Both biocapacity and Ecological Footprint are expressed in a common unit called a global hectare (gha). In 2012, the Earth’s total biocapacity was 12.2 billion gha, or 1.7 gha per person, while ...

Overshoot Day is calculated using UN data to work out each country’s ecological footprint and the ‘biocapacity’ of the planet. Biocapacity is Earth’s ability to produce renewable resources ...

So-called Earth ... Day - the date when humanity has used all the biological resources that Earth can renew annually - has crept steadily earlier since the 1970s, according to the Global Footprint ...

Every April 22, Earth Day is celebrated around the world ... fact of reducing our meat consumption helps reduce our water footprint.