
Challenges
| The term “biodiversity” refers to the diversity of living organisms, encompassing diversity of species, diversity of genes within individual species, and the organisation and distribution of ecosystems. Biodiversity is the principal source of benefits derived from ecosystems, providing us with oxygen and food, as well as participating in fundamental mechanisms such as air purification, the water cycle and fertilisation of the soil. Biodiversity also plays a crucial role in climate stabilisation and temperance, and in limiting certain effects of natural catastrophes. As well as being a vital resource for mankind in the face of environmental challenges, the living world provides countless benefits in economic and social terms, and in fields such as medicine and culture. | |
Worldwide, species are disappearing around 100 times as fast as would normally be the case, and tens of thousands of them are already facing extinction in the foreseeable future (see Grenelle environmental summit - 2007, report by the “Preserving biodiversity and natural resources” workgroup). According to the fourth report by the Intergovernmental Panel on Climate Change (GIEC), published in 2007, global warming is likely to accelerate the extinction process, thereby causing extensive changes in the structure and functioning of land and marine ecosystems.
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Report “Preserving biodiversity and natural resources”
Synthesis of the fourth report by the Intergovernmental Panel on Climate Change