Airborne black carbon, also called soot, can cause the dome effect by warming the atmosphere's top layer and blocking sunlight that would otherwise warm the surface air. The reduced temperature difference between the two layers lowers the boundary between them. This effect traps pollution around major cities, worsening air quality, new research suggests. Researchers observed the dome effect around several of China's megacities in December 2013. The compressed near-surface layer of the atmosphere led to thick hazes of pollution, the researchers report online March 16 in Geophysical Research Letters. Reducing local black carbon emissions from industry, biofuel burning, diesel vehicles and coal burning would quickly improve air quality around many megacities, the researchers propose. The report, however, noted that the pay hike will boost GDP by around 40 bps during the current fiscal. The pay hike impact will also jack up food prices, the report said, adding that "food prices could consequently increase, leading to inflation rising above the baseline by 80-100 bps in 2016-17, even assuming effective government policies relating to food stocks, procurement and minimum support prices". On achieving the inflation target (6 per cent in January this year), the Governor said inflation has evolved along the projected trajectory and the January 2016 target was met with a marginal undershoot. "Going forward, CPI inflation is expected to decelerate modestly and remain around 5 per cent in FY17 with small inter-quarter variations," he said, but warned that there are uncertainties surrounding this inflation path emanating from recent unseasonal rains, the likely spatial and temporal distribution of monsoons, the low reservoir levels by historical averages, and the strength of the recent upturn in commodity prices, especially oil. Persistence of inflation in certain services warrants watching, mainly due to pay hikes, he said, while there will be some offsetting downside pressures stemming from tepid demand in the global economy. But the government's effective supply-side measures keeping a check on food prices, and "the government's commendable commitment to fiscal consolidation" will have a salutary impact on inflation.
Tuesday 5 April 2016
Dome effect leaves Chinese megacities under thick haze
Airborne black carbon, also called soot, can cause the dome effect by warming the atmosphere's top layer and blocking sunlight that would otherwise warm the surface air. The reduced temperature difference between the two layers lowers the boundary between them. This effect traps pollution around major cities, worsening air quality, new research suggests. Researchers observed the dome effect around several of China's megacities in December 2013. The compressed near-surface layer of the atmosphere led to thick hazes of pollution, the researchers report online March 16 in Geophysical Research Letters. Reducing local black carbon emissions from industry, biofuel burning, diesel vehicles and coal burning would quickly improve air quality around many megacities, the researchers propose. The report, however, noted that the pay hike will boost GDP by around 40 bps during the current fiscal. The pay hike impact will also jack up food prices, the report said, adding that "food prices could consequently increase, leading to inflation rising above the baseline by 80-100 bps in 2016-17, even assuming effective government policies relating to food stocks, procurement and minimum support prices". On achieving the inflation target (6 per cent in January this year), the Governor said inflation has evolved along the projected trajectory and the January 2016 target was met with a marginal undershoot. "Going forward, CPI inflation is expected to decelerate modestly and remain around 5 per cent in FY17 with small inter-quarter variations," he said, but warned that there are uncertainties surrounding this inflation path emanating from recent unseasonal rains, the likely spatial and temporal distribution of monsoons, the low reservoir levels by historical averages, and the strength of the recent upturn in commodity prices, especially oil. Persistence of inflation in certain services warrants watching, mainly due to pay hikes, he said, while there will be some offsetting downside pressures stemming from tepid demand in the global economy. But the government's effective supply-side measures keeping a check on food prices, and "the government's commendable commitment to fiscal consolidation" will have a salutary impact on inflation.
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