Pop X is the first newsletter from the Center for Biological Diversity (CBD) dedicated solely to the issues related to human overpopulation and overconsumption, as well as the the extinction crisis and its effects on biodiversity.
As of this post, the CBD reports that the current world population is 6,888,183,791. Click here for the current tally. That same page offers information and resources exploring the link between human overpopulation and the extinction crisis.
This chart from the U.S. Geological Survey illustrates the correlation between extinction rates and human population growth:
Need to know more? Get the Pop X newsletter by signing up here, and find out how you can be part of the solution.