Ecological and carbon footprintPresentation Transcript
Ecological Footprint (Impronta ecologica)
What is A Ecological Footprint?
The ecological footprint is a measure of human demand on the Earth's ecosystems. It compares human demand with planet Earth's ecological capacity to regenerate. It represents the amount of biologically productive land and sea area needed to regenerate the resources a human population consumes and to absorb and render harmless the corresponding waste.
Using this assessment, it is possible to estimate how much of the Earth (or how many planet Earths) it would take to support humanity if everybody lived a given lifestyle
Depends from :
Loss of biodiversity
Sea resources consumption
Land resources consumption
Distribution of population…
… and ecological footprint
… and ecological footprint per capita 2009
Ecological Footprint by region 2010 Earth Overshoot day: August 21 st : the day in which we exhaust our ecological budget for the year
Scenario 2010 Earth Overshoot day: August 21 st : the day in which we exhaust our ecological budget for the year
What is A Carbon Footprint?
A carbon footprint is a measure of the impact our activities have on the environment, and in particular climate change. It relates to the amount of greenhouse gases produced in our day-to-day lives through burning fossil fuels for electricity, heating and transportation etc. The carbon footprint is a measurement of all greenhouse gases we individually produce and has units of tonnes (or kg) of carbon dioxide equivalent.
Anidride carbonica (CO 2 )
Metano (CH 4 )
Ossidi di azoto (N 2 O)
Atmospheric composition has changed in the past two centuries: all the main greenhouse gases have substantially increased
Human activities have changed the composition of the atmosphere since the pre- industrial era