This year August 20th marks the "approximate calendar date on which humanity’s resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year." (source) This date keeps moving in the wrong direction...this date shouldn't exist but since it does it should be much closer to the end of the year...like December 31st or something. For instance, in 1993 it was October 21st...now it is in August.
In other words there are either too many human animals on the planet or the human animals here are using up too much of the Earth to support their lives. In fact, there are too many of us and we "consume" way too much.
For instance, the current estimate is that it would take 1.5 Earths to support us...on a renewable basis if we averaged using the Earth the way we do now. That's for all of us, it gets really stinky if you look at in on a country by country basis. For instance, if everyone lived the way we do here in the United States, we would need 5 Earths to support us. You can explore the ecological footprint for most countries here.
Here's my thought. Advocate for our fellow Earthlings but don't forget that advocating for them also means that there needs to be fewer of us human animals. Consider incorporating the handing out of endangered species condoms in your advocacy efforts. Two things to remember, the fewer there are of us...the fewer there are to harm our fellow Earthlings...and the fewer there are of us the more of what Earth has to offer is potentially available for the other Earthlings.
Overshoot day. Scarey stuff, do your part to push back by living vegan and by avoiding adding to the number of humanoids.