
Ecological Footprint for Sustainable Living in Japan
A few months ago, my 14-year old son completed a sustainability project. He concluded two things: that planting trees is not enough to reduce carbon emissions; and that plastic is our most pressing problem.
His project inspired me to do some research of my own, and I gained a new perspective about how we are over-using our natural resources.
You may be familiar with Tax Freedom Day, the day when American taxpayers have worked enough to pay their taxes, and can begin working for themselves. (In 2019, Tax Freedom Day for Hawaii taxpayers was April 23).
Earth Overshoot Day marks the date when humanity’s demand for ecological resources (fish and forests, for instance) and services in a given year exceeds it’s biocapacity, or what Earth can regenerate in that year (such as replenishing resources and absorbing waste such as carbon dioxide).
In 2021, Earth Overshoot Day falls on July 29.
This is the day when the Earth has worked as much as it can to sustain us for the entire year, and must endanger itself to continue working for us.
The United States’ Country Overshoot Day fell on March 14 – 137 days earlier.
To calculate Earth Overshoot Day, Global Footprint Network looks at changes in our Ecological Footprint, which measures the amount of biologically productive land and sea resources required to provide for the demands of our population. This includes the areas for growing the food, fiber, and timber we consume, the space we occupy with our houses and roads, and the storage needed to capture carbon dioxide from burning fossil fuel.
The main drivers were the carbon Footprint (increased 6.6% from 2021) and a decrease in global forest biocapacity (reduced 0.5% from 2021).
Sometimes, we see facts that are too slow or small to relate to (such as changes in average temperature) or too large to comprehend.
Earth Overshoot Day gives us a perspective that’s hard to ignore. Every day for the rest of the year, we are using resources meant for future generations.
In his essay, my son wrote, “Instead of pledging to plant trees, countries could commit to their pledges by promoting plant-based foods and supporting carbon capture programs.”
What one thing can you start doing – or do less of – to “move the date forward”? What can your family do to create a more sustainable future?