{"id":17422,"date":"2022-01-19T18:48:59","date_gmt":"2022-01-19T17:48:59","guid":{"rendered":"https:\/\/bonpote.com\/the-5th-planetary-boundary-has-been-officially-crossed-and-nobody-cares\/"},"modified":"2022-07-02T20:13:13","modified_gmt":"2022-07-02T18:13:13","slug":"the-5th-planetary-boundary-has-been-officially-crossed-and-nobody-cares","status":"publish","type":"post","link":"https:\/\/bonpote.com\/en\/the-5th-planetary-boundary-has-been-officially-crossed-and-nobody-cares\/","title":{"rendered":"The 5th planetary boundary has been officially crossed (and nobody cares)"},"content":{"rendered":"\n

On 18th January 2022, a catastrophic news just fell. Scientists from the Stockholm Resilience Center<\/a> (SRC) confirmed that we have crossed a 5th planetary boundary : the “chemical pollution<\/em>” boundary or “introduction of novel entities into the biosphere<\/em>“. The 5th, on the 9 identified planetary boundaries.<\/p>\n\n\n\n

However, this news was fully unnoticed. In France, no mainstream media dedicated time to it, preferring to debate on the latest Zemmour’s release or on the Jean-Michel Blanquer’s holidays. A strong impression to experience the movie “Don’t Look Up”<\/em><\/a>, or to relive the release of IPCC report, when medias preferred to focus on Messi<\/a>. We are just talking about a threat to the stability of the world’s ecosystems whose humanity depends on.<\/strong> <\/p>\n\n\n\n

What’s a planetary boundary ?<\/h2>\n\n\n\n

Before going into details, let’s define what a planetary boundary is. In year 2009, Johan Rockstr\u00f6m led a 28 international scientists’s group in order to identify the processes that regulate the stability and the resilience of the Earth system. They will propose a quantitative measure of the planetary boundaries<\/a> within which humanity can keep developing and thriving<\/strong>. Here is the result in year 2015 :<\/p>\n\n\n\n

\"planet-boundaries\"
Source : Steffen and al., 2015 ; Planetary boundaries: Guiding human development on a changing planet, Science<\/em>
<\/figcaption><\/figure>\n\n\n\n

The planetary boundaries therefore answer this question: “up to what limits will the Earth system be able to absorb anthropic pressures without compromising the living conditions of the human species<\/strong> ? \u00bb. <\/p>\n\n\n\n

Planetary boundaries are not as simple as at first sight…<\/h3>\n\n\n\n

Boundaries provide a fairly rigorous quantitative and qualitative framework on the environmental impacts of our societies. Crossing these ecological boundaries is tantamount to exceed the sustainability limit of our environment and invites us to modify our ways to produce and to consume. These limits are beginning to be recognized and considered<\/a> by numerous organizations and States (UN<\/a>, UE<\/a>, France<\/a>), even if they raise criticisms<\/a>, like any model.<\/p>\n\n\n\n

Some important subtleties to remember : <\/strong><\/p>\n\n\n\n