This treaty takes action to control the introduction and spread of pests of plants and plant products. The treaty protects natural as well as cultivated plants, so it has implications for agriculture as well as biodiversity. While the IPPC's primary focus is on plants and plant products moving in international trade, the convention also covers research materials, biological control organisms, and anything else that can act as a vector for the spread of plant pests including containers, soil, vehicles, and machinery.

This Law is enacted for the purpose of preventing and controlling environmental noise pollution, protecting and improving the living environment, ensuring human health, and promoting economic and social development.

This law was established in China to prevent the pollution of the environment by solid waste, to ensure public health and safety, and to promote the development of socialist modernization.

There is increasing evidence that the global climate is changing: global temperatures have risen about 1 F over the past century, mountain glaciers are melting back, sea level is rising. But how is the climate of the United States changing? Are these changes like others being experienced around the world? Is the US climate becoming more or less variable? Are we having more or fewer climatic extremes? This USGCRP seminar addresses these questions in the context of the anthropogenic influences on atmospheric composition and climate

The Fifth session of the IPCC discussed on the IPCC work program for 1991 and beyond and provided objective analysis of scientific and technical assessment of the issue of climate change. The Panel also approved the report of the fourth session.

The Sixth session of the IPCC approved the report of the fifth session and agreed on many issues including establishing an IPCC Task force to make proposals on the future structure of IPCC. The Panel also decided on an interim expansion of the IPCC Bureau.

The Panel considered a number of issues and approved various draft reports. Among other agenda items, the panel assessed the National Greenhouse Gas Inventories Program (IPCC NGGIP), and IPCC special report on ,Land use, Land Use Change and Forestry.