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Insects: you will miss them once they gone

80% of all different kinds of animals are insects. They maintain the world as we know it for without their ability to pollinate plants, our environment and our food supplies will collapse. It is therefore alarming that wherever scientists have looked, insect numbers and species are declining.

Yet insects were the first animals to colonise the land some 400 million years ago. Their decline is almost certainly due to loss of habitat in cutting down forests , converting grass lands to growing crops and above all, a changing climate.

To prevent further loss of species we have to reverse the loss in biodiversity by creating more habitats and limiting further changes in climate as quickly as possible.
[National Geographic Magazine, May 2020]

Loss of biodiversity and likely economic consequences

The loss of biodiversity is due to many factors including increasing population, increasing land use for growing crops, cutting down of forests, over fishing the oceans and changes in climate.

An in depth review led by Partha Dasgupta, University of Cambridge, has for the first time evaluated economically the benefits of biodiversity in its widest sense. In the past 20 years there has been a 40% reduction in the stocks of natural capital which include soil, air, water and all living things.

The reason for this reduction in natural capital is that almost all Governments have encouraged people to exploit nature rather protect it and this could result in collapse of entire eco systems thereby endangering both current and future generations.

Reversing the loss in biodiversity will require a shared understanding of how these systems work and a shared endeavour to reverse these losses

[Economics of Biodiversity – the Dasgupta review]



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