This paper uses annual variation in climate to examine the impact of temperature and precipitation on national economies. We find three primary results. First, higher temperatures substantially reduce economic growth in poor countries. Second, higher temperatures appear to reduce growth rates, not just the level of output.

This recent study by SANDEE examines the link between stream flow, agricultural water use and economic returns to agriculture. Attempts to simulate the likely impacts of regeneration of a degraded forest catchment on stream flow and the consequent impact on irrigation tankbased agriculture in a downstream village.

IMD's long range forecast for the seasonal rainfall over the country as a whole and over different homogenous regions except northwest India have been accurate. However, the seasonal rainfall over northwest India and rainfall during July for the country as a whole have not been accurate.

The hydrogeological environment in the Nagapattinam district has been subjected to pollution considerably. The eastern part of the district being tail end of the canal system, and due to inferior quality of ground water, the agricultural prosperity in the eastern part attained a set back. The agricultural lands are brought under aquaculture use.

Moderate increases in temperature and nitrogen from atmospheric pollution actually improve forest productivity. After more than 20 years of research in the northern hardwood forests of Michigan, scientists at Michigan Technological University's School of Forest Resources and Environmental Science have reached this surprising conclusion.