We Have Already Consumed a Year’s Supply of the Planet’s Resources in Less Than 8 Months
In less than eight months, humanity has used up nature’s budget for the entire year, with carbon sequestration making up more than half of the demand on nature, according to data from Global Footprint Network, an international sustainability think tank with offices in North America, Europe and Asia.
Global Footprint Network tracks humanity’s demand on the planet (Ecological Footprint) against nature’s ability to provide for this demand (biocapacity). Earth Overshoot Day marks the date when humanity’s annual demand on nature exceeds what Earth can regenerate in that year. Earth Overshoot Day has moved from early October in 2000 to Aug. 13 this year.
The costs of this ecological overspending are becoming more evident by the day, in the form of deforestation, drought, fresh-water scarcity, soil erosion, biodiversity loss and the buildup of carbon dioxide in the atmosphere. The latter will significantly amplify the former, if current climate models are correct. Consequently, government decision-makers who factor these growing constraints in their policy making will stand a significantly better chance to set their nation’s long-term economic performance on a favorable track.
“Humanity’s carbon footprint alone more than doubled since the early 1970s, when the world went into ecological overshoot. It remains the fastest growing component of the widening gap between the Ecological Footprint and the planet’s biocapacity,” said Mathis Wackernagel, president of Global Footprint Network and the co-creator of the Ecological Footprint resource accounting metric.
“The global agreement to phase out fossil fuels that is being discussed around the world ahead of the Climate Summit in Paris would significantly help curb the Ecological Footprint’s consistent growth and eventually shrink the Footprint.”
The carbon footprint is inextricably linked to the other components of the Ecological Footprint—cropland, grazing land, forests and productive land built over with buildings and roads. All these demands compete for space. As more is being demanded for food and timber products, fewer productive areas are available to absorb carbon from fossil fuel. This means carbon emissions accumulate in the atmosphere rather than being fully absorbed.
A Second Chance
The climate agreement expected at the United Nations Conference of Parties (COP) 21 this December will focus on maintaining global warming within the 2-degrees-Celsius range over pre-Industrial Revolution levels. This shared goal will require nations to implement policies to completely phase out fossil fuels by 2070, per the recommendations of the U.N.’s Intergovernmental Panel on Climate Change (IPCC), directly impacting the Ecological Footprints of nations. .
Assuming global carbon emissions are reduced by at least 30 percent below today’s levels by 2030, in keeping with the IPCC’s suggested scenario, Earth Overshoot Day could be moved back on the calendar to September 16, 2030 (assuming the rest of the Footprint would continue to expand at the current rate), according to Global Footprint Network.