By Alexander Grothendieck
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Extra resources for Cohomologie Locale Des Faisceaux Coherents (Sga 2)
He studied the principles of Sir Dietrich Brandis, recognized as the father of tropical forestry. Brandises’ teachings had a profound impact on Stoll, as they did for the founder of the US Forest Service Gifford Pinchot. By the 1960s, Stoll had founded timber procurement ofﬁces in Central and West Africa; however, he had yet to establish a forestry company where he could implement Brandises’ principles. In 1967, he bought two companies in the Congo (Brazzaville) and merged them into a single company: CIB.
Selective logging in northern Congo, for example, was planned on a 30-year rotation (Congolaise Industrielle des Bois, 2006). A company that plans its operations over a long time horizon is more likely to make investments in the long-term management and conservation of an area than a company that plans to exploit and exit. Most donors to conservation projects give money on a 1–3 year timeframe, even though managing threats to biodiversity usually takes decades. In a world where environmental donors tend to fund the newest, trendiest issues, the ﬁnancial and logistical support from the private sector may be the best opportunity for sustaining biodiversity conservation over a span of many years.
The case of oil exploration in Nigeria is perhaps the most notorious example of environmental degradation associated with an extractive industry in Africa; many other examples exist. Alluvial mining of diamonds in places like Sierra Leone and Angola is associated with the devastation of gallery forests and aquatic fauna; in Zambia, copper and uranium mines threaten rivers with heavy metals and acidic discharges that have negative consequences for the health of local inhabitants and wildlife. In Senegal and Mauritania, international ﬁshing ﬂeets endanger artisanal ﬁsheries.
Cohomologie Locale Des Faisceaux Coherents (Sga 2) by Alexander Grothendieck