deposition, as would be expected from a large Icelandic volcanic eruption, continues to suppress CH4 emissions from wetlands long after the pollution event has ceased. Our analysis of the stoichiometries suggests that 5 years is a minimum CH4 emission recovery period, with 10 years being a reasonable upper limit. Our findings highlight the long-term impact of acid rain on biospheric output of C...

Mining operations in the Sudbury district of northern Ontario have resulted in environmental damage caused by acid rain and heavy metal pollution. Remedial liming (Ca/MgCO3) has been used in an attempt to restore the pH of the lake water and soil to natural levels. The spatial and temporal variation of metal concentrations in the annual growth rings of trees may be a useful indicator of the eff...

We use the linear programming approach to examine the overall macroeconomic performance and compute shadow prices of SO2 emission abatements for thirty regions in China during the 1996-2002 period. Our major findings are as follows: On average, the east is the most efficient and the west is the most inefficient during these seven years. The average efficiency of those regions with serious acid ...