Urban Biodiversity
Although cities
occupy just 2 percent of the Earth's surface, their inhabitants use 75%
of the planet's natural resources. Cities draw on their surrounding
ecosystems for goods and services, and their products and emissions can
affect regional and even global ecosystems. Healthy ecosystems and
biological diversity are vital for cities to function properly.
Ecosystems provide three main kinds of services to the city:
provisioning of food, fibre and fuels; regulating through purification,
detoxification and mitigation of droughts and floods; and enriching the
spiritual, aesthetic and social life of urban dwellers.
Biodiversity - the diversity among living
organisms - plays an essential role in ensuring the survival of life on
earth. Clean water, foodstuffs, medicines and quality of life are just a
few of the services which biodiversity offers to cities. Recognizing
the importance of biodiversity and healthy ecosystems for their
survival, cities today undertake many initiatives to utilize and
conserve their surroundings efficiently. These actions can reach far
beyond the boundaries of the city, affecting biodiversity on a global
scale.
A Global Partnership on Cities and Biodiversity
was launched by UNEP, the Secretariat of the Convention on Biological
Diversity (CBD), UN-HABITAT, ICLEI, IUCN Countdown 2010, UNITAR, UNESCO
and a Steering Group of Mayors from Curitiba, Montreal, Bonn, Nagoya and
Johannesburg to bring together existing initiatives on cities and
biodiversity. The aim of the Partnership is to engage cities in the
fight to reverse the loss of biodiversity by 2010. The Partnership
assists national and local governments by providing awareness raising
material, organizing workshops and trainings, developing tools and
involving cities in international meetings on biodiversity. Activities
undertaken so far include:
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