Taeke M. de Jong

There are two environmental problems only: bad human health and the decline of biodiversity.

Depending on the definition of health one can estimate that roughly 80% of the human population is unhealthy, while some 100 000 species are lost since Linnaeus. How to calculate the risk of loosing them?

There are positive and negative relations between human health and biodiversity. The impact of biodiversity on human health still is rather unknown.

Could we welcome more rare species in our towns by creating ecological conditions, ecotope cities, ‘Biotope City’? How does it interfere with our health?