According to many authorities the impact of humanity on the earth is already overshooting the earth’s capacity to supply humanity’s needs. This is an unsust

Our Ecological Footprint presents an internationally-acclaimed tool for measuring and visualizing the resources required to sustain our households, communities,

The ecological footprint is one of the most prominent tools used to measure environmental sustainability, and its rise in academic and policy debates since the

Any realistic response to climate change will require reducing carbon emissions to a sustainable level. Yet even people who already recognize that the climate i

"I've seen many books on this subject, but none so well documented and honest."—Whole Earth