TESSA: A practical tool to measure the impact of protecting biodiversity
(PHYSorg.com Biology)

Researchers, public officials and NGOs often ask, `Can we put a price on forests?`. The question may sound absurd or even cynical, but as an expert in environmental-conservation practices, I believe that measuring biodiversity value could help us better preserve it. Evaluating the `price` of a forest, a lake or a hill for a village, a city or even a country would ensure better conservation practices.