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Between January 1990 and March 1995, the research program KERFIX carried out the first continuous measurement of parameters linked to the carbon cycle in the Southern Ocean. These longitudinal observations form part of the study of global climate change.

In the Gard region an old lead and zinc mine still contains waste material. Rain dissolves this into large quantities of arsenic, which flows into a stream in the area. Marc Leblanc, a CNRS researcher, analyzes the contaminated water and seeks to understand the complex chemical reactions produced in it. He demonstrates the function of aerobic bacteria which contribute to limiting the pollution.

The toromiro is a small tree which had grown on the Easter Island for about 35.000 years. Human pressure, linked to important climatic fluctuations and the massive importation of sheep during the 19th century, provoked its extinction. The toromiro was saved by Thor Heyerdahl in 1956, who preserved some seeds. An interdisciplinary program is devoted to its culture and its reintroduction on the island. This program needs some genetic investigations.

Within the European research program "Measuring and Modelling the Dynamic Response of Remote Mountain Lake Ecosystem to Environmental Change", mountain lakes and their fauna are studied with the goal of a better understanding and more effective protection of their ecological system.

Nioro du Sahel in Mali has been twined with the town of Limours in France since 1983. In 1983, the twinning committee, with the help of the French Ministry for Cooperation and the Malian government, decided to equip the town with electricity. This report shows the electrification works and also many interviews of Nioro inhabitants, all having a passion with this revolution.

This film shows the living conditions of African immigrates, who live in unfit buildings in Paris. It deals with the serious health problems (saturnism) provoked on the children by the ingestion of lead nitrate contained in the wall paints of the staircase and the apartments.

Sophora tomomiro is a legendary tree which used to grow abundantly on the Easter Island. This sacred tree, whose wood has an exceptional quality, disappeared from his natural biotope in the 1960 ' s.

Report shot in Vietnam at the occasion of the solar eclipse which took place on the 24th October 1995. A short version of this film (26 ' ) can be found on our catalogue.

A team of scientists is studying the tropical forest in French Guiana to understand the main mechanisms of the ecosystem. A particular focus is how the forest renews itself, a system based on the transport and scattering of seeds by fruit-eating animals.

The research work of the fifty-year-old LMA (Acoustics and Mechanics Laboratory) in Marseilles: acoustic propagation and environmental protection, ultrasound, mechanics of structures and materials, hearing, computer music.

In Cambay, a town in Gujarat, India, agate- and carnelian-cutting is performed in many workshops according to traditional techniques, some of which go back 4,000 years.

Introduction to the research work of the Montpellier Botanical Institute, on the occasion of its one hundredth anniversary. The Montpellier school of botany is famous for its work on systematics, plant morphology, ecology, palaeobotany and palaeoecology.

Sarwal, a village in the State of Bihar, India, suffers from chronic water shortage. Following two years of both psychological and social preparation, the inhabitants of the village set up a solar pump.

A charcoal burner at work in the forest of Baon, Yonne - from the building of the woodstack to the bagging of the charcoal.

The history and present-day industrial and medical uses of radioactivity.