India's white marvel, the Taj Mahal, is slowly turning brownish-yellow because of air pollution, says an Indo-US study which also identifies the pollutants responsible for the effect.
The authors of the report would like to thank the advisory committee and report reviewers for their helpful comments and guidance. City Rankings 97 Appendix 2: Methods Overview Cities studied City selection City boundaries Data quality screen Literature review Particulate matter Temperature Calibration analysis Comparison of forest cover data sources at different scales Global analysis Geospatial data GIS Analysis Maximum possible street tree-planting targets Tree-planting and maintenance costs Particulate matter and temperature analysis Health impacts analysis Electricity and carbon sequestration analysis Works Cited 6 Bythe vast majority of humanity will live in cities, towns, and other urban areas.
This rapid urbanization is unprecedented in human history, and bythe vast majority of humanity will live in cities, towns, and other urban areas. Among the most pressing of global urban environmental challenges is air quality.
In most cities, the most damaging air pollutant is particulate matter, which is emitted from a variety of sources, especially the burning of agricultural residues, fuelwood, and fossil fuels. And the problem has the potential to get worse: One study forecast that byfine particulate matter could kill 6.
Forecasted global mortality from PM 2. The number of people forecasted to be killed will almost double i. Some of that increase is due simply to population growth.
The number of deaths per 10, people, however, is still expected to go up by roughly 50 percent, primarily due to an increase in PM 2. Data taken from Lelieveld et al. Already, heat waves are the weather-related disaster that causes the most mortality globally Figure E2killing an estimated 12, people on average annually 5 and making life unpleasant for millions.
Climate change is only going to make the threat of urban heat waves more severe, as the increase in greenhouse gases traps more of the sun s energy, increasing the frequency and severity of heat waves. Just as smart cities are trying to reduce their concentration of PM 2.
Can nature help address these twin problems of air that is too dirty or too hot? Trees and other vegetation, whether planted along a city street or growing in a park or residential yard, provide many benefits to people, such as aesthetic beauty, Climate change-attributable heat-related deaths annually, without adaptation enhancement of property values, erosion prevention, stormwater management, and noise reduction.
Trees also sequester carbon, helping mitigate climate change. Parks also provide space for urbanites to recreate, which brings real physical and mental health benefits. It looks like trees may play an important role in making our air healthier, too.
Dozens of studies now show that tree leaves filter out particulate matter from the atmosphere, along with many other air pollutants. Similarly, many scientific studies show that the shade trees cast, along with their transpiration of water during photosynthesis, can help reduce air temperatures while also reducing electricity use for residential cooling.
But questions remain for urban leaders and public health officials:FILE LInk Domain Title Description ID Environmental issues Air pollution attheheels.com attheheels.com Environmental Issues.
ENVIRONMENT/CLIMATE CHANGE- January to December - Compiled By Fr. Paul G Documentation Centre∗ Pollution turning Taj Mahal yellow: Study (9. Archives - January January 29, Rachael Carson?
"How industry hijacked 'sound science'" - "Gov. Kathleen Blanco seized the opportunity to buttonhole President Bush on his visit to New Orleans recently and pitch the long-awaited coastal restoration plan.
The president reportedly replied that he'd support it, provided it was based on "sound science.". ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 29, NO. 5, , – A Review of Atmospheric Chemistry Research in China: .
Cluster analysis of the forest community were performed using chord distance and minimum variance with the help of PAST diversity analysis software (). Cluster analysis classifies all the tree species into five distinct forest community/forest types: dry miscellaneous; low land miscellaneous; sal mixed; pure teak and savanna.
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