Ecological Footprints
What is Calderdale's 'Ecological Footprint'?
The Ecological Footprint measures how much nature we have, how much
nature we use, and who uses what. Calderdale's Ecological Footprint represents
the amount of biologically productive land and water its residents use.
We use land for the natural resources it can provide, such as food and
timber, for its ecological services, such as absorbing waste, and to build
and live on. Our global Ecological Footprint is larger than available
productive land because we are using natural resources more quickly than
they replenish. This is called overshoot .
The world average Ecological Footprint is 2.2 global hectares per person.
In contrast, dividing the total biologically productive surface area of
the planet by the current population gives us our budget for
sustainable living: 1.8 hectares per person (some of which we may want
to share with other species). By contrast Calderdale's Ecological Footprint
is 5.22 global hectares per person ( UK: 5.4); this is more than 60% higher
than our ecological budget. The UK has an Ecological Footprint among
the highest 15 countries on a per person basis.
Download the Calderdale Ecological Footprint report
and datasheet
. More information from Stockholm Institute http://www.sei.se/reap/index.php
and WWF http://www.wwflearning.org.uk/ecobudget/localauthorities/
Today, the world is in ecological overshoot. Humanity's Ecological Footprint
exceeds the Earth's biocapacity by over 20 percent. Overshoot means using
resources more quickly than they can be replenished. Trees can be harvested
faster than they regrow, fisheries can be depleted more rapidly than they
restock, and CO 2 can be emitted more quickly than ecosystems can absorb
it. It is possible to exceed ecological limits for a while, but this ‘deficit
spending' leads to the destruction of ecological assets, on which our
economy depends, such as depleted groundwater, collapsing fisheries, CO
2 accumulation in the atmosphere, and deforestation. With humanity's current
demand on nature, overshoot is no longer merely a local, but a global
phenomenon.
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