve, Kenya: How much aridity can they tolerate?

Moreover, the faster - than - predicted change in global climate (Intergovernmental Panel on Climate Change, 2007) and the different available scenarios for climate change suggest an increase in aridity for the semi-arid regions of the globe and the Mediterranean region in the near future.

With data on various isotopes and aridity and CO2 concentrations now complete, the mirroring of the climate change in the horse size is quite exact.

The inversion acts as a barrier to vertical convection and is largely responsible for the aridity and high frequency of fog found along the west coasts of the subtropical continents, especially in summer.

While there is evidence of a persistent relationship between periods of aridity during the mid-Holocene and the MCA, as both are associated with increases in radiation and cooler SST in the eastern Pacific [64], climate simulations suggest that current forcing by increased GHG may produce an opposite oceanic response in the future [65].

We used PDSI values from the North American Drought Atlas (NADA, version 2a) to detect changes in aridity variability and periodicity for the Southwest over the past millennium.

Spatial patterns of loss and gain showed contrasting latitudinal patterns, with a westward range shift of species around the species - rich equatorial transition zone in central Africa, and an eastward shift in southern Africa; shifts which appear to be related mainly to the latitudinal aridity gradients across these ecological transition zones

Physicist Joe Romm, drawing on recent climate research, reports that «levels of aridity comparable to those in the Dust Bowl could stretch from Kansas to California by mid-century.»