Onn Winckler | Vol. 62, 2023
Environmental impact
Reaching an 8 billion global population “is an occasion to celebrate diversity and advancements while considering humanity’s shared responsibility for the planet,” UN Secretary General António Guterres said in the UN statement.
Having more people on Earth puts more pressure on nature, as people compete with wildlife for water, food and space. Meanwhile, rapid population growth combined with climate change is also likely to cause mass migration and conflict in coming decades, experts say.
And whether it’s food or water, batteries or gasoline, there will be less to go around as the global population grows. But how much they consume is equally important, suggesting policymakers can make a big difference by mandating a shift in consumption patterns.
Carbon emissions of the richest 1%, or about 63 million people, were more than double the emissions of the poorest half of humanity between 1990 and 2015, according to a 2020 analysis by the Stockholm Environment Institute and non-profit Oxfam International.
Resource pressure will be especially daunting in African nations, where populations are expected to boom, experts say. These are also among the countries most vulnerable to climate impacts, and most in need of climate finance.