The Permian climate became increasing arid, and this change seemed to favour the amniotes, which became progressively more abundant and diverse during this era.
In contrast, the increasing arid character of the southeastern part of Epivillafranchian Europe resulted in periodically harsh substrate and a more grazing specialized feeding mode.
Salinity in treated wastewater is often increased, especially in arid and semi-arid areas, and may harm crops irrigated from wetlands.
That notwithstanding, the proportion of households vulnerable to extreme weather events is perceived to be increasing in arid environments of eastern Africa, especially in Kenya, and there is an uncertain degree to which the population or the system is becoming susceptible and unable to cope with hazards and stresses, including the effects of climate change.
The RBM/WHO minimum specifications for PET and PE LLIN need to be significantly increased for semi-arid settings; also further research on PET and PE yarn "equivalence" (denier and filament number per yarn) needs to be conducted if increased durability of LLINs and improved sustainability of malaria control are to be achieved.
The increasing role of arid and semi-arid ecosystems as carbon sinks [ 49] makes them a especially relevant target for our terraformation proposal.
Evidently, additional rain enhanced the number of days when conditions for germination were met and increased establishment in the arid and semiarid regions.
There would be flash floods, droughts, famines, storms, increased desertification of semi-arid regions, and frequent fires ravaging global forests.
In many semi-arid regions, increased water use efficiency due to higher atmospheric CO2 concentrations leads to an increase in the herbaceous or grassy cover.
The demand for camel meat appears to be increasing especially in arid regions.
