Exact(6)
Without a state mandate, the center found, emissions would begin to rise again after 2010.
The Guardian revealed in May an IEA analysis that found emissions had risen by a record amount in 2010, despite the worst recession for 80 years.
Recent studies of natural gas production facilities in Utah, for example, have found emissions as high as 9% of gas recovered from wells.
Van Huissteden's own research in Siberia found emissions from biological sources that were almost four times higher than the limit imposed by Kohnert in her paper.
They also found emissions of several pinene compounds from prescribed fires were much higher than those from fireplace wood burning.
In Georgia, another team found emissions of most volatile organic compounds were much higher during the smoldering phase of prescribed fires in pine forests compared with the flaming phase.
Similar(54)
Zhan et al. [32, 33, 34, 35] examine the PL spectra of ZnO films and found emission in the ultraviolet and the visible regions.
In October 2002 the U.S. Environmental Protection Agency analyzed the emissions of a 20% biodiesel/ 80% petroleum diesel blend and found reduced emissions of particulate matter (–12%), unburned hydrocarbons (–20%), and carbon monoxide (–12%).
But studies in the US have found those emissions are always higher than that – often 150 times as high and sometimes 300 times as high.
However, studies of unconventional gas – shale and coal seam gas – in the US have found fugitive emissions are often as much as 17% of the gas produced.
China has clearly overtaken the United States as the world's leading emitter of carbon dioxide, the main heat-trapping gas produced by human activity, a new study has found, its emissions increasing 8percentt in 2007.
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