Investing in the biosphere would be more profitable than the geological storage of CO2


In the role of ecosystems in limiting climate change, the United Nations Environment Program (UNEP) calls for priority to protection of soil and trees to reduce the amount of atmospheric CO2, rather than relying on new technologies to capture and storage of this gas.

A biosphere, abundant and healthy, naturally absorbs CO2. The tropical forest, for example, can absorb 15% of greenhouse gases emitted by humans. The preserve would be a much smarter investment in geological, says UNEP.

While it is unclear what effects could be sequestration of CO2, why not focus on natural means of absorption of greenhouse gases by protecting ecosystems and limiting deforestation asks UNEP.

Better managed and protected, trees, soils or peat could fill that role better than any technology. “Perhaps the international community neglects it a tested method, whose effectiveness was never contradicted during the millenia: biosphere. According to certain estimates, the alive systems of the Earth would be able to sequester more than 50 carbon gigatonnes during the next decades”, said Achim Steiner, UNEP Executive Director considers that this alternative should be seriously considered for the summit in Copenhagen.

But protecting the existing sites is not sufficient, it would also require new ones, through programs including plantations. Investing in the biosphere require a limitation on pasture but also less intensive crops, an option less expensive than CO2 capture the report said. "Sometimes the land can be of great importance for the local population, as pasture land for cattle, or a source of wild food or other resources," says UNEP, aware that such investment is likely to cause local tensions.

Co2 Capture and Storage:


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